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DSpecialty Gases & Equipment

Mixtures

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Mixtures

Mixture Order MixtureComponent Blend Analytical Grade Reference ConcentrationRange Tolerance Uncertainty

EVEnvironmentalGrades(1)

NTRM T N/A N/A 1%EPAProtocol E 2ppm-25ppm 10% 1% 25.1-49.9% 5% 1%PrimaryMaster N 1ppm-9.9ppm 10% 0.1ppm 10ppm-25ppm 10% 1% 25.1ppm-9999ppm 5% 1% 1.0%-49.9% 2% 1%or 0.02%abs*CertifiedMaster M 1ppm-25ppm 20% 5% 25.1ppm-999ppm 10% 2% 0.1%-49.9% 5% 2%DynamicBlend D 1ppm-99ppm Zero 2%Master 100ppm-49.9% Zero 1%DynamicBlend Y 1ppm-99.9ppm Zero 5%Standard 100ppm-49.9% Zero 2%

STStandardGrades

PrimaryStandard P 1ppm-9.9ppm 10% 0.1ppm 10ppm-25ppm 10% 1% 25.1ppm-999ppm 5% 1% 0.1%-49.9% 2% 1%or 0.02%abs*CertifiedStandard C 1ppm-99.9ppm 20% 5% 100ppm-999ppm 10% 2% 0.1%-49.9% 5% 2%Non-Certified U 1ppm-999ppm 20% N/AStandard 0.1%-49.9% 10%CustomStandard Z 1ppm-49.9% TBD TBD

* Whicheverissmaller.(1)AllEnvironmentalGradesareNISTtraceable.Actualranges,blendtoleranceandanalyticaluncertainty arebasedonavailableNationalInstituteofStandardsandTechnology(NIST)SRMconcentrations. Pleaseseeindividualcomponentsforspecificinformation.

Note:Forallmixtures,blendtoleranceandanalyticaluncertaintyspecificationmayvarydependingonthechemicalcharacteristicsofthecomponentandthecylindersize.Formixturesoutsideoftheseranges,pleasecontactyourlocalPraxairrepresentative.

Grade Specifications

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PraxairGrades

EnvironmentalGrades NTRMNISTTraceableReference MaterialsarecertifiedbytheNational InstituteofStandardsandTechnology (NIST)andacceptedbytheEnviron- mentalProtectionAgency(EPA),as thehighestaccuracystandardscom- merciallyavailable.Thesestandards aretheregulatoryequivalenttoNISTs StandardReferenceMaterials(SRMs) andaremadeupofthesamecompon- entsandarewithintheanalyticalrange ofNISTSRMs.EPAProtocolsUsedforthecalibration andauditofContinuousEmissionMoni- tors(CEMs),PraxairEPAProtocolsare NISTtraceableandproducedinaccor- dancewiththelatestEPAspecifications foundindocument-600/R97/121 Rev.9/97.PrimaryMasterHighaccuracymix- turespreparedgravimetricallyonelectronic high-precisionbalances.Thesestandards areanalyzedandnamedagainstNIST traceablereferencematerials.Certified Master Theseroutinecali- brationmixturesarepreparedbyeither gravimetric,volumetricorpartialpressure methodsandanalyzedagainstNIST traceablereferencematerials.Dynamic-BlendMasterThesezero blendtolerancemixturesareprepared onaninstrumentbaseddynamicblending system.Batchesofcylindersfromtwo toonehundredcanbeproducedwith theidenticalconcentrations.Dynamic-BlendStandardThesemix- turesarepreparedsimilarlytotheDynamic BlendMaster.Certificationofthemixtures isbasedonprocessaccuracyandPraxair PrimaryLaboratoryStandards(PPLS).AllmastergasesareanalyzedandnamedagainstNISTtraceablematerials.

StandardGradesPrimaryStandardHighlyaccurate mixturespreparedgravimetricallyon high-precisionelectronicbalances. Thesestandardsareanalyzedagainst PraxairPrimaryLaboratoryStandards (PPLS)andnamedtoagravimetrically generatedconcentration.Certified Standard Theseroutine calibrationmixturesarepreparedbyeither gravimetric,volumetricorpartialpressure methods.Thesestandardsareanalyzed againstPraxairPrimaryLaboratory Standards(PPLS).Non-Certified Mixturesareprepared bythesamemethodsandthesamecare usedforCertifiedStandardGrades. Analysesarenotreported.CustomMixturespreparedtothe exactblendtoleranceandanalytical uncertaintyrequested.

4.75% 5%

5.10% 5.20%

5.25%

Blend Tolerance

Requested Concentration

ReportedConcentration

CertificationAccuracy

Example: Relative Absolute Value Value

BlendTolerance 5%ofminor 0.25% component

AnalyticalUncertainty 2%ofminor 0.10% component


Mixtures

Behind The Scenes

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Safe, Accurate, Consistent, Reliable... Every Time

Sophisticated communication programs and mixture blending software (worldwide databases with international access) provide the very latest in mixture technology for our customers.

Component Raw Material Allblendingsourcegasesandliquids arequalifiedtoensurethattheyare appropriateforyourapplication.We havedeterminedthroughexperience thatcertainimpuritiesaffecttheper- formanceorstabilityofthefinal mixture.

Wehavedevelopedandusedspecial proprietarypurificationtechniquesfor theremovalofcriticalimpurities.Upon requestacompleteimpurityprofileor specificimpurityanalysescanbe provided.

Cylinder Preparation Praxairutilizesaseriesofcomputer controlledheating,vacuumandpurge cyclestopreparebothaluminumand steelcylinders.

Forlowconcentrationorhighly reactivecomponentsweuseour additional,proprietarycylindertreat- mentprocesses.Withtheapplication oftheseuniquecylinderpreparation processes,weareabletoproduce accuratepartperbillionandlowpart permillionconcentrationreactivegas mixtureswithguaranteedstabilities.

Blending Systems Praxairpreparesmixturesutilizing highload,highsensitivityGravimetric Balances,MicroBalanceCapillary Injection,ComputerizedDynamic BlendingSystemsandVolumetric Manifolds.Ineverycaseweusethe methodbestsuitedtoyourapplication.

Allgravimetricbalancesarecalibrated withNISTtraceableweights.Allbalan- ces,gaugesandprocessinstruments undergospecifiedperiodicmainte- nanceandcalibration.

Mixture Homogenization Onceaparticularmixtureisprepared, mechanicalrolling,gasturbulenceor molecularagitationisusedtoensure thehomogeneityofthefinalmixture.

Analytical Instrumentation GasChromatography (GCdetectors,-TCD,FID,ECD, HID,DID,FPD,PID,NPD,RGA) Chemiluminescence FourierTransformInfrared(FTIR) AtomicAbsorption(GFAA) MassSpectroscopy(MS) FluorescenceUV ProcessInstrumentation (NDIR,O2,THC,H2O)

Reference Materials StandardReferenceMaterials (SRM) NISTTraceableReference Materials(NTRM) GasManufacturersIntermediate Standards(GMIS) PraxairPrimaryLaboratory Standards(PPLS)

Ongoing Inter-Laboratory Quality Assurance Evaluation Programs PerformedQuarterly

Praxairs North American Specialty Gas Facilities are staffed with chem-ists and engineers trained in the preparation and analytical certifica-tion of specialty gas mixtures.

A knowledgeable sales and technical support team is ready to assist you in determining and specifying all your specialty needs including: high purity gases, calibration mixtures and the correct delivery equipment.

Manufacturing And Quality Control

Producingqualitygasmixturesbeginswithpropercylinderselectionandpre-parationtoensurehighqualityanden-hancedstability.Outletsareselectedac-cordingtoCompressedGasAssociation(CGA)guidelines.

ThemanufactureandcertificationofallPraxairspecialtygasesaredocumentedinacomprehensivequalityassurancemanual.Whereappropriate,traceabilitywillbeestablishedtoPraxairPrimaryLaboratoryStandardsortoNISTTrace-ableStandards.Allprocesses,proce-dures,analyticalmethodsandreportsarecarefullydocumented,controlledandinternallyassessedbyPraxairQ.C./Q.A.Officers.

Documentation

Certification:

Certificate of Compliance (COC1)Documentthatdelineatesthataproductmeetsorexceedstheminimumpurityoranalyticalaccuracyasspecified.

Certificate of Conformance (COC2)Statementofguaranteethattheproductfromaspecificbatchconformstothecomponents,minimumpurityandmaxi-mumimpurityspecificationsaslisted.

Certificate of Analysis (COA)Adocumentthatreportstheactualanalyticaltestresultsforpureproductorforacalibrationmixture.Eithersinglecylinderorbatchanalysiscertificationisavailable.

Available Upon Request!

