your right to know!! whmis - your right to know... whmis l 1

Your right to know!!WHMIS

Format for today...

WHMIS…WorkplaceHazardousMaterialsInformationSystem

“An Information System designed to advise you on the Hazardous Materials you may encounter in our Chemistry Lab or in your Workplace”

Key Elements of WHMIS...

• labels

• Material Safety Data Sheets

• worker training

Students must…

understand the information provided

follow the rules outlined in the Safety Agreement

wear the equipment, protective clothing

report hazards to their teacher

Fume

Dust

Smoke

SOLID

LIQUID

GAS

Mist

Vapour

Properties of Hazardous Materials

Compressed

Heavier than air or Replace air

Odourless

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Routes of Entry...

Inhalation(i.e. Organic vapours causing central nervous system damage)

Ingestion(i.e. lead dust)

Injection(i.e. Blood/ Body Fluids - HIV, HepC)

Absorption(i.e. Formaldehyde-contact dermatitis

The Body and Health Affects…..

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Definitions...• Carcinogen: A substance or physical agent

that can cause cancer in humans.

e.g. : Asbestos.

• Mutagen: A substance or physical agent that can cause changes in one or more heredity features by modifying genes.

e.g. : Ionizing radiation.

• Teratogen: A substance capable of causing changes to the developing fetus.

e.g. : Thalidomide.

Symbols of Chemicals

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Class A: Compressed Gases

Risks• poses an explosion hazard

because contents of cylinder are under pressure

• container may explode if heated in a fire

• container may explode if dropped

Class B: Flammable & Combustible Materials

• potential fire hazard

• may ignite spontaneously

• may be a material which will release flammable products if allowed to degrade or when exposed to water

Risks

Class C: Oxidizing Materials

• can cause skin or eye burns

• increased risk of fire and/or explosion risk in the presence of flammable or combustible material

• can cause other materials to react or break down

Risks

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Class D - Division 1: ToxicImmediate and Severe

• chemicals which could cause death following an exposure

• may be fatal if ingested or inhaled

• may be absorbed through the skin

Risks

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Class D - Division 2: ToxicLong Term Effects

• may cause death orpermanent injury

• may cause birth defects or sterility

• may cause cancer

• may be a sensitizer, causing allergies

Risks

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Class D - Division 3: Biohazardous Infectious

Risks• biological materials which can

cause a disease or have thesame effects as the disease

• materials which couldcontain organisms which are infectious

• materials which could contain biological toxins or allergenic sensitizers

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Class E: Corrosive Materials

• eye and skin irritation on exposure

• severe burns/tissue damage possible

• lung damage if inhaled

• may cause blindness if eyes contacted

• environmental damage from fumes

Risks

Class F: Dangerously Reactive Materials

• chemically unstable

• may react with violence in unexpected manner

• may explode from heat or shock

• may react with water

• may violently polymerize

Risks

Consumer Products

Consumer Products

FLAMMABLE

Consumer Products

FLAMMABLE POISON

Consumer Products

CORROSIVEFLAMMABLE POISON

Consumer Products

CORROSIVE EXPLOSIVEFLAMMABLE POISON

Consumer Product Labels

Flammable Toxic

Corrosive Pressurized Container

**Quick Skin-bonding Adhesives – no symbol required. Text only.

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Supplier Labels...

7 Required pieces of Information:

1. Name of Product2. Name of Supplier3. Reference to MSDS4. WHMIS Symbols5. Risk Phrases6. Precautionary Measures7. First Aid Measures

- English and French- Hatch Marked Border

MSDS….

Material Safety Data Sheets

MSDS’s: Who is Responsible?• provide MSDS in both official languages

• ensure MSDSs are completeSupplier:

Mrs. Lacroix: • obtain MSDS

• ensure MSDSs are available to students for lab preparation

Students: • obtain MSDS from computer

• Review and understand hazards, precautions, and emergency response for all required lab chemicals.

• Write hazards, precautions, and emergency responses in lab notebook prior to Lab Day.

MSDSs...

1) Product Identification & Use2) Hazardous Ingredients3) Physical Data4) Fire & Explosion Hazard Data5) Reactivity Data6) Toxicological Properties/Health Hazard Data7) Preventative Measures8) First Aid Measures9) Preparation Date of MSDS

Information Required on the MSDS:

• What dangers might this chemical impose?

Do your homework!!

Look up the hazards on the MSDS.

Controlling Hazards by taking

Precautions….

What Do I Do If ......? A chemical contacts my skin?

A chemical contacts my eyes?

I break glassware?

I spill water?

I spill acid?

Hot liquid overflows while on my hotplate?

My test tube contents fizz and bubble over the top?

I notice a frayed electrical cord?

My lab partner(s) is not following lab rules?

Sample MSDS...

Barium Nitrate

Find: 1. Hazards2. Precautions3. Emergency Responses