Acoustics; determination of sound power levels of noise sources; precision methods for broad-band sources in reverberation rooms (ISO 3741:1988); german version EN 23741:1991— 16 стр.
Acoustics; determination of sound power levels of noise from air terminal devices, high/low velocity/pressure assemblies, dampers and valves by measurement in a reverberation room (ISO 5135:1984); german version EN 25135:1991— 14 стр.
Acoustics; determination of sound power levels of noise sources; precision methods for discrete-frequency and narrow-band sources in reverberation rooms (ISO 3742:1988); german version EN 23742:1991— 11 стр.
Acoustics; test code for the measurement of airborne noise emitted by rotating electrical machinery; part 2: survey method (ISO 1680-2:1986); german version EN 21680-2:1991— 14 стр.
Acoustics; test code for the measurement of airborne noise emitted by rotating electrical machinery; part 1: engineering method for free-field conditions over a reflecting plane (ISO 1680-1:1986); german version EN 21680-1:1991— 15 стр.
Measurement of airborne noise emitted by machines; enveloping surface method; machine sets in hydroelectric power stations and water pumping plants— 11 стр.
Measurement of airborne noise emitted by machines; enveloping surface method; machines and equipment for the manufacture of concrete blocks, slabs, pipes and prefabricated elements— 14 стр.
Acoustics - Determination of sound insulation performances of enclosures - Part 1: Measurements under laboratory conditions (for declaration purposes) (ISO 11546-1:1995); German version EN ISO 11546-1:1995— 15 стр.
Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room (ISO 5135:1997); German version EN ISO 5135:1998— 13 стр.
Measurement of noise emitted by machines; airborne noise emission; enveloping surface method and in-duct method; fan-assisted warm air generators, fan-assisted air heaters and fan units of air handling devices— 6 стр.
