CPC Laboratory Safety & Compliance 2

Question 1

Under OSHA's Hazard Communication Standard (HazCom 2012), how many sections are required on a Safety Data Sheet (SDS)?

Accepted Answer

16

Answer

GHS-aligned SDSs must contain exactly 16 sections as specified by OSHA's HazCom 2012 standard.

Question 2

A chemist discovers that a stored chemical has exceeded its peroxide formation threshold. What is the FIRST action to take?

Accepted Answer

Isolate the container and contact EHS before moving it

Answer

Peroxide-forming chemicals that exceed safe thresholds are shock-sensitive and must be isolated in place while EHS is notified before any attempt to move them.

Question 3

Which engineering control is considered the most effective in the hierarchy of controls for chemical exposure?

Accepted Answer

Elimination or substitution

Answer

Elimination or substitution sits at the top of the hierarchy of controls because it removes the hazard entirely rather than managing exposure to it.

Question 4

When disposing of a mixture containing both a listed hazardous waste and a non-hazardous solvent, how is the entire mixture classified under RCRA?

Accepted Answer

Hazardous, due to the mixture rule

Answer

Under RCRA's mixture rule, any mixture containing a listed hazardous waste is itself classified as hazardous waste regardless of the proportions.

Question 5

What does the NFPA 704 blue quadrant on a chemical placard indicate?

Accepted Answer

Health hazard

Answer

The blue (left) quadrant of the NFPA 704 diamond represents health hazard, rated from 0 (minimal) to 4 (deadly).

(CPC) Certified Professional Chemist Practice Test

(CPC) Certified Professional Chemist Practice Test

CPC Laboratory Safety & Compliance 2