Transcript WHMIS - Pembina Trails School Division
WHMIS
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WHMIS Stands for…
W
orkplace
H
azardous
M
aterials
I
nformation
S
ystem
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WHMIS is…
A Canada-wide system designed to give employers and workers information about hazardous materials used in the workplace. WHMIS standards are coordinated between both Federal and Provincial governments.
Manitoba Workplace Safety and Health Act and Regulations sets the WHMIS requirements.
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WHMIS has 3 Main Parts
Labels – provide information about the hazards of the product
Material Safety Data Sheets (MSDS) – provide further detailed information about the hazards associated with the product
Education – how to use the information provided in the MSDS and on the Label
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The GOAL is…
Identify 6 Classes of Controlled Products Understand the Main Hazards associated with each class Recognize and understand the two types of WHMIS labels Understand how to use Material Safety Data Sheets
A Controlled Product is…
Any substance or material which meets any of the criteria for inclusion in one or more of the six WHMIS Hazard Classes as defined in the Federal Controlled Product Regulation.
Under WHMIS , there is no comprehensive list of controlled products but only a list of hazard criteria.
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WHMIS Does Not Apply
When WHMIS does not apply there may be another Act or regulation that does.
WHMIS does not apply to controlled products that are:
Wood or a product made of wood Tobacco or a product made of tobacco A manufactured item that will not release chemicals Products transported under the Transportation of Dangerous Goods Act
When WHMIS Does Not Apply
WHMIS does not apply to products covered by:
Explosives Act Food and Drugs Act Pest Control Products Act Certain products in the Hazardous Products Act Nuclear Safety and Control Act
Hazard Classes & Symbols
There are 6 Hazard Classes
Hazard Classes & Symbols
Class A : Compressed Gases Risks
Physical hazard (120kg) Explosive hazard Content hazard
Examples
CO 2 cylinders N 2 cylinders O 2 cylinders acetylene
Hazard Classes & Symbols
Class A : Compressed Gases Handling and Use
Secure cylinder upright with valve cap on when not in use Use gas specific regulator Test connections for leaks Avoid heat & ignition sources Transport using specialized cart Store in cool ventilated area
Hazard Classes & Symbols
Class A : Liquid N 2 & Dry Ice Risks
Frostbite Samples may explode Asphyxiation
Handling and Use
Avoid skin contact Wear insulated glove and eye protection Store in a well ventilated room Transport securely to prevent accidental spillage
Hazard Classes & Symbols
Class B : Flammable & Combustible
There are six Subdivisions
1. Flammable gas 2. Flammable liquid 3. Combustible liquid 4. Flammable solid 5. Flammable aerosol 6. Reactive flammable material
Hazard Classes & Symbols
Class B : Flammable & Combustible Risks
Fire hazard – will burn if ignited Could ignite spontaneously Could ignite upon mixing with water or other chemicals Many are poisonous
Hazard Classes & Symbols
Class B : Flammable & Combustible Examples
1. Flammable gas – hydrogen, methane 2. Flammable liquid [flash pt <37.8C] – gasoline, ether 3. Combustible liquid [flash pt >37.8C] – kerosene, varsol 4. Flammable solid – magnesium metal, aluminum dust 5. Flammable aerosol – propane, butane, isobutane 6. Reactive flammable material – phosphorus, sodium metal
Hazard Classes & Symbols
Class B : Flammable & Combustible Handling and Use
Avoid contact with flames, heat, & ignition sources Cap tightly for storage, vapours are flammable Avoid inhalation and skin contact Ground and bond when dispensing from 25L container Store in flammable storage cabinets if in excess of 30L Transport separate from oxidizing materials Transport securely using secondary containment
Hazard Classes & Symbols
Class C : Oxidizing Material Risks
Increase fire and explosion hazard May cause combustibles to explode or react violently May burn skin and eyes on contact Most are corrosive and poisonous
Examples
Peroxides Nitrates Persulfates Hypochlorites (bleach)
Hazard Classes & Symbols
Class C : Oxidizing Material Handling and Use
Wear the recommended protective equipment and clothing Store away from sources of heat and ignition Many oxidizers are shock sensitive, handle carefully Store and transport separately from flammables and organics Store in non-corroding containers Transport securely
Hazard Classes & Symbols
Class D : Poisonous and Infectious
Division 1 –
Materials Causing Immediate and Serious Toxic Effects (acute)
Division 2 –
Materials Causing Other Toxic Effects (chronic, delayed)
Division 3 –
Biohazardous Infectious Material 19
Hazard Classes & Symbols
Class D : Poisonous and Infectious Division 1 Risks
Small quantities may be harmful or lethal May be toxic not only if ingested but also if inhaled or absorbed through skin or eyes Many acute toxic compounds act as carcinogens at lower levels
Examples
Carbon monoxide All halogens Cyanides
Hazard Classes & Symbols
Class D : Poisonous and Infectious Division 2 Risks
Materials which have harmful effects after repeated exposures or over long periods of time Damage could include: Permanent injury or death Birth defects Cancer Organ damage Sensitization and allergies
