Certified Fire Protection Specialist (CFPS) — Question 3

Which of the following materials is considered by NFPA to be a Group A plastic?

Answer options

• A. Butyl rubber
• B. Natural rubber (not expanded)
• C. Silicone rubber
• D. Cloroprene rubber

Correct answer: A

Explanation

Butyl rubber is classified as a Group A plastic by the NFPA due to its high flammability and heat release characteristics. The other options, such as natural rubber, silicone rubber, and chloroprene rubber, do not meet the criteria for Group A plastics based on their combustion properties.