whmis labversion aug2012 %5b4 pages%5d

1Workplace Hazardous Materials Information System

Canadas Hazard Communication Standard

Environmental Health & Safety

WHMIS

ObjectiveTo ensure the protection of workers from the adverse effects of hazardous materials through the promotion of access to health and safety information on Controlled & Hazardous Products

Quebec Legislation

No employer may allow the use, handling or storage of a Controlled Product in 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

An Act respecting occupational health & safety R.S.Q., S-2.1

WHMIS Key Elements

Worker training programs Core (EHS) Job Specific (Supervisor)

Cautionary labeling of containers Supplier Labels Workplace Labels Laboratory Labels

Material Safety Data Sheets (MSDS)

2Outline

WHMIS Classes Risks Precautions

Labeling Material Safety Data

Sheets (MSDS)

WHMIS Classes & Pictograms

C

E

BA

F

B1, B2, B3, B4, B5, B6

D

D1AD1B

D2AD2B

D3

Class ACompressed Gas


3Class ACompressed Gas

Products under pressure or chilled Compressed Gases

~ Helium~ Oxygen~ Argon

Liquefied gases~ Carbon dioxide~ Liquid nitrogen ~ Cryogenic liquids


Risks Fire and explosion hazards

~ Flammable gases ~ Cylinder can explode if heated

Sudden release creates a stream that can puncture skin

May rocket or torpedo if damaged


Risks Exposure

~ Toxic~ Asphyxiation

Liquefied gases~ Extreme Cold

Rapid frost burn


Precautions Transport & handle with

care Secure to a structural

component Store away from heat

sources Use proper regulator Use proper protective

equipment

4Cryogenic Fluids

Characteristics Boiling points > -150C

Examples: liquid nitrogen, slushmixtures of dry ice with solvents

Causes cold burns and frostbite Small amounts produce large

volumes of gas by rapidevaporation.This can lower the availableoxygen in the immediate areathus creating an oxygendeficient atmosphere

Cryogenic Fluids

Precautions Wear appropriate personal protective equipment

when handling and transferring cryogenic liquids Insulated gloves Safety glasses and face shield Lab coat

Fill containers to indicated maximum level

Perform operations (pouring) slowly

Class BFlammable & Combustible

Acetone

Methanol


May burn, catch fire or explode when exposed to heat, sparks or flames

University of California Santa Cruz

11-Jan-2002 Depart. of Molecular, Cell and Developmental Biology

5Class BFlammable & Combustible

B1 Flammable gases Methane

B2 Flammable liquids (Flashpoint < 37.8C) Ethanol, Methanol, Toluene, Xylene, Ethyl Ether

B3 Combustible liquids (37.8C Flashpoint 93.3C) Acetic acid glacial, Isoamyl alcohol, -Mercaptoethanol

B4 Flammable solids Nitrocellulose, Paraformaldehyde

B5 Flammable aerosols Spray paint

B6 Reactive flammable materials Potassium, Lithium Hydride, Magnesium, Sodium


Flammable Burns at room temperature

~ ethyl ether, acetone, ethanol

Combustible Burns when heated

~ Kerosene, varsol

Demonstration

Flammable Material

1-litre Ethyl Ether


Demonstration

Combustible Material


Kerosene at room temperature

6Demonstration

Combustible Material


Kerosene at an elevated temperature

Flash Point

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.

Flash Point

acetone - 18Cether (diethyl) - 45Cnatural gas - 88Cethyl alcohol 13Cmethyl alcohol 11Cgasoline - 43Cvarsol 40C

Which presents the greatest risk

of fire?

Precautions Keep from heat sources

~ Flammable Storage Cabinets

Avoid incompatibilities~ Class C Oxidizing Materials

Permissible container size Use fume hood Use proper protective

equipment


7Class BFlammable & Combustible

Precautions Unattended

experiments Do not store

flammables in domestic freezers or refrigerators

Montreal Neurological Institute


1 Dead in lab explosionMulhouse, France March 24, 2006

EXPLOSION 1 professor killed 1 student severely injured $130 million in damage

CAUSE Residue of flammable gas in a

pressure vessel

Source: NATURE Vol. 441.1 June 2006 Photo: AP Photos

Closer to home9-Nov-06 Dept. of Chemistry

In setting up a reaction, a hotplate with an acetone bath on it was inadvertently turned on. The acetone caught fire and was rapidly

extinguished by a colleague.