Ask About OurISO Certified Specialty

Gas Plants


Mixtures

Behind The Scenes

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Mixture Safety and Quality

Safety and quality considerations limit the mixtures we can offer among these are:

Fuel Oxidizer Mixtures Praxair will complete a safety review foranymixturescontainingflammable and oxidizing components. Each mixture is evaluated to ensure the flammableconcentrationiswellbelow theflammablelimits.Praxairwillde- termineifthemixturemustbemade at reduced pressure. Final mixture pressuresarebasedonBTU calculations.

Vapor Pressure Restrictions Mixtures containing low vapor pressure components are generally made at reduced pressures.

Pressure reduction helps prevent condensation of less volatile component and ensures mixture homogeneity. Computer modeling is used to generate phase envelopes for mixture evaluation and determi nation of appropriate pressures.

Whereapplicable,Praxairwill recommendlow-pressurecontainers to maximize the volume of contents. RefertopageB4fordetails.

Reactive Gas Mixtures Mixturestabilityisassessedtomake sure the requested components do not react with each other or with the cylinder. Primary consideration is given to safety and the potential by-productscreatedbyachemical

reaction.Integrityofanalyticalaccu- racyisalsoevaluated.Afeasibility review is peformed prior to mixture preparation.

Whereapplicable,Praxairwillprovide aluminum or specially treated cylinders for low concentration reactive gas mixtures.SeeSectionBfordetailson aluminum(pageB3)cylinders.

Thestabilityofcertaingasmixtures canbeaffectedbythelengthoftime theyarestored,aswellasthestorage temperature.Toensuretheintegrity ofgasmixtures,storagetimeand temperatureforsusceptiblemixtures shouldbemonitored.

Mixture Grades and Specifications

Praxair mixtures are grouped into two basic categories, environmental and standard. Please refer to the table on page D1 for complete specifications of all available grades.

Environmental Gradeshavebeen developed to meet the stringent require-mentsofspecificenvironmentalappli- cationssuchasEPAProtocols,I&M(InspectionandMaintenance)emissionstandards,andmixturesrequiringNISTTraceability.Inallcases,specificationshavebeendevelopedtomeetindustrystandardsor,insomecases,tomeetregulatory requirements.

WhenEPAProtocolsarenotnecessary,butNISTtraceabilityisdesired,Praxairsmaster grades provide the highest degree ofaccuracyandconfidenceforyourmostdemandingapplications.Thesemixturesarepreparedgravimetricallyonhigh- precisions,electronicbalancesorwithstate-of-the-artdynamicblenders.

Theaccuracyfromthesemethodsgenerally exceed the accuracy of most analytical instruments. Praxair produces three grades within the Master category; Primary,Certified,andDynamic-Blend.Theminorcomponent(s)areanalyzedandcertifiedbyPraxairandaretraceable toNISTreferencematerial.

Forgeneralpurposes,Praxairsstandard gradesareavailableasPrimaryand Certified.Theseanalyzedstandardsaretypicallyusedforhighvolumeapplica-tionswheretheblendingprecisionand accuracy of the Master grade is not required. Standard grade mixtures are preparedusinggravimetric,volumetric, or partial pressure methods. As in the Mastergrades,theminorcomponent(s)areanalyzedandcertified.Theecono- micalNon-Certifiedgradeissuitablefor applications that do not require analyticalcertification.

Ifyourrequirementscallforspecifica-tionsthatfalloutsideofthosedefinedbyPraxairsvariousgrades,acustomstan-dardwillincludetheexactspecificationsyou need.

If you are uncertain about which grade to choose, Praxair technical support staff can provide recommendations based on specific applications and requirements. Call your Praxair rep-resentative or your nearest customer service location for assistance!

Contact the North America

Technical Support Center at 877-PRAXAIR for assistance!


Mixtures

Application Page

HydrocarbonProcessingIndustry E12-20

Refining E13ASTMD-3710

Refinery Gas StandardsTrace Impurity MixturesTotal Sulfur StandardsMulticomponentMixes E14-15

MulticomponentGasBlendStandards E16-17

NaturalGas E18

GPA Gas Reference StandardHigh Helium Reference StandardDanalyzer MixtureC7+ Natural Gas MixtureSour Natural Gas MixtureExtended Natural Gas MixtureNatural Gas MixturePipeline Natural Gas MixtureHigh Ethane Gas MixturePetrochemical E19

High Purity OrganicsLPG Reference StandardsHighlyReactiveVolatileOrganicCompounds E20

(HRVOC)Standards

UltraLowSulfurDiesel(ULSD) E20

FuelandGasolineStandards

IndustrialHygiene E21-28

TransportableContainers E21-23

PureGases E24

Non-ReactiveGasMixtures E24-26

Butane, Carbon Dioxide, Carbon Monoxide,Hexane, Hydrogen, Isobutylene, Methane,Nitrous Oxide, Oxygen, Pentane, Propane,(Air or Nitrogen Balance)ReactiveGasMixtures E27-28

Ammonia, Benzene, BTEX, Chlorine,Ethylene Oxide, Hydrogen Cyanide,Hydrogen Sulfide. Nitric Oxide, Nitrogen Dioxide, Phospine, Sulfur Dioxide,(Air or Nitrogen Balance)

MixtureSelectionGuide

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Praxair offers flexibility in supplying customized gas mixtures for medical, industrial and scientific applications. Praxair is committed to safely producing stable, accurate mixtures. We produce mixtures from two to 50 or more components and apply all safety and quality considerations gleaned through decades of experience in mixture production.

To simplify the ordering process, Praxair has detailed the most common and popular mixtures in Gases for Special Applications, which is the next section of this catalog. For your ordering convenience, please refer to the following summary of common mixtures offered in section E.

Application Page

AnalyticalInstrumentation E1-5

InstrumentReferenceGuide

GasChromatography E2

Thermal Conductivity Detector (TCD)Flame Ionization Detector (FID)Electron Capture Detector (ECD) Helium Ionization Detector (HID)Flame Photometric Detector (FPD)Photo Ionization Detector (PID)Mass Spectrometer (GC/MS)Discharge Ionization Detector (DID)Ultrasonic Detector (USD)OpticalSpectrometry E3

Absorption

Non-dispersive Infrared (NDIR)Dispersive Infrared (IR)Fourier Transformer Infrared (FTIR)Correlation (IFG/GFC)Atomic Absorption (AA)Nuclear Magnetic Resonance (NMR)Emission E4

Inductively Coupled Plasma (ICP)Arc or Spark EmissionChemiluminescenceFluorescence UVFluorescence X (XRF)MassSpectrometry E4

Other E5

Nuclear Counter, Hydrometer, Paramagnetic Analyzer, Carbon and Sulfur in Steel

EnvironmentalMonitoring E6-11

Product Summary E7NIST Traceable Reference Materials E8EPA Protocols E8 Environmental Mixtures E9Zero Gases E10Mobile Source Emissions Gases E11

MixtureSelectionGuideSummaryofMixturesinSectionE


Mixtures

Mixture Selection Guide

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Mixture Selection Guide Summary of Mixtures in Section E

Application Page

Metal Fabrication E31-33

LaserSupplySystems E31

LaserStar5.5 E32

LaserStar5.0 E32

LaserStarStandard E33

LumonicsLaserMark4and5 E33

LaserTechnics E33

LaserElectronics E33

Life Sciences E34-40

Cryogenic Storage E35

Biological Incubation E35

AerobicIncubationMixtures E35

AnaerobicIncubationMixtures E35

Healthcare E36-40

Medical Gases

MedicalAirUSP E36

CarbonDioxideUSP E36

HeliumUSP E37

NitrogenNF E37

NitrousOxideUSP E38

OxygenUSP E38

Medical Mixtures

GeneralMedicalMixtures E39

LungDiffusion E39

BloodGasAnalysis E39

CanadianRegisteredDrugs E40

Application Page

Food E41-E44

Extendapak Gases

Dry/DehydratedProducts E41

PreparedFoods E41

RedMeats E41

Poultry E42

Fruits E42

ProcessedMeats E43

DairyProducts E43

BakeryProducts E44

FreshVegetables E44

Semiconductor Process Gases E45-E47

SiliconPrecursorGases E47

DopantGases E47

EtchantGases E47

Atmospheric/PurgeCylinderGases E47

ReactantGases E47

Commonly Used Cylinders for Mixtures

Type Cylinder Sizes

Non-Reactive K

Reactive AS

LiquidBlends FX

LP5

PistonCylinder(1000cc)

SeeSectionBforothercylinderoptions.


