EHS101 WHMIS AND LAB SAFETY FINAL
PAPER REVIEW GUIDE WITH VERIFIED
ITEMS AND SOLUTION WALKTHROUGH
●● What is WHMIS?
Answer: It is an information system implemented in 1988, that is
designed to help students know more about safety and health hazards of
material that they use in the workplace.
It also gives workers and employers key safety and handling information
in the form of special labels, symbols, and Material Safety Data Sheets
(MSDS) on potentially dangerous chemicals that are used on the job.
●● In which facilities must have WHMIS labels?
Answer: All controlled products at school or the workplace
●● What is purpose of WHMIS?
Answer: The purpose for a WHMIS label is to identify the product as
controlled and alert workers or handlers to the hazards and safe handling
procedures of the product.
A WHMIS label is just a first alert, as the amount of information in it is
limited by its size. (MSDS provides more detailed information.)
,Label only gives a brief summary of the most important things to know
about the chemical, so read the full label before using a product for the
first time.
●● What does a WHMIS label include?
Answer: - Name of the chemical: common name, generic name, brand
name, code name
- The WHMIS hazard symbols: represent the class the product is in
- Risks and precautions: short phrases that describe the hazards
represented by the symbol, and precautions that are to be taken when
using, handling or being exposed to the product
- First Aid instructions: immediate first aid measures that can be taken
by the victim or others in case of an accident or emergency.
- Supplier's name and address
- A reference to the matching MSDS for more information.
●● Class A (Info)
Answer: Compressed Gas
, - gas kept under pressure
- drop or impact on the container and heat may cause the container to
explode (ex. steel containers such as acetylene, oxygen, hydrogen and
fire extinguishers
- hazardous because of high pressure and the gas itself might be
hazardous (if it is, there will be labels along with the symbol)
- Handle with care, do not drop
- Keep away from heat
- Large cylinders must be properly secured with a chain
-> Cl2, O2
●● Class B (Info)
Answer: Flammable and Combustible Materials
- potential fire hazard
- may burn at relatively low temperature
- sparks, flame or friction could ignite it
- may burst into flames spontaneously in air or water
- keep away from heat sources and other combustible materials
-> Acetone (Nail Polish Remover) and Kerosene (Gasoline)
- Includes 6 Divisions
●● Class B Division 1 (Info)
Answer: Division 1: Flammable Gases
PAPER REVIEW GUIDE WITH VERIFIED
ITEMS AND SOLUTION WALKTHROUGH
●● What is WHMIS?
Answer: It is an information system implemented in 1988, that is
designed to help students know more about safety and health hazards of
material that they use in the workplace.
It also gives workers and employers key safety and handling information
in the form of special labels, symbols, and Material Safety Data Sheets
(MSDS) on potentially dangerous chemicals that are used on the job.
●● In which facilities must have WHMIS labels?
Answer: All controlled products at school or the workplace
●● What is purpose of WHMIS?
Answer: The purpose for a WHMIS label is to identify the product as
controlled and alert workers or handlers to the hazards and safe handling
procedures of the product.
A WHMIS label is just a first alert, as the amount of information in it is
limited by its size. (MSDS provides more detailed information.)
,Label only gives a brief summary of the most important things to know
about the chemical, so read the full label before using a product for the
first time.
●● What does a WHMIS label include?
Answer: - Name of the chemical: common name, generic name, brand
name, code name
- The WHMIS hazard symbols: represent the class the product is in
- Risks and precautions: short phrases that describe the hazards
represented by the symbol, and precautions that are to be taken when
using, handling or being exposed to the product
- First Aid instructions: immediate first aid measures that can be taken
by the victim or others in case of an accident or emergency.
- Supplier's name and address
- A reference to the matching MSDS for more information.
●● Class A (Info)
Answer: Compressed Gas
, - gas kept under pressure
- drop or impact on the container and heat may cause the container to
explode (ex. steel containers such as acetylene, oxygen, hydrogen and
fire extinguishers
- hazardous because of high pressure and the gas itself might be
hazardous (if it is, there will be labels along with the symbol)
- Handle with care, do not drop
- Keep away from heat
- Large cylinders must be properly secured with a chain
-> Cl2, O2
●● Class B (Info)
Answer: Flammable and Combustible Materials
- potential fire hazard
- may burn at relatively low temperature
- sparks, flame or friction could ignite it
- may burst into flames spontaneously in air or water
- keep away from heat sources and other combustible materials
-> Acetone (Nail Polish Remover) and Kerosene (Gasoline)
- Includes 6 Divisions
●● Class B Division 1 (Info)
Answer: Division 1: Flammable Gases