Examples
Asbestos Formaldehyde, benzene Ammonia
Hazard Classes & Symbols
Class D : Poisonous and Infectious Division 3 Risks
Infectious materials which may cause disease resulting in illness or death
Examples
Blood, tissue, and body fluids Tissue culture Experimental cultures
Hazard Classes & Symbols
Class D : Poisonous and Infectious Handling and Use
Wear protective clothing to avoid all exposures: skin, inhalation, ingestion, and injection Work in a fume hood or BSC Avoid creating dust, vapours, and aerosols Obtain appropriate immunizations Handle exterior containers as though it is contaminated Store and transport securely to prevent accidental spillage
Hazard Classes & Symbols
Class E : Corrosive Material Risks
Will burn human tissue including skin, eyes, nose mouth, throat & lungs Will corrode many lab related materials particularly metals Fumes may damage the environment
Examples
Strong acids & bases Hydrogen fluoride Hydrogen chloride
Hazard Classes & Symbols
Class E : Corrosive Material Handling and Use
Wear appropriate protective clothing When possible work in the fume hood Open containers slowly When diluting acids, always add acid to water Store in non-corroding containers, on non-corroding trays (secondary containers ) Store away from combustibles, organics, and sources of heat and ignition Transport separate from flammables Transport securely using secondary containment
Hazard Classes & Symbols
Class F : Dangerously Reactive Risks
May be unstable or vigorously polymerize May react with water to release a toxic or flammable gas May self-react when shocked or heated Highly reactive with incompatible materials May burn eyes and skin on contact
Examples
Ether Acrylates 1,3-butadiene Metal azides
Hazard Classes & Symbols
Class F : Dangerously Reactive Handling and Use
Follow MSDS recommendations for use and storage Wear protective clothing, especially eye protection Open slowly and carefully & use in fume hood Ensure lab equipment is clean and free of impurities Store away from incompatible chemicals Keep away from heat and ignition sources; avoid sudden temperature changes May require inhibitors to prevent reaction during storage Examine storage containers frequently Store & transport securely
Label Types
Supplier Labels
Workplace Labels
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Labels
Supplier Labels
The following must be included on a supplier label: Product Name WHMIS Symbols Risk Phrases Precautionary Measures First Aid Measures MSDS Reference Supplier Name All information must be within a hatched border
Labels
Laboratory Supply House - Supplier Label 3) Symbol
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Labels
Workplace Labels
The following must be included on a workplace label: Product Name Risk Phrases Safe Handling Instructions Name & Date MSDS Reference
Labels
Workplace Labels Must be present on:
Products decanted or transferred from an original container Product where original label is lost or becomes illegible Products produced and used at the workplace
You can print your own WHMIS workplace labels
Labels
Workplace Labels – Hazardous Waste
The following must be included on a hazardous waste label: Generator Information Product Name & Concentration Hazards
Labels
Workplace Labels – Hazardous Waste Waste Tags must:
Be present on containers that do not have a correct supplier label Must list any chemical over 1% or any quantity if it poses a significant hazard Use only chemical names (no trade names, abbreviations, or formulas)
Print your own hazardous waste labels
Material Safety Data Sheets (MSDS)
Provide detailed information on the hazards of a controlled product An important element for developing safe work procedures and control measures Must be provided by the supplier, or If you have created a product, you must prepare a MSDS Risk Group 2 and higher biological agents also require a MSDS or a Pathogen Safety Data Sheet (PSDS)
MSDS’s must be replaced every 3 years All MSDS must be kept for a minimum of 30 years WellNet provides this service for PTSD
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MSDS
Information Provided Product Information
This section identifies product name, manufacturer and suppliers names, addresses, and emergency phone numbers, and the intended use of the product.
Hazardous Ingredients
This section lists all potentially hazardous ingredients, with the approximate amount (percent), and toxicity data for the individual ingredients. Information regarding the LD50 and LC50 (the amount of a chemical that is expected to kill 50% of a test animal population within a specified time) will also be given. The lower the value the greater the poisoning potential.
MSDS
Information Provided Physical Data
Provides information on the physical and chemical properties such as odour, boiling point, and vapour density.
Fire or Explosion Hazard Data
Provides the conditions under which the product may catch fire or explode, as well as information for developing strategies and procedures to deal with fire and explosion hazards.
First Aid Measures
Lists the procedures for emergency first aid.
MSDS
Information Provided Reactivity Data
Provides information regarding stability, self-reactivity, hazardous decomposition products, and conditions to avoid when using the product.
