WHMIS

Question 1

What is the maximum allowable size of a metal drum for category 2 and 3 flammable liquids?

Answer 1

230 L (60 US gallons) for general storage and handling (National Fire Code of Canada)

Question 2

What is the temperature at which the vapour pressure of a liquid is equal to atmospheric pressure?

Answer 2

Boiling point, causing rapid vapourization.

Question 3

Define flash point?

Answer 3

Flash point is defined as the lowest temperature at which sufficient vapor is produced to form a flammable mixture with air above a liquid’s surface.

Question 4

Define fire point?

Answer 4

The lowest temperature at which a liquid produces enough vapor to ignite from an external ignition source. Will continuously burn.

Typically higher than flash point.

Question 5

Define autoignition temperature?

Answer 5

The lowest temperature at which a substance will ignite in a normal atmosphere without an external ignition source.

Question 6

What does OIL-RIG used to remember?

Answer 6

Oxidation is losing an electron.
Reduction is gaining an electron.

Question 7

What does OIL-RIG used to remember?

Answer 7

Oxidation is losing an electron.
Reduction is gaining an electron.