Mixtures

Minor Mixture Components

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Acetates (Esters)AcidsAlcoholsAldehydesAlkanesAlkynesAminesAromaticsBicyclicsBoranes

Mixture Minor Component Families Available

CarbonylsCyanatesDienesEthersGlycolsHalogenated AliphaticsHalogenated AromaticsHalogenated OlefinsHalogens

KetonesMercaptans (Thiols)Metal HydridesNitrilesNitro CompoundsNonmetal HydridesOlefins (Alkenes)OrganometalicsOxidesOxyhalides

Permanent GasesPhenolsPyridinesSilanesSilicon HalidesSulfidesSulfonesSulfur BearingThiophenes

Common Minor Components in Specialty Mixtures

Praxairs mixture blend-ing capabilities are among the most extensive in the in-dustry. We can blend hun-dreds of minor components in a variety of balance gas-es in concentrations from 50%. The following section con-tains information for binary mixtures of the most com-mon minor components, such as:

Acetylene AmmoniaArgonBenzene n-Butane Carbon Dioxide Carbon MonoxideCarbonyl Sulfide Dimethyl DisulfideDimethyl SulfideEthaneEthanolEthylene

Ethylene OxideHalocarbon-14 Halocarbon-22 Helium Hexane HydrogenHydrogen SulfideIsobutane Isobutylene Krypton MethaneMethanol Neon

Nitric Oxide NitrogenNitrogen Dioxide Nitrous Oxide OxygenPentanePropane Propylene Sulfur Dioxide Sulfur Hexafluoride TolueneVinyl Chloride Xenon

If your required component is not listed here, please contact your Praxair representative for a custom quotation.

How to Create Your Praxair Mixtures in 3 Easy Steps

1 List minor component(s), desired concentration (e.g. ppm, vol%) and specify the desired balance gas.

2 Specify desired mixture grade to meet your specific requirements. Blend toler-ance and analytical uncer-tainty can be specified using Custom Standard. See page D1 for details.

3 Specify desired cylinder style. For first time mixture orders, consult Praxair for the cylinder style best suited for your volume and quality needs.

To simplify reordering, Praxair can create a custom part number for you that specifies all elements of your mixture.

Carbon Dioxide 1200 ppmOxygen 1.0%Nitrogen Balance

Example

Primary Standard K

1

2

3


Mixtures

Acetylene

Balance Range MSDS MSDS Gas Range

Nitrogen 1ppm-5% P-18-0450 1.0-3.2% P-18-0451 3.21-5.0%

Regulator Page

Recommendations

SingleStage PRS40023331-CGA F5

TwoStage PRS40123331-CGA F4

Line PRS40052001-000 F6

NI ACR1P-AS

Reference Number

Praxair Grade

Cylinder Style

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Balance Concentration Reference Praxair Cylinder CGA Contents Pressure Gas Range Number Grades* Style

ft3 m3 psig bar

Nitrogen 1-9.9ppm NIACR1 ST AS 350 143 4.0 2000 137.90 AQ 350 82 2.3 2200 151.68 A3 350 31 0.9 2200 151.68 10-999ppm NIACR2 ST AS 350 143 4.0 2000 137.90 AQ 350 82 2.3 2200 151.68 A3 350 31 0.9 2200 151.68 K 350 209 5.9 2000 137.90 Q 350 70 2.0 2000 137.90 G 350 35 1.0 2000 137.90 1000-9999ppm NIACR3 ST AS 350 143 4.0 2000 137.90 AQ 350 82 2.3 2200 151.68 A3 350 31 0.9 2200 151.68 K 350 209 5.9 2000 137.90 Q 350 70 2.0 2000 137.90 G 350 35 1.0 2000 137.90 1.0-3.2%(1) NIACR4 ST AS 350 142 4.0 2000 137.90 K 350 209 5.9 2000 137.90 FX 510 66 1.9 240 16.55 3.21-5.0%(1) NIACR5 ST AS 350 49 1.4 681 46.95 K 350 73 2.1 681 46.95 FX 510 66 1.9 240 16.55(1) Cylinderpressureandcontentswillvaryproportionatelyathigherconcentrations.

* Key for Praxair Grades (Refer to D1 for complete specification details). STStandardgradesincludePrimary(P), Certified (C), Non-Certified (U)andCustom(Z).

Whenordering,combinetheReferenceNumber

with the Grade and Cylinder Style identification toobtainthecompletepartnumber.

Pleasealsospecifythedesiredconcentration.


Mixtures

Ammonia

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Balance Range MSDS Gases

Air 5ppm-8% P-18-0141

Helium 5ppm-10% P-18-0139

Nitrogen 5ppm-10% P-18-0140

Regulator Page

Recommendations

SingleStage PRS40223331-705 F8

TwoStage PRS40323331-705 F7

Line PRS40252001-000 F9

AI AMR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 5-9.9ppm AIAMR1 ST AS 705 146 4.1 2000 137.90 AQ 705 84 2.4 2200 151.68 A3 705 32 0.9 2200 151.68 10-999ppm AIAMR2 ST AS 705 146 4.1 2000 137.90 AQ 705 84 2.4 2200 151.68 A3 705 32 0.9 2200 151.68 1000-9999ppm(1) AIAMR3 ST AS 705 146 4.1 2000 137.90 AQ 705 84 2.4 2200 151.68 A3 705 32 0.9 2200 151.68 1-8%(1) AIAMR4 ST AS 705 146 4.1 2000 137.90 AQ 705 84 2.4 2200 151.68 L.E.L.16% A3 705 32 0.9 2200 151.68

Helium 5-9.9ppm HEAMR1 ST AS 705 135 3.8 2000 137.90 AQ 705 78 2.2 2200 151.68 A3 705 29 0.8 2200 151.68 10-999ppm HEAMR2 ST AS 705 135 3.8 2000 137.90 AQ 705 78 2.2 2200 151.68 A3 705 29 0.8 2200 151.68 1000-9999ppm(1) HEAMR3 ST AS 705 135 3.8 2000 137.90 AQ 705 78 2.2 2200 151.68 A3 705 29 0.8 2200 151.68 1-10%(1) HEAMR4 ST AS 705 135 3.8 2000 137.90 AQ 705 78 2.2 2200 151.68 A3 705 29 0.8 2200 151.68

Nitrogen 5-9.9ppm NIAMR1 ST AS 705 142 4.0 2000 137.90 AQ 705 82 2.3 2200 151.68 A3 705 31 0.9 2200 151.68 10-999ppm NIAMR2 ST AS 705 142 4.0 2000 137.90 AQ 705 82 2.3 2200 151.68 A3 705 31 0.9 2200 137.90 1000-9999ppm(1) NIAMR3 ST AS 705 142 4.0 2000 137.90 AQ 705 82 2.3 2200 151.68 A3 705 31 0.9 2200 151.68 1-10%(1)(2) NIAMR4 ST AS 705 142 4.0 2000 137.90 AQ 705 82 2.3 2200 151.68 A3 705 31 0.9 2200 151.68

(1) PrimaryandCertifiedStandardsonlyavailable2000ppm.(2) Cylinderpressureandcontentswillvaryproportionatelyathigherconcentrations.

* Key for Praxair Grades(RefertoD1forcompletespecificationdetails). STStandardgradesincludePrimary(P),Certified(C),Non-Certified(U)andCustom(Z).

Whenordering,combinetheReferenceNumberwiththeGradeandCylinderStyleidentificationtoobtainthecompletepartnumber.Pleasealsospecifythedesiredconcentration.


Mixtures

Argon

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Regulator Page

Recommendations

Single Stage PRS40023331-CGA F5

Two Stage PRS40123331-CGA F4

Line PRS40052001-000 F6

Balance Range MSDS MSDS Gases Range

Helium 1 ppm - 99.9% P-18-0008 1 ppm - 50%(1)

Hydrogen 1 ppm - 99.9% P-18-0009 1 ppm - 50%(1)

Nitrogen 1 ppm - 99.9% P-18-0007 1 ppm - 50%(1)

HEARR1P-AS

Reference Number

Praxair Grade

Cylinder Style

Balance Concentration Reference Praxair Cylinder CGA Contents PressureGas Range Number Grades* Style

ft3 m3 psig bar

Helium 1-9.9 ppm HE ARR1 ST AS 580 135 3.82 2000 137.90 AQ 580 78 2.21 2200 151.68 A3 580 26 0.82 2200 151.68 10-999 ppm HE ARR2 ST AS 580 135 3.82 2000 137.90 AQ 580 78 2.21 2200 151.68 A3 580 29 0.82 2000 137.90 K 580 199 5.64 2000 137.90 Q 580 67 1.90 2000 137.90 G 580 34 0.96 2000 137.90 1000-9999 ppm HE ARR3 ST AS 580 135 3.82 2000 137.90 AQ 580 78 2.21 2200 151.68 A3 580 29 0.82 2200 151.68 K 580 199 5.64 2000 137.90 Q 580 67 1.90 2000 137.90 G 580 34 0.96 2000 137.90 1.0-50% HE ARR4 ST AS 580 135 3.82 2000 137.90 AQ 580 78 2.21 2200 151.68 A3 580 29 0.82 2200 151.68 K 580 199 5.64 2000 137.90 Q 580 67 1.90 2000 137.90 G 580 34 0.96 2000 137.90

Hydrogen 1-9.9 ppm HY ARR1 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 10-999 ppm HY ARR2 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 G 350 33 0.93 2000 137.90 1000-9999 ppm HY ARR3 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 G 350 33 0.93 2000 137.90 1.0-50% HY ARR4 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 G 350 33 0.93 2000 137.90

(1) For concentrations above 50%, MSDS for inverse mixture applies (i.e. Helium in Argon).

