Introductionhis directory was developed to provide important information andTcomparable data to assist in the selection of precision cleaningagents that may be suitable for oxygen service. The inclusion of

any product in this directory is not an endorsement, recommendation,or approval by the Compressed Gas Association of the product for usein any application.

The directory provides comparative information for both aqueous andsolvent cleaners, as provided by the manufacturers, on items such asevaporation rates, corrosivity, pH, residue potential, flammability,health hazards, Threshold Limit Value (TLV) and Permissive ExposureLimit (PEL) factors, ozone depletion rating, EPA Clean Air Act, RCRA Hazardous Waste, and SNAP List Material Compatibility. A CleaningEfficiency Factor (CEF) is also presented as obtained from independenttesting laboratories.

The CEF was determined by testing each cleaning agent at an indepen-dent laboratory using ASTM protocols; ASTM G-121, Practices forPreparation of Contaminated Test Coupons for the Evaluation of CleaningAgentsfor Use In Oxygen-Enriched Systems and Components, and ASTMG-122, Standard Test Method to Evaluate the Effectiveness of CleaningAgents.

The procedures for the standard CEF test for aqueous cleaners require aconcentration of 5 percent at 1500F immersed for 10 minutes withoutagitation. The manufacturers’ recommendations for actual use mayvary significantly from this procedure. It is important to understandthat the CEF number is a cleaning efficiency factor only, based on setparameters for the standard test procedure.

In addition to the standard test, the opportunity to request a nonstand-ard test was available to the cleaning agent suppliers to allow the use ofalternative procedures and parameters involving concentration, tern-perature, time, and agitation. Such tests are so identified.

Precision cleaning for oxygen service requires many considerations. Ifyou are cleaning equipment for oxygen service, you should be familiarwith the following publications:

CGA G-4.1, Cleaning Equipmentfor Oxygen Service, which isavailable from the Compressed Gas Association at (703) 412-0900, extension 799,ASTM G-127, Standard Guide For the Selection of CleaningAgents for Oxygen Service, andASTM G-93-96, Standard Practice for Cleaning Methods andCleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments, which are available from the AmericanSociety for Testing Materials at (610) 832-9585.

Cover photo by Randy Henningson

More CopiesMore copies of this directory

are available for $26 forCGA members and $48 fornonmembers. Use the en-closed postcard or callCGA’s publications line at(703)412-0900,ext.799.

Next Year ImmersionTime

Don’t miss out on nextyear’s directory. To receiveinformation when it isavailable, please fill out andreturn the enclosed postcardor call CGA’s publicationsline at (703) 412-0900, ext.799.

Rinse

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Each solvent manufacturer has provided a comparative evaporation ra(Butyl Acetate=1 .O> if known. The ability of a solvent to evaporatequickly is extremely important in cleaning applications. A solventremaining in an oxygen system is a severe hazard. It is mandatory thatresidual solvent (in hidden areas, crevices, or porous surfaces) be com-pletely removed. This factor has equal importance to the CEF.

Not listed?Did your product missgetting included in thedirectory? Call CGA at(703)412-0900,ext.720 forinformation about beingtested and listed next year.

Standard CEF Test ProceduresTesting of Cleaning Agents per ASTM G-121 and ASTM G-l2

Test Coupons: Six per test (five plus one control): Coupons arestainless steel in accordance with ASTM G-l21except mill finished instead of glass bead blasted.Coupons shall be used a maximum of 20 tests.Coupons shall be cleaned between tests. 111trichloroethane or methylene chloride are accept.cleaning fluids.

Contaminant Hydrocarbon oil (Mobil 600)

Contaminant Levels 1615+/-538 mg/m2 applied to one side of the coupwith swabs and/or wipes.

Solvent based=70+/_OF: Aqueous based = 150+5

Coupons immersed in individual beakers 500 mleach. To avoid any possibility of cross-contamina-tion, especially with the control coupon, separateml beakers should be used with each coupon.

Solvent based = 2 minutes: Aqueous based = 10minutes

Solvent based, no rinse. Aqueous based, 5 minute“soak” with ASTM Type II water by immersing inbeaker (no flow).

The type of cleaning application involved is an important element inselecting the best cleaning agent for the job. We recommend that youcontact the cleaning agent suppliers for further details involving performance and application. The suppliers’ telephone numbers are availablein the directory.

PLEASE NOTE:The information contained in this document was obtained from the manufacturers of cleaningagents and the test results of those agents. The tests were performed by independent

laboratories and were based on ASTM protocols. The Compressed Gas Association is reprinting this information as obtained from the manufacturers and the laboratories and makes no

representaion as to the accuracy or completeness of such information.The Association or its members, jointly or severlly, make no guarantee of the results and assume

no liability or responsibility in connection with the information herein contained.

