Chemical Safety and Hazard Communication Flashcards
7 cards from real CSS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Chemical Safety and Hazard Communication flashcards as text
A chemical with a vapor density greater than 1.0 will behave in which of the following ways when released into the air?
Answer: Settle and accumulate in low-lying areas such as pits and trenches
Vapor density greater than 1.0 means the vapor is heavier than air (air = 1.0) and will sink and accumulate in low areas, increasing risk in pits, trenches, and confined spaces.
Which OSHA standard specifically governs the storage and handling of flammable and combustible liquids in general industry?
Answer: 29 CFR 1910.106
29 CFR 1910.106 covers flammable liquids storage, handling, and use requirements including approved containers, storage rooms, and quantity limits.
What is the primary purpose of a Chemical Hygiene Plan required under OSHA's laboratory standard (29 CFR 1910.1450)?
Answer: To protect laboratory employees from hazardous chemical health effects
The Chemical Hygiene Plan is a written program specifying the procedures, equipment, PPE, and work practices that protect laboratory workers from chemical hazards.
Under the GHS hazard category numbering system, which category number represents the MOST severe hazard?
Answer: Category 1
In GHS, Category 1 always represents the most severe or most hazardous classification within any given hazard class — numbers increase as severity decreases.
The Safety Data Sheet (SDS) format replaced which older document format in the United States?
Answer: Material Safety Data Sheet (MSDS)
OSHA's 2012 HazCom revision aligned with GHS and replaced the variable-format MSDS with the standardized 16-section SDS.
When a chemical presents multiple hazards (e.g., both flammable and acutely toxic), how must the SDS label address these hazards?
Answer: All applicable hazard information and pictograms must be included on the label
GHS requires that labels include all applicable hazard pictograms, signal words, hazard statements, and precautionary statements for every hazard class the chemical falls under.
Under OSHA's HazCom 'right-to-know' principle, which of the following best describes employees' entitlement?
Answer: Workers have the right to access information about hazardous chemicals they may be exposed to
The 'right-to-know' foundation of HazCom ensures workers can access SDS information, read labels, and receive training on chemical hazards in their work environment.