workplace hazardous materials information system (whmis)
TRANSCRIPT
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Workplace Hazardous Materials Information System (WHMIS)
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“No employer may allow the use, handling or storage of a Controlled
Productin a workplace unless the product
carries a label and a material safety data sheet which meet the
requirements of this Act and the regulations and unless the worker has received the training and information
required to carry out the work entrusted to him safely”
- Article 62.1, An Act respecting occupational health and safety R.S.Q., S-2.1
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What are Controlled Products?
Class A:Compressed Gas
Class B:Flammable and Combustible Material
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Controlled Products
Class C: Oxidizing Material
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Class D Controlled Products
Division 1: Materials Causing Immediate and Serious Toxic Effects
Division 2: Materials Causing Other Toxic Effects
Division 3: Biohazardous Infectious Materials
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Controlled Products
Class E:Corrosive Material
Class F: Dangerously Reactive Material
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Not Classified as Controlled Products:
explosives
radioactive materials
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Not Classified as Controlled Products:
domestic goods
cosmetics
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Not Classified as Controlled Products:
Food & food additives
Drugs & diagnostic chemicals
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Not Classified as Controlled Products:
pesticides
hazardous waste
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WHMIS Main Elements
• Material safety data sheets– supplier– workplace
DIMETHYLMEGADEATH• Training
– core– job specific
• Labels– supplier– workplace– laboratory
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FIRST AID:EYES: Flush with water for 15 minutes. Consult with physician
SKIN: Flush with water as per sulphuric acid
INGESTION: Treat as per sulphuric acid. Consult with physician
Supplier’s Label
PRODUCT IDENTIFIERTOLUENE SULFONIC ACIDRISK PHRASES:Highly irritating to skin, eyes, and nose
HEALTH HAZARD DATA:
Strong Acid: Treat as sulphuric acid
EFFECTS OF OVEREXPOSURE: ACUTE
PRECAUTIONARY MEASURES:PERSONAL PROTECTIVE EQUIPMENTEYE: Face shield and gogglesGLOVES: Rubber
OTHER CLOTHING AND EQUIPMENT: Rubber apron, rubber boots
Refer to Material Safety Data Sheet
ABC Chemicals123 Chemical DriveChemical City1-800-CHE-MICAL
Supplier identifier
FRANCAIS AU VERSO
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Workplace Label
PRODUCT IDENTIFIERMethyl AlcoholPrecautions:Use in well ventilated area
Avoid contact with skin and eyes
Keep away from spark and flame
Refer to Material Safety Data Sheet
FRANCAIS AU VERSO
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Workplace Labels Required:
On controlled products produced and used in the workplace,
if the label becomes illegible.
received from a supplier and transferred to another container*
*not required if transferred material is used in its entirety prior to the end of the work shift
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Workplace Labelsin Research Labs
• MSDS must be available
• Not to be transported out of lab
Agent Green
• Product identifier (name)
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Material Safety Data Sheets
• Supplier must provide• Accessible to ALL
workers in the workplace
• Must be kept up to date
• Must be made available to doctor in the event of exposure
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What’s in an MSDS?
1. Product Information
Item Name: VARSOL-1 SOLVENT
Company's Name: EXXON CO, 800 BELL ST., HOUSTON, TX, US, 77252-2180
Emerg Ph #: 713-656-3424
/800-424-9300(CHEMTREC)
Part Number: 131030-00627
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What’s in an MSDS?
2. MSDS Preparation
Date MSDS Prepared: 12APR95
Safety Data Review Date: 13JUN96
MSDS Preparer's Name: MARKETING TECHNICAL SER
Preparer's Company: EXXON COMPANY, USA (713-656-5949)
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What’s in an MSDS?
3. Ingredients
Ingredient: STODDARD SOLVENT
Ingredient Sequence Number: 01
Percent: 100
CAS Number: 8052-41-3
OSHA PEL: 500 PPM
ACGIH TLV: 100 PPM
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Definition: Threshold Limit Value
• TLV (TWA) is an 8-hour time-weighted average believed to be the average concentration to which most workers can be exposed during an 8-hour workday, day after day, without harmful effects.
