Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO/DIS 3744:2023)
Edition 2023-02-15

Radiological protection - X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 2: Dosimetry for radiation protection over the energy ranges from 8 keV to 1,3 MeV and 4 MeV to 9 MeV (ISO 4037-2:2019)
Edition 2021-08-01

Refrigerant compressors - Rating conditions, tolerances and presentation of manufacturer's performance data
Edition 2013-09-01

Electromagnetic compatibility (EMC) - Part 4-20: Testing and measurement techniques - Emission and immunity testing in transverse electromagnetic (TEM) waveguides (IEC 61000-4-20:2010)
Edition 2012-10-01

Measurement of quartz crystal unit parameters - Part 11: Standard method for the determination of the load resonance frequency fL and the effective load capacitance CLeff using automatic network analyzer techniques and error correction (IEC 60444-11:2010) (german version)
Edition 2011-08-01

Continuously working concentration measurement equipment for emissions of air contaminants - Requirements, installation and maintenance
Edition 1999-11-01

Postal services - Mail item processing - Optical characteristics for processing letters
Edition 2003-04-01