Influence of materials on water intended for human consumption - Influence due to migration - Part 4: Test method for water treatment membranes; German version EN 12873-4:2021
Edition 2022-01

Bonded abrasive products - Permissible unbalances of grinding wheels as delivered - Static testing (ISO 6103:2014); German version EN ISO 6103:2014
Edition 2015-02

Optics and optical instruments - Microscopes - Reference system of polarized light microscopy (ISO 8576:1996)
Edition 2002-06

Methods of test for masonry - Part 1: Determination of compressive strength; German version EN 1052-1:1998
Edition 1998-12

Petroleum, petrochemical and natural gas industries - Non-metallic materials in contact with media related to oil and gas production - Part 2: Elastomers (ISO 23936-2:2011); English version EN ISO 23936-2:2011
Edition 2012-03

German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 17: Determination of selected nitroaromatic compounds by gas-liquid chromatography (F 17)
Edition 1999-02

Water quality - Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivatization (ISO 15913:2000); German version EN ISO 15913:2003
Edition 2003-05

Semiconductor devices - Hot carrier test on MOS transistors (IEC 62416:2010); German version EN 62416:2010
Edition 2010-12

Fans; technical delivery conditions
Edition 1989-01

Testing of materials for semiconductor technology - Test method for particle analysis in liquids - Part 1: Microscopic determination of particles
Edition 1995-11