Quartz crystal units for frequency control and selection; part 2: guide to the use of quartz crystal units for frequency control and selection; identical with IEC 60122-2:1983
Edition 1993-09

Sound system equipment - Part 10: Peak programme level meters (IEC 60268-10:1991); German version HD 483.10 S1
Edition 1994-11

Quartz crystal controlled oscillators - Part 2: Guide to the use of quartz crystal controlled oscillators (IEC 60679-2:1981)
Edition 1997-09

Telecontrol equipment and systems - Part 5: Transmission protocols; section 1: Transmission frame formats (IEC 60870-5-1:1990); German version EN 60870-5-1:1993
Edition 1994-07

Mathematical expressions for reliability, availability, maintainability and maintenance support terms (IEC 61703:2016); German version EN 61703:2016
Edition 2017-08

Underwater acoustics - Hydrophones - Calibration of hydrophones - Part 2: Procedures for low frequency pressure calibration (IEC 60565-2:2019); German version EN IEC 60565-2:2019
Edition 2022-01

German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 51: Calibration of analytical methods - Linear calibration (A 51)
Edition 2017-05

Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique (IEC 61094-2:2009); German version EN 61094-2:2009
Edition 2009-09

Stationary lead-acid batteries - Part 21: Valve regulated types - Methods of test (IEC 60896-21:2004); German version EN 60896-21:2004
Edition 2004-12

Test methods for electrical and magnetic properties of magnetic powder cores (IEC 63300:2023); German version EN IEC 63300:2023
Edition 2024-09