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BS EN 61183
Electroacoustics. Random-incidence and diffuse-field calibration of sound level meters
Edition
1995-11-15
SN EN 61183
Electroacoustics - Random-incidence and diffuse-field calibration of sound level meters
Edition
1994-08
NF S31-011 ; NF EN 61183:1994-12-01
Electroacoustics. Random-incidence and diffuse-field calibration of soud level meters
Edition
1994-12-01
BS ISO 17497-1+A1
Acoustics - Sound scattering properties of surfaces - Measurement of the random-incidence scattering coefficient in a reverberation room
Edition
2004-07-22
ISO 17497-1 AMD 1
Acoustics - Sound-scattering properties of surfaces - Part 1: Measurement of the random-incidence scattering coefficient in a reverberation room; Amendment 1
Edition
2014-12
ISO 17497-1
Acoustics - Sound-scattering properties of surfaces - Part 1: Measurement of the random-incidence scattering coefficient in a reverberation room
Edition
2004-05
VDI/VDE 5575 Blatt 1
X-ray optical systems - Terms and definitions
Edition
2018-09
VDI/VDE 5575 Blatt 4
X-ray optical systems - X-ray mirrors and X-ray mirror systems - Total reflection mirrors and multilayer mirrors
Edition
2018-09
VDI/VDE 5596 Blatt 2
Optical design for manufacturing - Illumination optics, non-imaging and freeform optics - Optical surfaces
Edition
2022-09
VDI 2310 Blatt 12
Maximum ambient concentrations referring to human health - Maximum ambient concentrations for nitrogen dioxide
Edition
2004-12