What factors contributed to the event?Not monitoring the procedure

Inappropriate choice of apparatus

8Class COxidizing Material

Causes other materials to burn or explode by providing oxygen Gases, liquids or solid

~ Ammonium nitrate ~ Nitric acid~ Perchloric Acid Solutions~ Oxygen

Organic Peroxides~ Extremely hazardous

Demonstration

Class COxidizing Material

* Source of ignition not always necessary

Health Hazards May be toxic or corrosive

Precautions Keep away from heat sources Incompatibilities

~ Class B - Flammable & Combustible Material

Use fume hood if required Use proper protective equipment


Peroxide-forming chemicals Form explosive peroxide crystals that can violently

detonate under thermal or mechanical shock~ When stored

Isopropyl ether, vinylidene chloride~ When concentrated

Ethyl ether, tetrahydrofuran, p-dioxane


Texas Tech University 15-Jan-01

Risk when concentrated~ Evaporation & Distillation

Expiry Dates~ Do not handle the container

9Class DPoisonous & Infectious Materials

Division 1 Materials Causing Immediate

and Serious Toxic Effects

Division 2 Materials Causing Other Toxic

Effects

Division 3 Biohazardous Infectious Materials

Class D - Division 1Materials Causing Immediate & Serious Toxic Effects

May cause immediate death or serious injury if inhaled, swallowed, or absorbed through the skin D1A & D1B

~ Hydrogen cyanide~ Carbon monoxide~ Sulfuric acid

Class D - Division 2Materials Causing Other Toxic Effects

Products whose health effects generally appear over time following one or several exposures D2A & D2B

~ Acetaldehyde~ Lead ~ Calcium chloride~ Triethanolamine~ Formaldehyde

Health Hazards May irritate eyes, skin and

respiratory tract~ Leading to sensitization and/or

chronic lung problems

May cause major organ damage, cancer, birth defects, mutagenic, sterility, etc.

May cause permanent injury and death

Class DDivision 1 & 2

10

Location Liquids

~ Storage Cabinets Flammables Corrosives

~ Laboratory Shelves

Solids~ Laboratory Shelves



Precautions: Minimize exposure! Use fume hood if required Use proper protective equipment No food or drink in work areas Good personal hygiene

~ Wash hands after handling and before leaving

Class D, Division 3Biohazardous Infectious Material


Organisms or their toxins that can cause disease in people or animals Bacteria (Pseudomonas aeruginosa) Viruses (Hepatitis B, HIV) Recombinant nucleic acid Fungi (Candida albicans) Toxins (Botulinum)

11

Precautions Protect skin and eyes Handle in designated areas

~ Culture Rooms~ Biological Safety Cabinets

Disinfect your workspace Practice good personal hygiene No food or drink in work areas Advise supervisor of medical conditions Labeled storage - refrigerators and freezers


Class ECorrosive Material

Cause severe burns to skin, eyes and other tissues Will burn respiratory tract if inhaled

Can attack other materials, including metal Sulfuric Acid Hydrochloric Acid Sodium Hydroxide Phenol


Precautions Use in fume hood if required Use proper protective equipment

~ Protect skin and eyes

Store appropriately~ Store acids and bases in

separate areas~ Not under the sink!

Pour chemicals properly~ Pour acid into water


Incompatibilities within Acids Organic Acids

~ Acetic Acid

Oxidizing Acids~ Nitric acid

Special consideration Perchloric acid Hydrofluoric acid Picric acid

12

Class FDangerously Reactive Material

Unstable and react quickly and dangerously Water, heat, pressure, impact, exposure to light

or itself~ Sodium~ Vinyl Chloride (monomer)


Risks May combust under conditions of shock, friction

or increase pressure or temperature~ Organic peroxides~ con. Hydrogen peroxide~ Dry picric acid

May produce dangerous gases ~ Water & alkali metal

cyanides University of Southampton 31-Oct-05School of Electronics and Computer Science

Demonstration

1 oz (28.3 g) Sodium Metal


Precautions Store away from the conditions

that can set it off Isolate to avoid shock and

friction Use proper protective equipment Expiration dates Monitor containers


13

Lab SafetyChemical Storage

Lab SafetyChemical Storage

Ethanol20 liters

Lab SafetyChemical Segregation

Hydrochloric acidMethanol

Nitric acid

Sulphuric acid

Lab Safety

14

Skin Absorption

Ingestion

Inhalation

Injection

Routes of Entry Lab SafetyPersonal Protective Equipment Skin Protection

Gloves Eye Protection

Safety glasses Goggles Face shield

Appropriate Clothing Lab coat Closed shoes No exposed skin

McGill PolicyPersonal Protective Equipment

Downtown CampusJuly 2008

Student splashed in the eye with agarose solution containing ethidium bromide.

