Hazardous Materials (HazMat) Flashcards
6 cards from real Safety & Emergency practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Hazardous Materials (HazMat) flashcards as text
What level of PPE provides the highest degree of skin, eye, and respiratory protection?
Answer: Level A
Level A PPE includes a fully encapsulating chemical-resistant suit and SCBA, providing the maximum skin and respiratory protection.
What does the GHS signal word 'Danger' indicate compared to 'Warning'?
Answer: More severe hazard category
Under GHS, 'Danger' indicates the more severe hazard categories (1–2) while 'Warning' is used for less severe categories (3–5).
What is the purpose of a Safety Data Sheet (SDS) Section 4?
Answer: First aid measures
Section 4 of the GHS-standardized SDS covers first aid measures, including symptoms and required treatment for exposure routes.
What does TLV-TWA stand for in industrial hygiene?
Answer: Threshold Limit Value – Time-Weighted Average
TLV-TWA (Threshold Limit Value – Time-Weighted Average) is the ACGIH-recommended average airborne concentration for an 8-hour workday that most workers can be exposed to without adverse effects.
Which UN hazard class covers explosive substances?
Answer: Class 1
UN Dangerous Goods Class 1 covers explosives, subdivided by type of explosive hazard (mass explosion, projection hazard, etc.).
What color is the DOT placard for oxidizers?
Answer: Yellow
DOT Class 5.1 oxidizer placards are yellow with black text and the word OXIDIZER, warning of substances that can accelerate combustion.