1997 Directory of Cleaning Agents for Oxygen Service

Alconox

Alconox, Inc., 9 E. 40th St., Ste. 200, New York, NY 10016Phone: 212-532-4040 Fax: 212-532-4301

PROPERT IES

Type of Cleaner: Aqueous DetergentActive Ingredient: Anionic surfectants and buildersCAS Number ProprietaryCleaning System Options: Immersion: Yes Spray Wash : No Wipe: YesPractical Use and Procedure Summary: Make 1% solution in warm water, clean with agitation,

rinse thoroughlyCleaning Ability per Contaminant - Test Method:ASTM G121 & G122 ASTM G121/122

Contaminant: Mobil 600Average Initial Contamination Level (mg/m2): 1742Concentration of Cleaning Agent: 2½%*Method: ImmersionTime (minutes): 10 minutesCleaning Effectiveness Factor (CEF): 0.82 (Accuracy factor +/-.01)

Evaporation Rate Referenced to Butyl Acetate: N/AVapor Pressure (mmHg at 200 C): N/ACorrosivity (Al, CU, Fe): Not corrosivepH: 9.5Residue Potential: Negligible if rinsed thoroughlyFlammability

Flammable NoCombustible NoFlash Point NoneLEL (%) N/A

Health Hazard (MSDS):Carcinogen:TLV-TWA (ppm):Carcinogen per CA prop 65:

ENVIRONMENTAL FACTORS

0 = none (HMIS)NoNot determinedNo

Sara Title Ill Section 313 Toxic: NoneOSHA PEL, PPM: Not determinedACGIH TLV, PPM: Not determinedAcute Derma LD50 mg/kg H<4,300:Acute Inhalation LD50 mg/m3 H<lO,OOO PPM:Fish Toxicity 96 HR LC50, mg/L H,500mg/L:

Not determinedNot determinedNot determined

Ozone Depleting: NoVolatile Organic Compound (Global Warming Issue): 0%EPA Clean Air Act Hazardous Air Pollutant: NoneRCRA Hazardous Waste: NoOn SNAP list: No

O T H E R

Storage Period: 1 yearsEase of Disposal: Readily disposable as a detergentSpecial Handling: NoneMaterial Incompatibility: NoneWarranty: N/AAvailability: Worldwide for scientific and industrial suppliersPrice/Unit: $13.20 per 4 lb box

* Alconox (powder granules) was tested at 2½% by weight solution in water because it was judged that Alconox would precipitate from the solution athigher concentrations of 5%.1997 Directory of Cleaning Agents for Oxygen Service 3

Bio T 200A

BioChem Systems, Inc., 3511 N. Ohio, Wichita, KS 67219Phone: 316-838-4739 Fax: 316-832-1211

PROPERTIES

Type of Cleaner: Non-aqueous organic cleanerActive ingredient: TerpenesCAS Number Proprietary BlendCleaning System Options: Immersion: Yes Spray Wash : Yes Wipe: YesPractical Use and Procedure Summary: Pipeline pump, circulate concentrate, filter and reuse Bio

T Max, rinse pump with water and dispose, dry with hotnitrogen

Cleaning Ability per Contaminant - Test Method:ASTM G121& G122 ASTM G121/122

Contaminant: Mobil 600Average Initial Contamination Level (mg/lm2): 1644Method: ImmersionTime (minutes): 2 minutesCleaning Effectiveness Factor (CEF): 0.96 (Accuracy factor +/-.01)

Evaporation Rate Referenced to Butyl Acetate: Less than 1.0Vapor Pressure (mmHg at 20° C): Less than 2.0Corrosivity (Al, CU, Fe): NonepH: N/AResidue Potential: TerpeneFlammability

Flammable NoCombustible YesFlash Point 1210FLEL (%) Not determinedUEL(%) Not determined

ENVIRONMENTAL FACTORS

Health Hazard (MSDS):Carcinogen:TLV-TWA (ppm):Carcinogen per CA prop 65:Sara Title Ill Section 313 Toxic:OSHA PEL, PPM:ACGIH TLV. PPM:

NoneNoNot establishedNoNoneNot establishedNot established

Acute Derma LD50 mg/kg H<4,300:Acute Inhalation LD50 mg/m3 H<10,000 PPM:Fish Toxicity 96 HR LC50, mg/L H,500mg/L:

I Ozone Depleting:

Draize valve less than 1.0 (slight irritant)Less than 20 mg/lNot determinedNot determined

Volatile Organic Compound (Global Warming Issue): Not determinedEPA Clean Air Act Hazardous Air Pollutant: NoneRCRA Hazardous Waste: Ignitable

On SNAP list: Under application

OTHER

Storage Period:Ease of Disposal:Special Handling:Material Incompatibility:

5 yearsBiodegradable, not determined environmental problemsStore away from open flameRefer to MSDS

Warranty:Availability:Price/Unit:

N. America,S. America, Asia, Europe

1997 Directory of Cleaning Agents for Oxygen Service