Số hiệu tiêu chuẩn
EN ISO 4869-2
Tên tiêu chuẩn
Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:1994)
Ngày phát hành
1995-06-00
Tiêu chuẩn tương đương
DIN EN ISO 4869-2 (1995-08), IDT * BS EN ISO 4869-2 (1995-03-15), IDT * NF S31-062-2 (1995-08-01), IDT * ISO 4869-2 (1994-09), IDT * SN EN ISO 4869-2 (1995), IDT * SN EN ISO 4869-2/AC (2007-09), IDT * OENORM EN ISO 4869-2 (1995-10-01), IDT * PN-EN ISO 4869-2 (2002-05-17), IDT * SS-EN ISO 4869-2 (1995-11-17), IDT * UNE-EN ISO 4869-2 (1996-05-23), IDT * UNI EN ISO 4869-2:1998 (1998-12-31), IDT * STN EN ISO 4869-2 (1998-04-01), IDT * CSN ISO 4869-2 (1996-02-01), IDT * DS/EN ISO 4869-2 (1995-10-12), IDT * NEN-EN-ISO 4869-2:1995 en (1995-08-01), IDT * SFS-EN ISO 4869-2:en (2014-04-17), IDT
Từ khóa
Acoustic testing * Acoustics * Assessment * Damping * Definitions * Ear protectors * Frequencies * Insulations * Mathematical calculations * Methods * Methods of calculation * Noise * Noise control * Protective clothing * Protective effectiveness * Rating tests * References * Sonic testing * Sound * Sound attenuation * Sound insulation * Sound pressure * Sound pressure level * Testing * Procedures * Processes