* KeyforPraxairGrades (Refer to D1 for complete specification details). ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).

When ordering, combine the Reference Number with the Grade and Cylinder Style identification to obtain the complete part number. Please also specify the desired concentration.


Mixtures

Argon

NI ARR1P-AS

Reference Number

Praxair Grade

Cylinder Style

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ft3 m3 psig bar

Nitrogen 1-9.9ppm NIARR1 ST AS 580 142 4.02 2000 137.90 AQ 580 82 2.32 2200 151.68 A3 580 31 0.88 2200 151.68 10-999ppm NIARR2 ST AS 580 142 4.02 2000 137.90 AQ 580 82 2.32 2200 151.68 A3 580 31 0.88 2200 151.68 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90 1000-9999ppm NIARR3 ST AS 580 142 4.02 2000 137.90 AQ 580 82 2.32 2200 151.68 A3 580 31 0.88 2200 151.68 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90 1.0-50% NIARR4 ST AS 580 142 4.02 2000 137.90 AQ 580 82 2.32 2200 151.68 A3 580 31 0.88 2200 151.68 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90

(1) Forconcentrationsabove50%,MSDSforinversemixtureapplies(i.e.HeliuminArgon).

* Key for Praxair Grades (Refer to D1 for complete specification details). ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).

When ordering, combine the Reference Number with the Grade and Cylinder Style identification toobtainthecompletepartnumber.Please also specify the desired concentration.

4032 Series Critical Purity Regulators for Corrosive Service (see page F7)


Mixtures

Benzene

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Air 0.5ppm-1000ppm P-18-0082

Nitrogen 0.5ppm-1000ppm P-18-0119

Regulator Page

Recommendations



Line PRS40052001-CGA F6

AI BZR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 0.5-9.9ppm AIBZR1 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 10-1000ppm(1) AIBZR2 ST AS 590 132 3.74 2000 137.90 AQ 590 70 1.98 2200 151.68 A3 590 26 0.74 2200 151.68

Nitrogen 0.5-9.9ppm NIBZR1 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-1000ppm(1) NIBZR2 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68

(1) Cylinderpressureandcontentswillvaryproportionatelyathigherconcentrations.






Mixtures


Air 0.5ppm-9500ppm P-18-0090

Helium 0.5ppm-50% P-18-0134 .5ppm-3.8% P-18-0452 3.81-50%

Nitrogen 0.5ppm-50% P-18-0076 1ppm-4.6% P-18-0453 4.61-50%

Butane

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Regulator Page

Recommendations



Line PRS40052001-000 F6


ft3 m3 psig bar

Air 0.5-9.9ppm AIBUR1 ST AS 590 146 4.13 2000 137.90 AQ 590 77 2.18 2200 151.68 A3 590 29 0.82 2200 151.68 10-999ppm AIBUR2 ST AS 590 146 4.13 2000 137.90 AQ 590 77 2.18 2200 151.68 A3 590 29 0.82 2200 151.68 1000-9500ppm(1) AIBUR3 ST AS 590 146 4.13 2000 137.90 AQ 590 77 2.18 2200 151.68 L.E.L.1.9% A3 590 29 0.82 2200 151.68

Helium 0.5-9.9ppm HEBUR1 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 10-999ppm HEBUR2 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 1000-9999ppm HEBUR3 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 1.0-3.8%(1) HEBUR4 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90 3.81-50%(1) HEBUR5 ST AS 350 55 1.56 776 53.50 AQ 350 29 0.82 776 53.50 A3 350 11 0.31 776 53.50 K 350 81 2.29 776 53.50 Q 350 27 0.76 776 53.50 G 350 14 0.40 776 53.50



Mixtures

Butane

D

13NI BUR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Nitrogen 0.5-9.9ppm NIBUR1 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-999ppm NIBUR2 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 1000-9999ppm(1) NIBUR3 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 1.0-4.6%(1) NIBUR4 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 G 350 35 0.99 2000 137.90 4.61-50%(1) NIBUR5 ST AS 350 39 1.10 525 36.20 AQ 350 21 0.59 525 36.20 A3 350 8 0.23 525 36.20 K 350 58 1.64 525 36.20 Q 350 19 0.54 525 36.20 G 350 10 0.28 525 36.20







Mixtures

Carbon Dioxide

D

14


Air 0.5ppm-50% P-18-0012 .5ppm-50%

Argon 0.5ppm-50% P-18-0332 .5ppm-50%

Helium 0.5ppm-50% P-18-0104 .5ppm-50%

Hydrogen 0.5ppm-50% P-18-0102 .5ppm-50%

Nitrogen 0.5ppm-50% P-18-0156 .5ppm-50%

Regulator Page

Recommendations



Line PRS40052001-000 F6


ft3 m3 psig bar

Air 0.5-9.9ppm AICDR1 ST AS 590 146 4.13 2000 137.90 AQ 590 85 2.41 2200 151.68 A3 590 32 0.91 2200 151.68 10-2999ppm AICDR2 ST AS 590 146 4.13 2000 137.90 AQ 590 85 2.41 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 216 6.12 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 37 1.05 2000 137.90 3000-9999ppm AICDR3 EV(1),ST AS 590 146 4.13 2000 137.90 AQ 590 85 2.41 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 216 6.12 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 37 1.05 2000 137.90 1-50% AICDR4 EV(1),ST AS 590 146 4.13 2000 137.90 AQ 590 85 2.41 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 216 6.12 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 37 1.05 2000 137.90

Argon 0.5-9.9ppm ARCDR1 ST AS 580 153 4.33 2000 137.90 AQ 580 89 2.52 2200 151.68 A3 580 33 0.93 2200 151.68 10-2999ppm ARCDR2 ST AS 580 153 4.33 2000 137.90 AQ 580 89 2.52 2200 151.68 A3 580 33 0.93 2200 151.68 K 580 226 6.40 2000 137.90 Q 580 76 2.15 2000 137.90 G 580 38 1.08 2000 137.90 3000-9999ppm ARCDR3 ST AS 580 153 4.33 2000 137.90 AQ 580 89 2.52 2200 151.68 A3 580 33 0.93 2200 151.68 K 580 226 6.40 2000 137.90 Q 580 76 2.15 2000 137.90 G 580 38 1.08 2000 137.90 1-50% ARCDR4 ST AS 580 153 4.33 2000 137.90 AQ 580 89 2.52 2200 151.68 A3 580 33 0.93 2200 151.68 K 580 226 6.40 2000 137.90 Q 580 76 2.15 2000 137.90 G 580 38 1.08 2000 137.90

Helium 0.5-9.9ppm HECDR1 ST AS 580 135 3.82 2000 137.90 AQ 580 78 2.21 2200 151.68 A3 580 29 0.82 2200 151.68 10-2999ppm HECDR2 ST AS 580 135 3.82 2000 137.90 AQ 580 78 2.21 2200 151.68 A3 580 29 0.82 2200 151.68 K 580 199 5.64 2000 137.90 Q 580 67 1.90 2000 137.90 G 580 34 0.96 2000 137.90

(1) Environmentalgradesavailable0.3%to50%inAirorNitrogenbalanceonly.


Mixtures

Carbon Dioxide

D

15

HE CDR3P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Helium, 3000-9999ppm HECDR3 ST AS 580 135 3.82 2000 137.90continued AQ 580 78 2.21 2200 151.68 A3 580 29 0.82 2200 151.68 K 580 199 5.64 2000 137.90 Q 580 67 1.90 2000 137.90 G 580 34 0.96 2000 137.90 1-50% HECDR4 ST AS 580 135 3.82 2000 137.90 AQ 580 78 2.21 2200 151.68 A3 580 29 0.82 2200 151.68 K 580 199 5.64 2000 137.90 Q 580 67 1.90 2000 137.90 G 580 34 0.96 2000 137.90

Hydrogen 0.5-9.9ppm HYCDR1 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 10-2999ppm HYCDR2 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 G 350 33 0.93 2000 137.90 3000-9999ppm HYCDR3 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 G 350 33 0.93 2000 137.90 1-50% HYCDR4 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 G 350 33 0.93 2000 137.90

Nitrogen 0.5-9.9ppm NICDR1 ST AS 580 142 4.02 2000 137.90 AQ 580 82 2.32 2200 151.68 A3 580 31 0.88 2200 151.68 10-2999ppm NICDR2 ST AS 580 142 4.02 2000 137.90 AQ 580 82 2.32 2200 151.68 A3 580 31 0.88 2200 151.68 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90 3000-9999ppm NICDR3 EV(1),ST AS 580 142 4.02 2000 137.90 AQ 580 82 2.32 2200 151.68 A3 580 31 0.88 2200 151.68 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90 1-50% NICDR4 EV(1),ST AS 580 142 4.02 2000 137.90 AQ 580 82 2.32 2200 151.68 A3 580 31 0.88 2200 151.68 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90

(1)Environmentalgradesavailable0.3%to50%inAirorNitrogenbalanceonly.

