German standard methods for the examination of water, waste water and sludge; bio-assays (group L); surfactant biodegradation and elimination test for simulation of municipal waste water treatment plants (L 26)
Edition 1994-05

Surface active agents - Bio-based surfactants - Requirements and test methods; German version EN 17035:2021
Edition 2021-12

German standard methods for the examination of water, waste water and sludge - Sludge and sediments (group S) - Part 19: Determination of the steam-volatile organic acids (S 19)
Edition 1999-12

Milk, milk products, infant formula and adult nutritionals - Determination of chloride - Potentiometric titration method (ISO 21422:2018, Corrected version 2021-03)
Edition 2022-04

Indoor air - Part 31: Measurement of flame retardants and plasticizers based on organophosphorus compounds - Phosphoric acid ester (ISO 16000-31:2014)
Edition 2014-09

Foodstuffs - Determination of vitamin B6 (including its glycosylated forms) by HPLC; German version EN 14663:2005
Edition 2006-03

Petroleum and natural gas industries - Field testing of drilling fluids - Part 1: Water-based fluids (ISO 10414-1:2008); German version EN ISO 10414-1:2008
Edition 2009-04

Requirements for design and testing of vacuum cleaners for use in potentially explosive atmospheres; German version EN 17348:2022
Edition 2022-09

Paints and varnishes - Vocabulary (ISO 4618:2023); Trilingual version EN ISO 4618:2023
Edition 2023-05

Petroleum and natural gas industries - Drilling fluids - Processing equipment evaluation (ISO 13501:2011); English version EN ISO 13501:2011
Edition 2011-09