Optics and photonics - Environmental test methods - Part 7: Resistance to drip or rain (ISO 9022-7:2015)
Edition 2015-08

Optics and photonics - Environmental test methods - Part 11: Mould growth (ISO 9022-11:2015)
Edition 2016-02

Optics and photonics - Environmental test methods - Part 4: Salt mist (ISO 9022-4:2014)
Edition 2015-06

German standard methods for examination of water, waste water and sludge - Anions (group D) - Part 7: Determination of cyanides in low polluted water by liquid chromatography of ions or potentiometric titration (D 7)
Edition 2002-04

Methods of test for mortar for masonry - Part 10: Determination of dry bulk density of hardened mortar; German version EN 1015-10:1999+A1:2006
Edition 2007-05

Recreational diving services - Requirements for the training of recreational scuba divers - Part 1: Level 1 - Supervised diver (ISO 24801-1:2014); German version EN ISO 24801-1:2014
Edition 2014-08

German standard methods for the examination of water, waste water and sludge; anions (group D); determination of fluoride (D 4)
Edition 1985-07

German standard methods for the examination of water, waste water and sludge - Cations (group E) - Part 6: Determination of lead by atomic absorption spectrometry (AAS) (E 6)
Edition 1998-07

German standard methods for the examination of water, waste water and sludge - Cations (group E) - Part 33: Determination of manganese by atomic absorption spectrometry (E 33)
Edition 2000-06

German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of the chemical oxygen demand (COD), ranging from 5 to 50 mg/l (H 44)
Edition 1992-05