GB/T 3609.2-1983
Replaced
GB/T 7584.2-2026
Pending
National standards
GB/T 7584.2-2026 Acoustics—Hearing protectors—Part 2:Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
GB/T 7584.2-2026 Acoustics—Hearing protectors—Part 2:Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
Basic Information
Standard Code:
GB/T 7584.2-2026
Standard Type:
National standards
Standard Status:
Pending
is_force_gb:
no
CCS Name:
Labor protective gear
ICS Name:
Head protection equipment
Publish Date:
2026-02-27
Implement Date:
2026-09-01
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国声学标准化技术委员会(SAC/TC 17)
Pages:
24 pages
Scope
本文件描述了估算戴护听器时有效的A计权声压级的3种方法(倍频带法、HML法和SNR法)。这3种方法既适用于噪声的声压级，又适用于噪声的等效连续声压级。本文件规定的方法主要适用于稳态噪声暴露，也适用于包含有脉冲分量的噪声。本文件可能不适于用峰值声压级测量。
倍频带值、H值、M值、L值或SNR值适用于建立声衰减评价标准，以便于选择和比较护听器，并制定声衰减的最低要求。
Development Information
Drafting Units:
中国科学院声学研究所、同济大学、杭州爱华智能科技有限公司、中国人民解放军总医院第六医学中心、华东师范大学、中国计量科学研究院、浙江科技大学、苏州声学产业技术研究院有限公司
Drafting Persons:
李晓东、郑成诗、田静、程晓斌、刘智颖、杨军、毛东兴、俞悟周、熊文波、冀飞、于宁、桑晋秋、何龙标、牛锋、李争光、韩峰
Same series standard
GB/T 7584.1-2026 Acoustics—Hearing protectors—Part 1:Subjective method for the measurement of sound attenuation
GB/Z 7584.5-2026 Acoustics—Hearing protectors—Part 5:Method for estimation of noise reduction using fitting by inexperienced test subjects
GB/T 7584.6-2026 Acoustics—Hearing protectors—Part 6:Determination of sound attenuation of active noise reduction earmuffs
Replace the following standards
Referenced Standards
GB/T 21230-2014 Acoustics—Determination of occupational noise exposure—Engineering method
ISO 4869-1
IEC 61672-1
Adopt standards
ISO 4869-2:2018
Related Standards
GB/T 3609.3-1983
Replaced
GB/T 3609.3-1983 Methods of optical test for welding goggles
GB 6095-1985
Replaced
GB 6095-1985 Safety belts
GB/T 6096-1985
Replaced
GB/T 6096-1985 Inspect and examine method for safety belts
GB 6220-1986
Replaced
GB 6220-1986 Long tube respirators
GB 6221-1986
Replaced