- NOHSC: 1007 (2000) - National Standard for Occupational Noise (AUS/NZ)
- ANSI S12.6/1997 - Method B - Attenuation Test Protocol (BR)
- NR 15 - Security and Health of Work, Annexes 1 and 2, n°3.214/1978 - Occupational Noise Regulations (BR)
- 9001:2008 - ISO
- EN 352-2:2002 - EU Standards
- Category II - EC Category/PPE
