German standard methods for the examination of water, waste water and sludge; cations (group E); determination of copper by atomic absorption spectrometry (AAS) (E 7)
Edition 1991-09

Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)
Edition 1998-11

Plastics - Poly(vinyl chloride) (PVC) based profiles - Determination of the resistance to artificial weathering; German version EN 513:2018
Edition 2019-03

German standard methods for the examination of water, waste water and sludge - Cations (group E) - Part 32: Determination of iron by atomic absorption spectrometry (E 32)
Edition 2000-05

German standard methods for the examination of water, waste water and sludge; cations (group E); determination of nickel by atomic absorption spectrometry (AAS) (E 11)
Edition 1991-09

German standard methods for the examination of water, waste water and sludge; cations (group E); determination of cobalt by atomic absorption spectrometry (AAS) (E 24)
Edition 1993-03

Optics and photonics - Test methods for telescopic systems - Part 9: Test methods for field curvature (ISO 14490-9:2019)
Edition 2021-01

Native starch - Determination of starch content - Ewers polarimetric method (ISO 10520:1997); German version EN ISO 10520:1998
Edition 1998-12

General methods of test for pigments - Part 19: Determination of water-soluble nitrates (Salicylic acid method) (ISO 787-19:2020); German version EN ISO 787-19:2020
Edition 2020-07

Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of thickness of ceramic films by contact-probe profilometer (ISO 18452:2005); German version EN ISO 18452:2016
Edition 2016-09