German standard methods for the examination of water, waste water and sludge; bio-assays (group L); determining the tolerance of Daphnia to the toxicity of waste water by way of a dilution series (L 30)
Edition 1989-03

Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; service description; english version ETS 300136:1992
Edition 1992-12

Terminal Equipment (TE) - Facsimile group 4 class 1 equipment on the Integrated Services Digital Network (ISDN) - Terminal testing; English version ETS 300280:1994/A1:1996
Edition 1996-10

Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; functional capabilities and information flows; english version ETS 300137:1992
Edition 1992-12

Integrated Services Digital Network (ISDN) - Facsimile group 4 class 1 equipment on the ISDN - End-to-end protocol tests (Interconnection capability testing); English version ETS 300155:1995
Edition 1995-08

Intelligent Network (IN) - Intelligent Network Capability Set 3 (CS3); Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification - Part 1: Basic capability set of CS3 (Endorsement of the English version EN 301934-1 V 1.1.1 (2003-01) as German standard)
Edition 2003-07

German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 22: Determination of Glyphosate and Aminomethyl phosphic acid (AMPA) by high performance liquid chromatography (HPLC), post-column derivatization and fluorescence detection (F 22)
Edition 2001-10

German standard methods for the examination of water, waste water and sludge - Biological-ecological analysis of water (group M) - Part 1: Determination of the saprobic index in running waters (M 1)
Edition 2004-10

Intelligent Network (IN) - Intelligent Network Application Protocol (INAP); Capability Set 2 (CS2) - Part 1: Protocol specification (Endorsement of the English version EN 301140-1 V 1.3.4 (1999-06) as German Standard)
Edition 2001-09

German standard methods for examination of water, waste water and sludge - Cations (group E) - Part 8: Determination of zinc - Method by atomic absorption spectrometry (AAS) using an air-ethine flame (E 8)
Edition 2004-10