Student splashed in the eye with tissue culture.

Root cause: Improper use of equipment and manipulation

Corrective actions: Be more carefulBuy new equipment

15

Downtown CampusJuly 2008

WEAR SAFETY GLASSES

Courtesy of

University of Ottawa

Why wear PPE?

Courtesy of University of Ottawa

Unexpected poison leaves 1 deadJune 1997 Dartmouth College

A toxic-metals expert spilled a couple of drops of dimethyl mercury on her hand and quickly cleaned it up and assumed that her latex gloves had stopped the toxic chemical reaching her skin.

Five months after the accident, she was having difficulty walking and her speech started to slur. Tests later showed that she had 80 times the lethal dose of mercury in her blood. After losing her vision and hearing, she slipped into a coma and died in June 1997, aged 48.

Source: Edited from NATURE|Vol 441|1 June 2006

Lab SafetyPersonal Protective Equipment

16

WHMIS Labeling

Suppliers Labels Original container

Workplace Labels Created at workplace

WHMIS Labeling

Supplier Label

Product Name

Supplier InfoMSDS

ReferenceWHMIS

Pictogram

Risk PhrasesPrecautions

First Aid

Workplace Labels

Required On controlled products

produced and used in the workplace

If the supplier label becomes illegible or defaced

When transferring into another container

17

Workplace Label

Toluene Keep container in a well-

ventilated place, away from heat and all sources of ignition.

Wear eye protection.

Avoid contact with skin.

Do not inhale vapours.

For more information refer to products Material Safety Data Sheet

Product Name

Reference to MSDS

Precautions

Workplace LabelsResearch Laboratories

Label Requirements Product Name Abbreviations NOT permitted

Additional Requirements MSDS must be available Not to be transported out of

laboratory

Workplace LabelsResearch Laboratories Safety Information

18

Material Safety Data Sheets

Suppliers prepare and provide Employers ensure:

Available and accessible to ALL workers

Up-to-date (3 years) Important:

Bring to doctor in the event of exposure


1. Product and Company Identification2. Composition / Information on Ingredients3. Hazards Identification4. First Aid Measures5. Fire Fighting Measures6. Accidental Release Measures7. Handling and Storage8. Exposure Controls / Personal Protection9. Physical and Chemical Properties10. Stability and Reactivity11. Toxicological Information12. Ecological Information13. Disposal Considerations14. Transport Information15. Regulatory Information16. Other Information


McGill Emergency Number:

Downtown ext. 3000; Macdonald ext. 7777 or MNI ext. 55-555


19

Material Safety Data Sheets Material Safety Data Sheets


McGill Emergency Number:

Downtown ext. 3000; Macdonald ext. 7777 or MNI ext. 55-555

20



21

Material Safety Data Sheets Permissible Exposure

Threshold Limit Value (TLV) Defined concentrations which most workers can

be exposed to without harmful effects. Time-Weighed Average (TWA)

~ 8 hour workday

Short-term Exposure Limit (STEL)~ 15 minutes

Ceiling Value (C)~ Maximum concentration never to be exceeded

LD50 & LC50

Lethal Dose: LD50 The amount of a substance that, when

administered (oral or dermal) over a specified period of time, is expected to kill 50 per cent of a defined animal population.

Lethal Concentration: LC50 The amount of a substance in air that, when

inhaled over a specified period of time, is expected to kill 50 per cent of a defined animal population.


22


Contact Hazardous Waste Management (5066)

MNI See MNI Lab Safety Manual



23


http://www.mcgill.ca/ehs/forms/references/links/

Material Safety Data SheetsInfectious Substances

http://www.mcgill.ca/ehs/forms/references/links/

www.mcgill.ca/ehs/mylab

Web based compliance tool Maintains hazardous material

inventories Allows shared inventories Inventory linked to MSDS service

(3E Inc.) Critical emergency response

information

www.mcgill.ca/ehs/mylab

24

Globally Harmonized System (GHS)

Will replace WHMIS New system for classifying hazardous chemicals Groups chemicals into 3 groups:

Physical Hazards Health Hazards Environmental Hazards

Appearance of labels & MSDS will change but not the content

Aimed at: workers, transport workers, emergency responders and consumers.

Questions?

[email protected]

www.mcgill.ca/ehs

whmis labversion aug2012 %5b4 pages%5d

Documents

safety information

occupational health

ethanol combustible

c flashpoint

c ethanol

asphyxiation liquefied

argon liquefied gases

c examples