Rolling bearings - Noise testing of rolling bearing greases - Part 4: Test and evaluation method NQ (ISO 21250-4:2020)
Edition 2023-09

Electroacoustics - Octave-band and fractional-octave-band filters - Part 2: Pattern-evaluation tests (IEC 61260-2:2016 + AMD1:2017); German version EN 61260-2:2016 + A1:2017
Edition 2018-01

Electroacoustics - Octave-band and fractional-octave-band filters - Part 3: Periodic tests (IEC 61260-3:2016); German version EN 61260-3:2016
Edition 2016-09

Methods of measurement for equipment used in terrestrial radio-relay systems; measurements for sub-systems; frequency modulators; identical with IEC 60487-2-4, edition 1984
Edition 1988-08

Telecommunication - Part 1: Basic concepts
Edition 1994-11

Methods of measurement for equipment used in terrestrial radio-relay systems; measurements for sub-systems; frequency demodulators; identical with IEC 60487-2-5:1984
Edition 1989-08

Rolling bearings - Measuring methods for vibration - Part 2: Radial ball bearings with cylindrical bore and outside surface (ISO 15242-2:2015)
Edition 2018-08

Rolling bearings - Measuring methods for vibration - Part 4: Radial cylindrical roller bearings with cylindrical bore and outside surface (ISO 15242-4:2017)
Edition 2019-06

Energy management system application program interface (EMS-API) - Part 302: Common information model (CIM) dynamics (IEC 61970-302:2018); German version EN IEC 61970-302:2018
Edition 2019-12

Procedure for calculating loudness level and loudness
Edition 1991-03