* Key for Praxair Grades (Refer to D1 for complete specification details). EV EnvironmentalgradesincludeEPA(E),PrimaryMaster(N), Certified Master (M), DynamicBlendMaster(D)andDynamicBlendStandard(Y). ST StandardgradesincludePrimary(P), Certified (C), Non-Certified (U)andCustom(Z).

Whenordering,combinetheReferenceNumberwith the Grade and Cylinder Style identification toobtainthecompletepartnumber.Pleasealsospecifythedesiredconcentration.


Mixtures

Carbon Monoxide

D

16

Regulator Page

Recommendations



Line PRS40052001-000 F6

Balance Range MSDS(1) MSDS Gases Range

Air 0.5ppm-6% P-18-0016

Argon 0.5ppm-99% P-18-0073 0.5ppm-11.1% P-18-0454 11.2-50%

Helium 0.5ppm-99% P-18-0074 0.5ppm-14.3% P-18-0455 14.31-50%

Hydrogen 0.5ppm-99% P-18-0115 0.5ppm-50%(1)

Nitrogen 0.5ppm-99% P-18-0160 0.5ppm-20% P-18-0456 20.1-50%

Balance Concentration Reference Praxair Cylinder CGA Contents Pressure Gas Range Number Grades Style

ft3 m3 psig bar

Air 0.5-9.9ppm AICOR1 EV(2),ST AS 590 146 4.13 2000 137.90 AQ 590 85 2.41 2200 151.68 A3 590 32 0.91 2200 151.68 10-999ppm AICOR2 EV(2),ST AS 590 146 4.13 2000 137.90 AQ 590 85 2.41 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 216 6.12 2000 137.90 Q 590 72 2.04 2000 137.90 1000-9999ppm AICOR3 EV(2),ST AS 590 146 4.13 2000 137.90 AQ 590 85 2.41 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 216 6.12 2000 137.90 Q 590 72 2.04 2000 137.90 1-6% AICOR4 EV(2),ST AS 590 146 4.13 2000 137.90 AQ 590 85 2.41 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 216 6.12 2000 137.90 L.E.L.12% Q 590 72 2.04 2000 137.90

Argon 0.5-9.9ppm ARCOR1 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 10-999ppm ARCOR2 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 K 350 226 6.40 2000 137.90 Q 350 76 2.15 2000 137.90 1000-9999ppm ARCOR3 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 K 350 226 6.40 2000 137.90 Q 350 76 2.15 2000 137.90 1.0-11.10% ARCOR4 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 K 350 226 6.40 2000 137.90 Q 350 76 2.15 2000 137.90 11.2-50% ARCOR5 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 K 350 186 5.27 1600 114.45 Q 350 62 1.76 1600 114.45

(1) Forconcentrationsabove50%,MSDSforinversemixtureapplies(i.e.ArgoninCarbonMonoxide).

(2) Environmentalgradesavailable5ppmto50%inAirorNitrogenbalanceonly.


Mixtures

Carbon Monoxide

D

17

HE COR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Helium 0.5-9.9ppm HECOR1 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 10-999ppm HECOR2 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 1000-9999ppm HECOR3 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 1.0-14.3% HECOR4 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 14.31-50% HECOR5 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 167 4.73 1600 114.45 Q 350 56 1.59 1600 114.45

Hydrogen 0.5-9.9ppm HYCOR1 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 10-999ppm HYCOR2 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 1000-9999ppm HYCOR3 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 1-50% HYCOR4 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 167 4.73 1600 114.45 Q 350 56 1.59 1600 114.45

*Key for Praxair Grades (Refer to D1 for complete specification details). EV Environmental grades include EPA (E), Primary Master (N), Certified Master (M), Dynamic Blend Master (D) and Dynamic Blend Standard (Y).ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).



Mixtures

Carbon Monoxide

D

18

NI COR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Nitrogen 0.5-9.9ppm NICOR1 EV(2),ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-999ppm NICOR2 EV(2),ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 1000-9999ppm NICOR3 EV(2),ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 1.0-20% NICOR4 EV(2),ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 20.1-50% NICOR5 EV(2),ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 176 4.98 1660 114.45 Q 350 59 1.67 1660 114.45

(2) Environmentalgradesavailable5ppmto50%inAirorNitrogenbalanceonly.

* Key for Praxair Grades (Refer to D1 for complete specification details). EV EnvironmentalgradesincludeEPA(E),PrimaryMaster(N), Certified Master (M), DynamicBlendMaster(D)andDynamicBlendStandard(Y). ST StandardgradesincludePrimary(P), Certified (C), Non-Certified (U)andCustom(Z).


4032 Series Critical Purity Regulators for Corrosive Service (see page F7)


Mixtures

Carbonyl Sulfide

D

19


Helium 95ppb-5000ppm P-18-0071

Nitrogen 95ppb-5000ppm P-18-0064

Regulator Page

Recommendations



Line PRS40252001-000 F9

HE CSR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Helium 95ppb-9.9ppm HECSR1 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 10-999ppm HECSR2 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 1000-5000ppm HECSR3 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68

Nitrogen 95ppb-9.9ppm NICSR1 ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68 10-999ppm NICSR2 ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68 1000-5000ppm NICSR3 ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68

*Key for Praxair Grades (Refer to D1 for complete specification details).ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).



Mixtures

Dimethyl Disulfide

D

20


Helium 0.5-2000ppm P-18-0061

Nitrogen 0.5-2000ppm P-18-0065

Regulator Page

Recommendations



Line PRS40252001-000 F9

HE DPR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Helium 0.5-9.9ppm HEDPR1 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 10-999ppm HEDPR2 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 1000-2000ppm HEDPR3 ST AS 330 30 0.85 406 27.99 AQ 330 16 0.45 406 27.99 A3 330 6 0.17 406 27.99

Nitrogen 0.5-9.9ppm NIDPR1 ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68 10-999ppm NIDPR2 ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68 1000-2000ppm NIDPR3 ST AS 330 30 0.85 406 27.99 AQ 330 16 0.45 406 27.99 A3 330 6 0.17 406 27.99

*Key for Praxair Grades (Refer to D1 for complete specification details). ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).



Mixtures

Dimethyl Sulfide

D

21


Helium 100ppb-5000ppm P-18-0062

Nitrogen 100ppb-5000ppm P-18-0066

Regulator Page

Recommendations



Line PRS40252001-000 F9

HE DYR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Helium 100ppb-9.9ppm HEDYR1 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 10-999ppm HEDYR2 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 1000-5000ppm HEDYR3 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68

Nitrogen 100ppb-9.9ppm NIDYR1 ST AS 330 142 3.99 2000 137.90 AQ 330 82 2.12 2200 151.68 A3 330 31 0.79 2200 151.68 10-999ppm NIDYR2 ST AS 330 142 3.99 2000 137.90 AQ 330 82 2.12 2200 151.68 A3 330 31 0.79 2200 151.68 1000-5000ppm NIDYR3 ST AS 330 142 3.99 2000 137.90 AQ 330 82 2.12 2200 151.68 A3 330 31 0.79 2200 151.68




Mixtures

Ethane

D

22

Regulator Page

Recommendations



Line PRS40052001-000 F6


Air 1 ppm - 1.5% P-18-0093

Helium 1 ppm - 50% P-18-0112 1 ppm - 8.4% P-18-0130 8.41 - 50%

Nitrogen 1 ppm - 50% P-18-0099 1 ppm-12% P-18-0459 12.1 - 50%

AIETR1P-AS

Praxair Grade

Reference Number Cylinder Style


ft3 m3 psig bar

Air 1-9.9 ppm AI ETR1 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 10-999 ppm AI ETR2 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 1000-9999 ppm AI ETR3 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 1-1.5%(1) AI ETR4 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 L.E.L. 3.0% Q 590 72 2.04 2000 137.90

Helium 1-9.9 ppm HE ETR1 ST AS 350 134 3.79 2000 137.90 K 350 198 5.61 2000 137.90 Q 350 66 1.87 2000 137.90 10-999 ppm HE ETR2 ST AS 350 134 3.79 2000 137.90 K 350 198 5.61 2000 137.90 Q 350 66 1.87 2000 137.90 1000-9999 ppm HE ETR3 ST AS 350 134 3.79 2000 137.90 K 350 198 5.61 2000 137.90 Q 350 66 1.87 2000 137.90 1.0-8.4 % HE ETR4 ST AS 350 134 3.79 2000 137.90 K 350 198 5.61 2000 137.90 Q 350 66 1.87 2000 137.90 8.41-50%(1) HE ETR5 ST AS 350 134 3.79 2000 137.90 K 350 198 5.61 2000 137.90 Q 350 66 1.87 2000 137.90

Nitrogen 1-9.9 ppm NI ETR1 ST AS 350 149 4.22 2000 137.90 K 350 221 6.26 2000 137.90 Q 350 74 2.10 2000 137.90 10-999 ppm NI ETR2 ST AS 350 149 4.22 2000 137.90 K 350 221 6.26 2000 137.90 Q 350 74 2.10 2000 137.90 1000-9999 ppm NI ETR3 ST AS 350 149 4.22 2000 137.90 K 350 221 6.26 2000 137.90 Q 350 74 2.10 2000 137.90 1-12% NI ETR4 ST AS 350 149 4.22 2000 137.90 K 350 221 6.26 2000 137.90 Q 350 74 2.10 2000 137.96 12.1-50%(1) NI ETR5 ST AS 350 149 4.22 2000 137.90 K 350 221 6.26 2000 137.90 Q 350 74 2.10 2000 137.96

(1) Cylinder pressure and contents will vary proportionately at higher concentrations.

