Which table in NFPA 72 provides permissible noise exposure durations?

Which table in NFPA 72 provides permissible noise exposure durations?

• A. Table A.18.4.1.2.
• B. Table 3.1.
• C. Table 9.6.1
• D. Table 4.3.2

Answer: (A)

The question is testing where NFPA 72 stores data about how long people can be exposed to certain noise levels. That information is found in the informational annex, specifically table Table A.18.4.1.2. It’s the table that lays out permissible exposure durations corresponding to different sound levels produced by fire alarm notification appliances. Because this is supplementary data meant to guide noise and hearing-safety considerations, it’s the correct place to look for exposure-duration limits. The other tables mentioned are focused on different topics within NFPA 72 and do not provide the exposure-duration data needed for assessing noise safety, so they aren’t the right reference for this question.

The question is testing where NFPA 72 stores data about how long people can be exposed to certain noise levels. That information is found in the informational annex, specifically table Table A.18.4.1.2. It’s the table that lays out permissible exposure durations corresponding to different sound levels produced by fire alarm notification appliances. Because this is supplementary data meant to guide noise and hearing-safety considerations, it’s the correct place to look for exposure-duration limits.

The other tables mentioned are focused on different topics within NFPA 72 and do not provide the exposure-duration data needed for assessing noise safety, so they aren’t the right reference for this question.