ÖNORM EN ISO 4869-3:2007-09

Действует

Acoustics - Hearing protectors - Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture (ISO 4869-3:2007)

Ссылочные документы

Действует

Rubber, vulcanized or thermoplastic -- Determination of hardness -- Part 1: Introduction and guidance — 12 стр.

Заменен

Acoustics; hearing protectors; part 1: subjective method for the measurement of sound attenuation — 10 стр.

Действует

Scales and sizes for plotting frequency characteristics and polar diagrams — 28 стр.

Действует

Amendment 1 - Electroacoustics - Octave-band and fractional-octave band filters - Part 2: Pattern evaluation tests — 4 стр.

Действует

Measurement microphones - Part 4: Specifications for working standard microphones — 23 стр.

Заменен

Sound system equipment - Part 7: Headphones and earphones (IEC 60268-7:2010) (english version)

Действует

Hearing protectors - Testing - Part 2: Acoustic test methods