* KeyforPraxairGrades(Refer to D1 for complete specification details). ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).



Mixtures

Ethanol

D

23

Regulator Page

Recommendations



Line PRS40052001-000 F6


Air 1 ppm - 1000 ppm P-18-0460

Helium 1 ppm - 1000 ppm P-18-0461

Nitrogen 1 ppm - 1000 ppm P-18-0095

AIELR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9 ppm AI ELR1 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 10-1000 ppm(1) AI ELR2 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68

Helium 1-9.9 ppm HE ELR1 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 10-1000 ppm(1) HE ELR2 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68

Nitrogen 1-9.9 ppm NI ELR1 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-1000 ppm(1) NI ELR2 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68



When ordering, combine the Reference Number

with the Grade and Cylinder Style identification to obtain the complete part number.

Please also specify the desired concentration.


Mixtures

Ethylene

D

24


Air 1ppm-1.35% P-18-0094-A

Helium 1ppm-50% P-18-0109 1ppm-4.1% P-18-0132-A 4.11-50%

Nitrogen 1ppm-50% P-18-0462 1ppm-6.0% P-18-0462 6.1-50%

Regulator Page

Recommendations

SingleStage PRS40023331-CGAF5


Line PRS40052001-000 F6

AI EYR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9ppm AIEYR1 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 10-999ppm AIEYR2 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 1000-9999ppm AIEYR3 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 1.0-1.35% AIEYR4 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 L.E.L.2.7% Q 590 72 2.04 2000 137.90

Helium 1-9.9ppm HEEYR1 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 66 1.87 2000 137.90 10-999ppm HEEYR2 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 66 1.87 2000 137.90 1000-9999ppm HEEYR3 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 66 1.87 2000 137.90 1-4.10% HEEYR4 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 66 1.87 2000 137.90 4.11-50%(1) HEEYR5 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 66 1.87 2000 137.90

Nitrogen 1-9.9ppm NIEYR1 ST AS 350 145 4.11 2000 137.90 K 350 214 6.06 2000 137.90 Q 350 71 2.01 2000 137.90 10-999ppm NIEYR2 ST AS 350 145 4.11 2000 137.90 K 350 214 6.06 2000 137.90 Q 350 71 2.01 2000 137.90 1000-9999ppm NIEYR3 ST AS 350 145 4.11 2000 137.90 K 350 214 6.06 2000 137.90 Q 350 71 2.01 2000 137.90 1-6% NIEYR4 ST AS 350 145 4.11 2000 137.90 K 350 214 6.06 2000 137.90 Q 350 71 2.01 2000 137.90 6.1-50%(1) NIEYR5 ST AS 350 145 4.11 2000 137.90 K 350 214 6.06 2000 137.90 Q 350 71 2.01 2000 137.90


* Key for Praxair Grades (Refer to D1 for complete specification details). ST StandardgradesincludePrimary(P), Certified (C), Non-Certified (U)andCustom(Z).



Mixtures

Ethylene Oxide

D

25

Regulator Page

Recommendations



Line PRS40052001-000 F6


Air 1 ppm - 1.5% P-18-0464

Nitrogen 1 ppm - 20% P-18-0100 1 ppm - 3.7%

P-18-0545 3.71 - 20%

AI EOR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9 ppm AI EOR1 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 10-999 ppm AI EOR2 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 1000-9999 ppm AI EOR3 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 1.0-1.5%(1) AI EOR4 ST AS 590 146 4.13 2000 137.90 AQ 590 82 2.32 2200 151.68 L.E.L 3% A3 590 31 0.88 2200 151.68

Nitrogen 1-9.9 ppm NI EOR1 ST AS 350 143 4.05 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-999 ppm NI EOR2 ST AS 350 143 4.05 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 1000-9999 ppm NI EOR3 ST AS 350 143 4.05 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 1-20%(1) NI EOR4 ST AS 350 143 4.05 2000 137.90 AQ 350 79 2.24 2200 151.68 A3 350 30 0.85 2200 151.68

(1) Cylinder pressure and contents will vary proportionately at higher concentrations. For sterilant mixtures, see page E29.



www.praxair.com/specialtygases

Mixtures

1-877-PRAXAIR

Halocarbon 14

D

26


Air 1ppm-1% P-18-1021


Regulator Page

Recommendations



Line PRS40052001-000 F6

AI HA14R1P-K

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9ppm AIHA14R1 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 10-999ppm AIHA14R2 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 1000ppm-1% AIHA14R3 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90

Nitrogen 1-9.9ppm NIHA14R1 ST K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 36 1.02 2000 137.90 10-999ppm NIHA14R2 ST K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 36 1.02 2000 137.90 1000ppm-1% NIHA14R3 ST K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 36 1.02 2000 137.90

*Key for Praxair Grades (Refer to D1 for complete specification details). ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).



Mixtures

Halocarbon 22

D

27


Air 1ppm-50% P-18-0465


Regulator Page

Recommendations



Line PRS40052001-000 F6

AI HA22R1P-K

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9ppm AIHA22R1 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 10-999ppm AIHA22R2 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 1000-9999ppm AIHA22R3 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 1-50% AIHA22R4 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90

Nitrogen 1-9.9ppm NIHA22R1 ST K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 36 1.02 2000 137.90 10-999ppm NIHA22R2 ST K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 36 1.02 2000 137.90 1000ppm-1% NIHA22R3 ST K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 36 1.02 2000 137.90 1-50% NIHA22R4 ST K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 36 1.02 2000 137.90




Mixtures

1-877-PRAXAIR

Helium

D

28

Regulator Page

Recommendations

Single Stage PRS40023331-580 F5

Two Stage PRS40123331-580 F4

Line PRS40052001-000 F6


Argon 10 ppm - 99.999% P-18-0345 1ppm - 50%(1)

Nitrogen 10 ppm - 99.999% P-18-0124 1ppm - 50%(1)

ARHER2P-AS

Reference Number

Praxair Grade

Cylinder Style

Balance Concentration Reference Praxair Cylinder CGA Contents PressureGas Range Number Grades Style

ft3 m3 psig bar

Argon 10-999 ppm AR HER2 ST AS 580 153 4.33 2000 137.90 K 580 226 6.40 2000 137.90 Q 580 75 2.12 2000 137.90 G 580 38 1.08 2000 137.90 1000-4999 ppm AR HER3 ST AS 580 153 4.33 2000 137.90 K 580 226 6.40 2000 137.90 Q 580 75 2.12 2000 137.90 G 580 38 1.08 2000 137.90 5000-9999 ppm AR HER4 ST AS 580 153 4.33 2000 137.90 K 580 226 6.40 2000 137.90 Q 580 75 2.12 2000 137.90 G 580 38 1.08 2000 137.90 1-50% AR HER5 ST AS 580 153 4.33 2000 137.90 K 580 226 6.40 2000 137.90 Q 580 75 2.12 2000 137.90 G 580 38 1.08 2000 137.90

Nitrogen 10-999 ppm NI HER2 ST AS 580 142 4.02 2000 137.90 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 5.92 2000 137.90 1000-4999 ppm NI HER3 ST AS 580 142 4.02 2000 137.90 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90 5000-9999 ppm NI HER4 ST AS 580 142 4.02 2000 137.90 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90 1-50% NI HER5 ST AS 580 142 4.02 2000 137.90 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90

(1) For concentrations above 50%, MSDS for inverse mixture applies (i.e. Argon in Helium).

* KeyforPraxairGrades(Refer to D1 for complete specification details) ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).

When ordering, combine the Reference Number with the Grade and Cylinder Style identification to obtain the complete part number.



