
发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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本部分规定了使用专用声学侧试装置测量耳罩式护听器插人损失的方法。 本部分规定的方法不作为产品型式鉴定检验的基本测试方法。此方法获得的耳罩式护听器性能数据并不用于表征耳罩的真耳声衰减或耳翠所提供的防护性能。 本部分适用于产品型式鉴定检验或认证规程中产品性能一致性的调查,也适用于产品性能老化的调查
Acoustics.Hearing protectors.Part 3:Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture
Technical specifications for eavesdropping device identification
This list has been prepared for use by or for the Government in the acquisition of products covered by the subject non-government standard
AURAL PROTECTOR, SOUND [Superseded: NAVY QPL-23899 -10 CANC NOTICE 1, NAVY QPL-23899 -10, NAVY QPL-23899 -9, NAVY QPL-23899 -8, NAVY QPL-23899 -7, NAVY QPL-23899 -6, NAVY QPL-23899 -5, NAVY QPL-23899 -4, NAVY QPL-23899 -3, NAVY QPL-23899 -2, N
Protector, Hearing
Evaluation method of protective performance of military hearing protectors
本标准规定了耳罩式和耳塞式护听器的要求、物理性能测试、声学性能测试及标识等。本标准适用于在工作场所中使用的耳罩式和耳塞式护听器。本标准不适用于带孔或阀的护听器的声学性能测试和带电路护听器的电路开启状态下的声学性能测试
Personal protective equipment.General technical requirements for hearing protectors
Telephony for Hearing Impaired People; Inductive Coupling of Telephone Earphones to Hearing Aids
本标准规定了护听器的选择原则、方法和培训要求。 本标准适用于工业企业噪声作业场所护听器类个人防护用品的选择。其他行业可参考执行。 本标准不适用于头盔和应用电子技术的特殊类型护听器的选择。本标准不适用于脉冲噪声的防护
Guideline for selection of hearing protectors
This standard specifies laboratory-based procedures for measuring, analyzing, and reporting the passive noise-reducing capacity of hearing protection
Methods for Measuring the Real-Ear Attenuation of Hearing Protectors
Hearing protectors — Requirements
Hearing protectors — Requirements
This Standard specifies requirements for the design, materials, and performance of conventional hearing protectors. It also provides guidance
Acoustics - Hearing Protectors
AURAL PROTECTOR, SOUND
本部分规定了使用专用声学侧试装置测量耳罩式护听器插人损失的方法。 本部分规定的方法不作为产品型式鉴定检验的基本测试方法。此方法获得的耳罩式护听器性能数据并不用于表征耳罩的真耳声衰减或耳翠所提供的防护性能。 本部分适用于产品型式鉴定检验或认证规程中产品性能一致性的调查,也适用于产品性能老化的调查
Acoustics.Hearing protectors.Part 3:Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture
Technical specifications for eavesdropping device identification
This list has been prepared for use by or for the Government in the acquisition of products covered by the subject non-government standard
AURAL PROTECTOR, SOUND [Superseded: NAVY QPL-23899 -10 CANC NOTICE 1, NAVY QPL-23899 -10, NAVY QPL-23899 -9, NAVY QPL-23899 -8, NAVY QPL-23899 -7, NAVY QPL-23899 -6, NAVY QPL-23899 -5, NAVY QPL-23899 -4, NAVY QPL-23899 -3, NAVY QPL-23899 -2, N
Protector, Hearing
Evaluation method of protective performance of military hearing protectors
本标准规定了耳罩式和耳塞式护听器的要求、物理性能测试、声学性能测试及标识等。本标准适用于在工作场所中使用的耳罩式和耳塞式护听器。本标准不适用于带孔或阀的护听器的声学性能测试和带电路护听器的电路开启状态下的声学性能测试
Personal protective equipment.General technical requirements for hearing protectors
Telephony for Hearing Impaired People; Inductive Coupling of Telephone Earphones to Hearing Aids
本标准规定了护听器的选择原则、方法和培训要求。 本标准适用于工业企业噪声作业场所护听器类个人防护用品的选择。其他行业可参考执行。 本标准不适用于头盔和应用电子技术的特殊类型护听器的选择。本标准不适用于脉冲噪声的防护
Guideline for selection of hearing protectors
This standard specifies laboratory-based procedures for measuring, analyzing, and reporting the passive noise-reducing capacity of hearing protection
Methods for Measuring the Real-Ear Attenuation of Hearing Protectors
Hearing protectors — Requirements
Hearing protectors — Requirements
This Standard specifies requirements for the design, materials, and performance of conventional hearing protectors. It also provides guidance
Acoustics - Hearing Protectors
AURAL PROTECTOR, SOUND