• TLV (STEL) is a 15 minute “short term exposure limit”
• Ceiling (C) is a maximum concentration never to be exceeded
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Stoddard Solvent?
Ingredient: C*7-C*10 saturated hydrocarbon, Percent: 83.0
Ingredient: 1,2,4-trimethylbenzene. Percent: 4.0
Ingredient: C8+ aromatics, Percent: 17.0
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What’s in an MSDS?
4. Physical Properties
Appearance and Odor: clear water-white liquid, mineral spirits odor.
Boiling Point: 315F,157C
Melting Point: <0F,<-18C
Vapor Pressure (MM Hg/70 F): 1.6MM @20C
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What’s in an MSDS?
4. Physical Properties (cont’d)
Vapor Density (Air=1): 3.5
Specific Gravity: 0.80
Evaporation Rate And Ref: 0.1 (N-butyl acetate=1)
Solubility In Water: negligible
Percent Volatiles By Volume: 100
pH: NEUTRAL
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What’s in an MSDS?
5. Fire and Explosion Data
Flash Point: 104F,40C
Flash Point Method: TCC
Lower Explosive Limit: 2.1%
Upper Explosive Limit: 13.3%
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Definition: Flash Point
• The flash point is the lowest temperature at which a liquid produces enough vapour to ignite in the presence of a source of ignition.
• The lower the flash point, the greater the risk of fire.
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Flash Points oC
acetone -18
ether (diethyl) -45
natural gas - 88
ethyl alcohol 13
methyl alcohol 11
gasoline -43
varsol 40
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What’s in an MSDS?
5. Fire and Explosion Data, cont’d
Extinguishing Media: foam, H2O spray(fog), dry chem, CO2
Special Fire Fighting Proc: keep fire-exposed containers cool w/H2O
Unusual Fire And Expl Hazards: liq is volatile/gives off invisible vapour; may settle in low areas
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What’s in an MSDS?
6. Product Reactivity Stability: YES Cond To Avoid: keep product away from ignition sources such as heat,sparks,pilot lights,static electricity, open flames.Materials To Avoid: strong oxidants e.g., chlorine; O2, sodium and calcium hypochlorite.
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What’s in an MSDS?
6. Product Reactivity •Hazardous Decomposition Products: fumes, smoke, CO, sulfur oxides, aldehydes•Hazardous Polymerization?: NO
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What’s in an MSDS?
7. Toxicological information
LD50-LC50 Mixture: ORAL LD50 (RABBIT) >3.16G/KG OF BODY WT
Route Of Entry - Inhalation: YES
Route Of Entry - Skin: YES
Route Of Entry - Ingestion: NO
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Definition: LD50
• LD50 (Lethal Dose50) is the amount of a substance that, when administered by a defined route of entry (e.g. oral or dermal) over a specified period of time, is expected to cause the death of 50 per cent of a defined animal population.
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Definition: LC50
• LC50 (Lethal Concentration50) is the amount of a substance in air that, when given by inhalation over a specified period of time, is expected to cause the death in 50 per cent of a defined animal population.
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What’s in an MSDS?
7. Tox. information, cont’d
Signs/Symptoms Of Overexp: high vap concentration (>1000ppm) irritation of eyes, resp tract.
headaches, dizziness, anesthesia, drowsiness, unconsciousness, other CNS effects including death.
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What’s in an MSDS?
7. Tox. information, cont’d
Carcinogenicity - IARC: NO
Carcinogenicity - OSHA: NO
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What’s in an MSDS?
8. Preventive measures
Respiratory Protection: none specified by manufacturer.
ventilation: use only w/venti sufficient to prevent exceeding recommended exposure limit
limit buildup of explo concen. No smoke/flame use/ign source.
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What’s in an MSDS?
8. Preventive measures cont’d
ProtectiveGloves: chem-resist gloves.
Eye Protection: splash gogg,face shields.