Toxicological Properties
Identifies how the substance can enter the body and the possible health effects from short term (acute) exposures such as irritation, sensitization; and long-term (chronic) such as liver or kidney damage, sensitization, cancer, or reproductive effects. Known exposure limits will also be given.
MSDS
Information Provided Preventative Measures
Provides preventive measures you can take to protect yourself from exposure including: extra ventilation, personal protective equipment (PPE), safe use, handling, storage, disposal, transport, and spill control.
Preparation information
Indicated who was responsible for preparation and date of preparation of MSDS. It is 3 years from this date when the MSDS needs to be renewed.
Information may be labeled as Trade Secret if a claim has been filed. The information is released to medical professionals in case of emergency.
MSDS
Example
MSDS
Location, Location, Location
All staff are required to know the location of the MSDS book All staff that use or work in close proximity to chemicals are required to know how to use WellNet to access MSDS information via the PTSD website.
Hazardous Waste Disposal Procedures
Every year the School Division coordinates a hazardous waste pick up with Miller Environmental.
Hazardous waste pick up occurs every June.
Hazardous waste labels and Miller Environmental Hazardous Waste Inventory sheets are available on the PTSD website.
Science teachers should incorporate waste disposal into lab procedures or experiments Reminder: NO disposal of Hazardous Waste is permitted down the drain (unless it has been neutralized and pH verified) or regular trash can.
Remember that your end point is someone’s starting point Refer to the PTSD Workplace S&H webpage for details
Spill Clean-up
Chemical or Biological
If a spill occurs that poses an immediate risk to people, or if someone is injured – it is an EMERGENCY Minor spills should be cleaned up by trained staff Spills must never be cleaned up by untrained staff Under no circumstance shall caretakers be instructed to clean up any lab spills The best time to learn about and practice cleaning up a spill is before it happens – read the MSDS S&H Officer is also available to assist with the cleanup of spills beyond the capabilities of available staff Information on spills cleanup can be found on the PTSD Workplace
S&H website
Chemical Storage
General Chemical Organization
Organize by compatibility not alphabetically Separate each compatible group In separate cabinets or on separate shelves Or in secondary containers in same cabinet or shelf Make sure all containers are properly closed Containers must be labeled and tightly capped
Chemical Storage
General Chemical Organization
Flammables Bases Oxidizers Acids Store in flammable storage cabinets Store separately Store separately Store in corrosive resistant acid cabinet EXCEPT: chromic, nitric, and perchloric acids which should be stored separately Glacial acetic acid should be stored as a flammable
Chemical Storage
Potentially Explosive Chemicals Picric Acid and Nitro Compounds
Dry picric acid may explode if subjected to heat, shock, or friction (opening the lid) Picric acid must be stored under wet.
Some nitro compounds may have similar requirements
Peroxide Forming Compounds
Example ethers, dioxanes, sodium amide Peroxide formation may be initiated by light or air Peroxides are prone to explosive decomposition when subjected to heat, shock, or friction (opening the lid)
Evaluate the conditions of these chemicals regularly Refer to MSDS for storage and handling requirements
Chemical Storage
General Chemical Segregation Do Not Store:
Oxidizers Alkali metals Acetic Acid Acetone Hypochlorites Chlorine Cyanides (Alkaline) Potassium chlorate Chlorates (ClO 3 ) Hydrogen Sulphide H 2 O 2 Chromic Acid Annhydrous Ammonia Acids (conc.)
With:
Flammables Water, CO 2 , CO, or CCl 4 Chromic, nitric or perchloric acid, peroxides, permanganates, or hydroxides i.e. KOH Concentrated sulphuric or nitric acids Acids Ammonia, acetylene, butadiene, benzene, petroleum derivatives, or sodium carbides Acids Acids Ammonium salts, acids, metal powders, sulphur, or carbon Nitric acid Flammables, Cu, Cr, Fe, or respective salts Acetic acid, alcohol, naphthalene, glycerine, or other flammable liquids Halogens, Hg, HF, or CaClO 4 Bases (conc.)
Chemical Storage
General Chemical Organization & Segregation Do Not:
Do not place heavy materials, liquid chemicals, and large containers above eye level Do not store chemicals on the floor Do not store items in fume hoods Do not expose stored chemicals to direct heat or sunlight
Chemical Inventory
PTSD Chemical Inventory Database
As part of the Manitoba Workplace Safety and Health Act and Regulations, an inventory of chemicals is required at the Division every year.
The Division provides WellNet as a general database for all chemicals used in the Division. It can be accessed from the PTSD Workplace Safety & Health website.
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Your principal / vice principal or designate is responsible for work‐site‐specific education that includes:
Hazard information for the controlled products used at your work site Safe use, storage and handling of specific controlled products used at your work site Dealing with fugitive emissions and emergencies at your work site MSDS location