Hearing protection devices must conform to which standards?

• A. ANSI Z87.1
• B. ANSI S3.19
• C. ANSI S12.6
• D. ANSI S3.19 or S12.6

Answer: (D)

The key idea is that hearing protection devices are evaluated using standardized testing methods so their attenuation can be quantified and compared reliably. Two ANSI standards cover this testing and labeling: one method focuses on real-ear measurements in human listeners (the real-ear attenuation approach), and the other outlines laboratory procedures using standardized equipment to measure attenuation. Because both sets of procedures are recognized and provide consistent ways to determine how much noise a protector reduces, either standard is acceptable for conforming products. That’s why the correct understanding is that hearing protection devices must conform to ANSI S3.19 or ANSI S12.6. The other option isn’t relevant here, since ANSI Z87.1 relates to eye and face protection, not hearing protection.