Mixtures

Hexane

D

29

Regulator Page

Recommendations



Line PRS40052001-000 F6


Air 0.25 ppm - 5000 ppm P-18-0088

Helium 0.25 ppm - 5000 ppm P-18-0397

Nitrogen 0.25 ppm - 5000 ppm P-18-0122

AIHXR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 0.25-9.9 ppm AI HXR1 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 10-999 ppm AI HXR2 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 1000-5000 ppm(1) AI HXR3 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 L.E.L. 1.1% A3 590 32 0.91 2200 151.68

Helium 0.25-9.9 ppm HE HXR1 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 10-999 ppm HE HXR2 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 1000-5000 ppm(1) HE HXR3 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68

Nitrogen 0.25-9.9 ppm NI HXR1 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-999 ppm NI HXR2 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 1000-5000 ppm(1) NI HXR3 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68







Mixtures

1-877-PRAXAIR

D

30

Hydrogen


Air 1ppm-2% P-18-0015

Argon 1ppm-99.999% P-18-0331 1ppm-2.9% P-18-0337 2.91-50%(1)

Helium 1ppm-99.999% P-18-0113 1ppm-3.9% P-18-0125 3.91-50%(1)

Nitrogen 1ppm-99.999% P-18-0111 1ppm-5.7% P-18-0250 5.71-50%(1)

Regulator Page

Recommendations

SingleStage PRS40023331-CGAF5


Line PRS40052001-000 F6

AI HYR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9ppm AIHYR1 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 10-999ppm AIHYR2 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 1000-9999ppm AIHYR3 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 1-2% AIHYR4 ST K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 L.E.L.4.0% G 590 36 1.02 2000 137.90

Argon 1-9.9ppm ARHYR1 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 10-999ppm ARHYR2 ST K 350 226 6.40 2000 137.90 Q 350 75 2.12 2000 137.90 G 350 38 1.08 2000 137.90 1000-9999ppm ARHYR3 ST K 350 226 6.40 2000 137.90 Q 350 75 2.12 2000 137.90 G 350 38 1.08 2000 137.90 1.0-2.9% ARHYR4 ST K 350 226 6.40 2000 137.90 Q 350 75 2.12 2000 137.90 G 350 38 1.08 2000 137.90 2.91-50% ARHYR5 ST K 350 226 6.40 2000 137.90 Q 350 75 2.12 2000 137.90 G 350 38 1.08 2000 137.90

(1)Forconcentrationsabove50%,MSDSforinversemixtureapplies(i.e.ArgoninHydrogen).

* Key for Praxair Grades (Refer to D1 for complete specification details). ST StandardgradesincludePrimary(P), Certified (C), Non-Certified (U)andCustom(Z).





Mixtures

D

31

Hydrogen

HE HYR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Helium 1-9.9ppm HEHYR1 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 10-999ppm HEHYR2 ST K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90 1000-9999ppm HEHYR3 ST K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90 1.0-3.9% HEHYR4 ST K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90 3.91-50% HEHYR5 ST K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90

Nitrogen 1-9.9ppm NIHYR1 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-999ppm NIHYR2 ST K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 G 350 35 0.99 2000 137.90 1000-9999ppm NIHYR3 ST K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 G 350 35 0.99 2000 137.90 1.0-5.7% NIHYR4 ST K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 G 350 35 0.99 2000 137.90 5.71-50% NIHYR5 ST K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 G 350 35 0.99 2000 137.90




Mixtures

1-877-PRAXAIR

Hydrogen Sulfide

D

32

Regulator Page

Recommendations



Line PRS40252001-000 F9


Air 0.5 ppm - 2.15% P-18-0135

Helium 0.5 ppm - 5.0 % P-18-0068 0.5 ppm - 4.6% P-18-0468 4.61 - 5.0%

Hydrogen 0.5 ppm - 5.0 % P-18-0333

Methane 0.5 ppm - 5.0 % P-18-0123

Nitrogen 0.5 ppm - 10.0 % P-18-0105 0.5 ppm - 6.7% P-18-0469 6.71 - 10.0%


ft3 m3 psig bar

Air 0.5-9.9 ppm AI HSR1 EV(1) ST AS 330 146 4.13 2000 137.90 AQ 330 84 2.38 2200 151.68 A3 330 32 0.91 2200 151.68 10-999 ppm AI HSR2 EV(1) ST AS 330 146 4.13 2000 137.90 AQ 330 84 2.38 2200 151.68 A3 330 32 0.91 2200 151.68 1000-9999 ppm AI HSR3 ST AS 330 146 4.13 2000 137.90 AQ 330 84 2.38 2200 151.68 A3 330 32 0.91 2200 151.68 1-2.15% AI HSR4 ST AS 330 146 4.13 2000 137.90 AQ 330 84 2.38 2200 151.68 L.E.L. 4.3% A3 330 32 0.91 2200 151.68

Helium 0.5-9.9 ppm HE HSR1 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 10-999 ppm HE HSR2 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 1000-9999 ppm HE HSR3 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68(1) Environmental grades available 4 ppm to 300 ppm in Air and Nitrogen balance only.

Analytical uncertainties may vary depending on available NIST standards.


Mixtures

D

33

Hydrogen Sulfide

HE HSR4P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Helium, 1.0-4.6% HEHSR4 ST AS 330 135 3.82 2000 137.90continued AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68 4.61-5.0% HEHSR5 ST AS 330 135 3.82 2000 137.90 AQ 330 78 2.21 2200 151.68 A3 330 29 0.82 2200 151.68

Hydrogen 0.5-9.9ppm HYHSR1 ST AS 330 133 3.77 2000 137.90 AQ 330 77 2.18 2200 151.68 A3 330 29 0.82 2200 151.68 10-999ppm HYHSR2 ST AS 330 133 3.77 2000 137.90 AQ 330 77 2.18 2200 151.68 A3 330 29 0.82 2200 151.68 1000-9999ppm HYHSR3 ST AS 330 133 3.77 2000 137.90 AQ 330 77 2.18 2200 151.68 A3 330 26 0.82 2200 151.68 1-5% HYHSR4 ST AS 330 133 3.77 2000 137.90 AQ 330 77 2.18 2200 151.68 A3 330 29 0.82 2200 151.68

Methane 0.5-9.9ppm MEHSR1 ST AS 330 173 4.90 2000 137.90 AQ 330 100 2.83 2200 151.68 A3 330 38 1.08 2200 151.68 10-999ppm MEHSR2 ST AS 330 173 4.90 2000 137.90 AQ 330 100 2.83 2200 151.68 A3 330 38 1.08 2200 151.68




Mixtures

1-877-PRAXAIR

D

34

Hydrogen Sulfide

ME HSR3P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Methane, 1000-9999ppm MEHSR3 ST AS 330 173 4.90 2000 137.90continued AQ 330 100 2.83 2200 151.68 A3 330 38 1.08 2200 151.68 1-5% MEHSR4 ST AS 330 173 4.90 2000 137.90 AQ 330 100 2.83 2200 151.68 A3 330 38 1.08 2200 151.68

Nitrogen 0.5-9.9ppm NIHSR1 EV(1)ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68 10-999ppm NIHSR2 EV(1)ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68 1000-9999ppm NIHSR3 ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68 1-6.7%(2) NIHSR4 ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68 6.71%-10%(2) NIHSR5 ST AS 330 142 4.02 2000 137.90 AQ 330 82 2.32 2200 151.68 A3 330 31 0.88 2200 151.68

(1) Environmentalgradesavailable4ppmto300ppminAirandNitrogenbalanceonly.


* Key for Praxair Grades (Refer to D1 for complete specification details). EV EnvironmentalgradesincludeEPA(E),PrimaryMaster(N), Certified Master (M), ST StandardgradesincludePrimary(P), Certified (C), Non-Certified (U)andCustom(Z).





