German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 11: Sampling of waste water (A 11)
Edition 2009-02

German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 13: Design and performance of the sampling of groundwater (A 13)
Edition 2021-12

German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 62: Plausibility check of analytical data by performing an ion balance (A 62)
Edition 2014-12

German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 45: Interlaboratory comparisons for proficiency testing of laboratories (A 45)
Edition 2014-06

Railway vehicles and vehicles; current collectors for trolley buses, short designations and terms of dimensions
Edition 1956-02

German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 71: Equivalence of two analysis methods based on the comparison of analysis results (A 71)
Edition 2020-10

German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 60: Analytical quality assurance for chemical and physicochemical water analysis (A 60)
Edition 2013-12

Health informatics - Explicit time-related expressions for healthcare-specific problems (ISO 12381:2019); English version EN ISO 12381:2019
Edition 2019-12