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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Calibration Specification for Audiometric Equipment:Instruments for the Measurement of Auditory Evoked Potential
Specification of Performance Measurement of Hearing Assistance Devices/Systems
Earth-moving machinery-Hazard detection systems and visual aids-Performance requirements and tests
Assistive listening devices and systems for active assisted living. General
Deze norm is van toepassing op de naamgeving van wentellagers
Nomenclature of rolling hearings
Assistive listening devices and systems for active assisted living - Part 1: General
Assistive listening devices and systems for active assisted living - Part 1: General
Ancillary Services for the Visually Impaired and Hearing Impaired in Multi-Channel Sound Systems
The document specifies the general requirements for test equipment designed for use in measuring the real-ear acoustical characteristics of hearing
Electroacoustic - Equipment for the measurement of real-ear acoustical characterics of hearing aids (IEC 61669:2001); German version EN 61669:2001
Denne standard specificerer kravene til vilk?rlige hj?lpemidler i l?ngdepr?vningsteknikken i henhold til DIN 2257 Teil 1, for s? vidt der ikke findes
Measuring equipment. Requirements for inspection equipment in dimensional metrology. Auxilliary equipment
This part of IEC 60645 applies to instruments designed primarily for the measurement of acoustic impedance/admittance in the human external acoustic
Electroacoustics - Audiometric equipment - Instruments for the measurement of aural acoustic impedance/admittance
Assistive products for persons with vision impairments and persons with vision and hearing impairments. Acoustic and tactile signals for pedestrian traffic lights
The document specifies procedures and requirements for measuring the real-ear acoustical characteristics of hearing aids. Its purpose is to ensure
Procedures for the measurement of real-ear acoustical characteristics of hearing aids (ISO 12124:2001)
ACCESSORIES FOR DOMESTIC AND SIMILAR PURPOSES. COMPOSITE ACCESSORIES.
CONTROL SWITCHES. (LOW-VOLTAGE SWITCHING DEVICES FOR CONTROL AND AUXILIARY CIRCUITS,INCLUDING CONTACTOR RELAYS). PART 1. SECTION 3B : ADDITIONAL REQUIREMENTS FOR MANUAL CONTROL SWITCHES WITH POSITIVE OPENING OPERATION.
Boiler and Pressure Vessel.ASME SEC VII SUBSEC C3
Boiler Auxiliaries
ACCESSORIES FOR DOMESTIC AND SIMILAR PURPOSES. COMPOSITE ACCESSORIES.
本标准规定了电罗经和测深仪的校准方法、技术要求和技术指标;实时差分全球定位系统(DGPS)、相对全球定位系统(RGPS)、深度传感器及海水声速仪的核查方法、技术要求和技术指标。本标准适用于海上地震资料采集定位导航设备的校准和核查
Calibration guideline of positioning system and ancillary equipment for marine seismic survey
MARKING OF CONTROL SETTINGS OF HEARING A?DS
Specifies requirements and tests for terminal blocks with screw-type or screwless-type clamping units primarily intended for industrial or similar use
Low-voltage switchgear and controlgear - Ancillary equipment - Terminal blocks for copper conductors
本标准规定了船用电罗经、电缆罗经鸟、实时差分全球定位系统(DGPS)静态、电缆深度传感器、激光测距系统、相对全球定位系统(RGPS)动态、测深仪等的校准方法、技术要求和技术指标。 本标准适用于物探船用上述设备的校准
The document specifies procedures and requirements for measuring the real-ear acoustical characteristics of hearing aids. Its purpose is to ensure
Procedures for the measurement of real-ear acoustical characteristics of hearing aids (ISO 12124:2001)
This part of IEC 60645 applies to instruments designed primarily for the measurement of acoustic impedance/admittance in the human external acoustic
Electroacoustics - Audiometric equipment - Instruments for the measurement of aural acoustic impedance/admittance
Hearing aids — Part 3: Hearing aid equipment not entirely worn on the listene
本标准系规定使用在听力损失者的复健且不完全配戴在听者身上的助听设备其所有声电性能的量测方法
Hearing aid-Part3: Hearing aids equipment not entirely worn on the listener
Hearing Aids Part 3: Hearing Aids Equipment Not Entirely Worn on the Listener
Hearing aid-Part3: Hearing aids equipment not entirely worn on the listener