Mixtures

Isobutane

D

35

Regulator Page

Recommendations



Line PRS40052001-000 F6


Air 1 ppm - 5000 ppm P-18-0089

Helium 1 ppm - 5000 ppm P-18-0096


AIISR2P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9 ppm AI ISR1 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 10-999 ppm AI ISR2 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 1000-5000 ppm(1) AI ISR3 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 L.E.L. 1.8% Q 590 72 2.04 2000 137.90

Helium 1-9.9 ppm HE ISR1 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 10-999 ppm HE ISR2 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 1000-5000 ppm(1) HE ISR3 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90

Nitrogen 1-9.9 ppm NI ISR1 ST AS 350 142 4.02 2000 137.90 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 10-999 ppm NI ISR2 ST AS 350 142 4.02 2000 137.90 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 1000-5000 ppm(1) NI ISR3 ST AS 350 142 4.02 2000 137.90 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90







Mixtures

1-877-PRAXAIR

Isobutylene

D

36

Regulator Page

Recommendations



Line PRS40052001-000 F6


Air 1 ppm -5000 ppm P-18-0357

Helium 1 ppm -5000 ppm P-18-0471

Nitrogen 1 ppm -5000 ppm P-18-0472

AIIYR2P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9 ppm AI IYR1 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 10-999 ppm AI IYR2 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 1000-5000 ppm(1) AI IYR3 ST AS 590 146 4.13 2000 137.90 K 590 215 6.09 2000 137.90 L.E.L. 1.8% Q 590 72 2.04 2000 137.90

Helium 1-9.9 ppm HE IYR1 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 10-999 ppm HE IYR2 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 1000-5000 ppm(1) HE IYR3 ST AS 350 135 3.82 2000 137.90 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90

Nitrogen 1-9.9 ppm NI IYR1 ST AS 350 142 4.02 2000 137.90 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 10-999 ppm NI IYR2 ST AS 350 142 4.02 2000 137.90 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 1000-5000 ppm(1) NI IYR3 ST AS 350 142 4.02 2000 137.90 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90







Mixtures

Krypton

D

37


Argon 50 ppm - 99.9% P-18-0473 1 ppm - 50%(1)

Helium 50 ppm - 99.9% P-18-0474 1 ppm - 50%(1)

Nitrogen 50 ppm - 99.9% P-18-0475 1 ppm - 50%(1)

Regulator Page

Recommendations



Line PRS40052001-000 F6

AR KRR3P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig barArgon 50-999 ppm AR KRR2 ST AS 580 153 4.33 2000 137.90 K 580 226 6.40 2000 137.90 Q 580 75 2.12 2000 137.90 G 580 38 1.08 2000 137.90 1000-9999 ppm AR KRR3 ST AS 580 153 4.33 2000 137.90 K 580 226 6.40 2000 137.90 Q 580 75 2.12 2000 137.90 G 580 38 1.08 2000 137.90 1-99.9% (2) ST AS 580 153 4.33 2000 137.90 K 580 226 6.40 2000 137.90 Q 580 75 2.12 2000 137.90 G 580 38 1.08 2000 137.90

Helium 50-999 ppm HE KRR2 ST AS 580 137 3.88 2000 137.90 K 580 203 5.75 2000 137.90 Q 580 68 1.93 2000 137.90 G 580 34 0.96 2000 137.90 1000-9999 ppm HE KRR3 ST AS 580 137 3.88 2000 137.90 K 580 203 5.75 2000 137.90 Q 580 68 1.93 2000 137.90 G 580 34 0.96 2000 137.90 1-99.9% (2) ST AS 580 137 3.88 2000 137.90 K 580 203 5.75 2000 137.90 Q 580 68 1.93 2000 137.90 G 580 34 0.96 2000 137.90

Nitrogen 50-999 ppm NI KRR2 ST AS 580 142 4.02 2000 137.90 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90 1000-9999 ppm NI KRR3 ST AS 580 142 4.02 2000 137.90 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90 1-99.9% (2) ST AS 580 142 4.02 2000 137.90 K 580 209 5.92 2000 137.90 Q 580 70 1.98 2000 137.90 G 580 35 0.99 2000 137.90

(1) For concentrations above 50%, MSDS for inverse mixture applies (i.e. Argon in Krypton). (2) Range part numbers not available for concentrations >1%. Contact your Praxair representative for specific part number.




Mixtures

Methane

D

38


Air 0.5ppm-2.5% P-18-0101

Argon 0.5ppm-99.5% P-18-0097 1ppm-10% P-18-0128 10.1-50%(1)

Helium 0.5ppm-99.5% P-18-0098 1ppm-10.1% P-18-0129 10.2-50%(1)

Hydrogen 0.5ppm-99.5% P-18-0116 1ppm-50%(1)

Nitrogen 0.5ppm-99.5% P-18-0110 1ppm-14.3% P-18-0506 14.31-50%(1)

Regulator Page

Recommendations



Line PRS40052001-000 F6


ft3 m3 psig bar

Air 0.5-9.9ppm AIMER1 EV(2),ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 10-999ppm AIMER2 EV(2),ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 1000-9999ppm AIMER3 EV(2),ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 G 590 36 1.02 2000 137.90 1-2.5% AIMER4 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 K 590 215 6.09 2000 137.90 Q 590 72 2.04 2000 137.90 L.E.L.5.0% G 590 36 1.02 2000 137.90

Argon 0.5-9.9ppm ARMER1 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 10-999ppm ARMER2 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 K 350 226 6.40 2000 137.90 Q 350 75 2.12 2000 137.90 G 350 38 1.08 2000 137.90 1000-9999ppm ARMER3 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 K 350 226 6.40 2000 137.90 Q 350 75 2.12 2000 137.90 G 350 38 1.08 2000 137.90(1) Forconcentrationsabove50%,MSDSforinversemixtureapplies(i.e.ArgoninMethane).(2) Environmentalgradesavailable1ppmto1000ppminAirandNitrogenbalanceonly.


Mixtures

Methane

D

39

AR MER4P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Argon, 1-10% ARMER4 ST AS 350 153 4.33 2000 137.90continued AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 K 350 226 6.40 2000 137.90 Q 350 75 2.12 2000 137.90 G 350 38 1.08 2000 137.90 10.1-50% ARMER5 ST AS 350 153 4.33 2000 137.90 AQ 350 89 2.52 2200 151.68 A3 350 33 0.93 2200 151.68 K 350 226 6.40 2000 137.90 Q 350 75 2.12 2000 137.90 G 350 38 1.08 2000 137.90

Helium 0.5-9.9ppm HEMER1 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 10-999ppm HEMER2 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90 1000-9999ppm HEMER3 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90 1-10.1% HEMER4 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90 10.2-50% HEMER5 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 199 5.64 2000 137.90 Q 350 67 1.90 2000 137.90 G 350 34 0.96 2000 137.90

* Key for Praxair Grades (Refer to D1 for complete specification details). EV Environmental grades include EPA (E), Primary Master (N), Certified Master (M), Dynamic Blend Master (D) and Dynamic Blend Standard (Y).ST Standard grades include Primary (P), Certified (C), Non-Certified (U) and Custom (Z).



Mixtures

Methane

D

40

NI MER1E-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Hydrogen 0.5-9.9ppm HYMER1 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 10-999ppm HYMER2 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 1000-9999ppm HYMER3 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90 1-50% HYMER4 ST AS 350 133 3.77 2000 137.90 AQ 350 77 2.18 2200 151.68 A3 350 29 0.82 2200 151.68 K 350 196 5.55 2000 137.90 Q 350 65 1.84 2000 137.90

Nitrogen 0.5-9.9ppm NIMER1 EV(2),ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-999ppm NIMER2 EV(2),ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 1000-9999ppm NIMER3 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 1-14.3% NIMER4 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90 14.31-50% NIMER5 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 K 350 209 5.92 2000 137.90 Q 350 70 1.98 2000 137.90(2) Environmentalgradesavailable1ppmto1000ppminAirandNitrogenbalanceonly.

* Key for Praxair Grades (Refer to D1 for complete specification details) EV EnvironmentalgradesincludeEPA(E),PrimaryMaster(N), Certified Master (M), DynamicBlendMaster(D)andDynamicBlendStandard(Y).

ST StandardgradesincludePrimary(P), Certified (C), Non-Certified (U)andCustom(Z).





Mixtures

Methanol

D

41

Regulator Page

Recommendations



Line PRS40052001-000 F6


Air 1 ppm - 5000 ppm P-18-0476

Helium 1 ppm - 5000 ppm P-18-0477


AIMLR1P-AS

Reference Number

Praxair Grade

Cylinder Style


ft3 m3 psig bar

Air 1-9.9 ppm AI MLR1 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 10-999 ppm(1) AI MLR2 ST AS 590 146 4.13 2000 137.90 AQ 590 84 2.38 2200 151.68 A3 590 32 0.91 2200 151.68 1000-5000 ppm(1) AI MLR3 ST AS 590 119 3.37 1617 111.49 AQ 590 63 1.78 1617 111.49 A3 590 23 0.65 1617 111.49

Helium 1-9.9 ppm HE MLR1 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 10-999 ppm(1) HE MLR2 ST AS 350 135 3.82 2000 137.90 AQ 350 78 2.21 2200 151.68 A3 350 29 0.82 2200 151.68 1000-5000 ppm(1) HE MLR3 ST AS 350 108 3.06 1617 111.49 AQ 350 57 1.61 1617 111.49 A3 350 22 0.62 1617 111.49

Nitrogen 1-9.9 ppm NI MLR1 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 10-999 ppm(1) NI MLR2 ST AS 350 142 4.02 2000 137.90 AQ 350 82 2.32 2200 151.68 A3 350 31 0.88 2200 151.68 1000-5000 ppm(1) NI MLR3 ST AS 350 117 3.31 1617 111.49 AQ 350 62 1.76 1617 111.49 A3 350 23 0

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