Glass - Viscosity and viscometric fixed points - Part 1: Principles for determining viscosity and viscometric fixed points (ISO 7884-1:1987)
Edition 1998-02

Gas fired domestic appliances producing hot water - Part 1: Assessment of performance of hot water deliveries; German version EN 13203-1:2015
Edition 2015-12

Advanced technical ceramics - Ceramic composites; Methods of test for reinforcement - Part 1: Determination of size content; German version EN 1007-1:2002
Edition 2002-12

Copper and copper alloys - Determination of main constituents and impurities by wavelength dispersive X-ray fluorescence spectrometry (XRF) - Part 1: Guidelines to the routine method; German version EN 15063-1:2014
Edition 2015-03

Meteorology - Wind measurements - Part 1: Wind tunnel test methods for rotating anemometer performance (ISO 17713-1:2007)
Edition 2007-10

Plain bearings - Wrapped bushes - Part 1: Dimensions (ISO 3547-1:2018)
Edition 2023-10

Integrated Services Digital Network (ISDN) - Facsimile group 4 class 1 equipment on the ISDN - End-to-end protocols; English version ETS 300112:1994
Edition 1994-11

Thermal energy meters - Part 1: General requirements; German version EN 1434-1:2022
Edition 2023-03

Energy efficiency of Industrial trucks - Test methods - Part 1: General; German version EN 16796-1:2016
Edition 2017-01

Separable unthreaded pipe connections for metal gas pipes - Part 1: Connections for pipes with smooth ends
Edition 2008-11