Other Protective Equipment: chem-resist apron/other imperv cloth if needed.
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What’s in an MSDS?
8. Preventive measures cont’d
Storage: Keep cntnr clsd when not in use. Do not store near heat/sparks/flame/strong oxid. Effectively ground.
NFPA: Use approp eqmpt. NFPA-70.
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What’s in an MSDS?
8. Preventive measures cont’d
Spills : elimnate ign sources. keep people away. Recover free portion. Add sand/earth/suitable absorbent. Min breath vap/skin contact. Venti confined spaces.Opn windows/doors. Keep out of sewers/ watercourses w/dike/impound. Conform to applicable gov’t regs.
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What’s in an MSDS?
9. First Aid Measures
Emergency/First Aid Procedure:
EYE:flush w/clear water for 15mins/til irritation subsides. If irrit persists call physician.
SKIN: remove contaminated clothing. Wash skin w/soap/water.
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Controlled Products - Characteristics and Precautions
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Class A: Compressed GasCharacteristics
Gas inside cylinder is under pressure
The cylinder may explode if heated or damaged
Sudden release of high pressure gas streams may puncture skin and cause fatal embolism
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Class A: Compressed GasPrecautions
Transport and handle with care
Make sure cylinders are properly secured
Store away from sources of heat or fire
Use proper regulator
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Class B: Flammable and Combustible Material
CharacteristicsMay burn or explode when exposed to heat, sparks or flames
Flammable: burns readily at room temperature
Combustible: burns when heated
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Class B: Flammable and Combustible Material
Precautions
Store away from Class C (oxidizing materials)Store away from sources of heat, sparks and flameDo not smoke near these materials
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Class C: Oxidizing Material
CharacteristicsCan cause other
materials to burn or explode by providing oxygen
May burn skin and eyes on contact
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Class C: Oxidizing Material
PrecautionsStore away from Class B (flammable and combustible) materials
Store away from sources of heat and ignitionWear the recommended protective equipment and clothing
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Class D, Division 1Materials Causing Immediate and
Serious Toxic EffectsCharacteristics
May cause immediate death or serious injury if inhaled, swallowed, or absorbed through the skin
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Class D, Division 1Materials Causing Immediate and
Serious Toxic EffectsPrecautions
Avoid inhaling gas or vapoursAvoid skin and eye contactWear the recommended protective equipment and clothing
Do not eat, drink or smoke near these materials
Wash hands after handling
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Class D, Division 2Materials Causing Other Toxic Effects
CharacteristicsMay cause death or permanent injury following repeated or long-term exposure
May irritate eyes, skin and breathing passages: may lead to chronic lung problems and skin sensitivity
May cause liver or kidney damage, cancer, birth defects or sterility
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Class D, Division 2Materials Causing Other Toxic Effects
PrecautionsAvoid inhaling gas or vapoursAvoid skin and eye contactWear the recommended
protective equipment and clothing
Do not eat, drink or smoke near these materials
Wash hands after handling
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Class D, Division 3Biohazardous Infectious Material
CharacteristicsContact with microbiological agents (e.g., bacteria, viruses, fungi and their toxins) may cause illness or death
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Class D, Division 3Biohazardous Infectious Material
PrecautionsWear the recommended protective equipment and clothing
Work with these materials in designated areas
Disinfect area after handling
Wash hands after handling
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Class E: Corrosive MaterialCharacteristics
Will burn eyes and skin on contactWill burn tissues of respiratory tract if inhaled
7
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Class E: Corrosive MaterialPrecautions
Store acids and bases in separate areas
Avoid inhaling these materials
Avoid contact with skin and eyes
Wear the recommended protective equipment and clothing
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Class F: Dangerously Reactive Material
CharacteristicsMay be unstable, reacting dangerously to jarring, compression, heat or exposure to light
May burn, explode or produce dangerous gases when mixed with incompatible materials
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Class F: Dangerously Reactive Material
CharacteristicsStore away from heatAvoid shock and frictionWear the recommended
protective equipment and clothing