German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 44: Determination of selected heterocyclic aromatic hydrocarbons (NSO heterocycles) in water - Method using gas chromatography and mass spectrometry (GC/MS) after solid-phase extraction (SPE) (F 44)
Edition 2018-02

German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 36: Determination of selected active substances of plant protection products and other organic substances in water - Method using high performance liquid chromatography and mass spectrometric detection (HPLC-MS/MS or -HRMS) after direct injection (F 36)
Edition 2014-09

Industrial systems, installations and equipment and industrial products - Designation of signals - Part 1: Basic rules (IEC 61175-1:2015); German version EN 61175-1:2015
Edition 2016-05

Testing of petroleum products - Method for sample preparation - Part 2: Incineration/oxide ash
Edition 2016-12

German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 37: Determination of organochlorine pesticides, polychlorinated biphenyls and chlorobenzene in water - Method using gas chromatography and mass spectrometric detection (GC-MS) after liquid-liquid extraction (F 37)
Edition 2013-11

German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 39: Determination of selected polycyclic aromatic hydrocarbons (PAH) - Method using gas chromatography with mass spectrometric detection (GC-MS) (F 39)
Edition 2011-09

Industrial-process control valves - Part 8-3: Noise considerations - Control valve aerodynamic noise prediction method (IEC 60534-8-3:2010); German version EN 60534-8-3:2011
Edition 2011-10

Testing of oxidic raw materials and materials for ceramics, glass and glazes - Part 2: Determination of Ag, As, B, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cu, Er, Eu, Fe, La, Mg, Mn, Mo, Nd, Ni, P, Pb, Pr, S, Sb, Se, Sn, Sr, Ti, V, W, Y, Yb, Zn, Zr by optical emission spectrometry with inductively coupled plasma (ICP OES)
Edition 2004-07

Total reflection X-ray fluorescence - Principles and definitions
Edition 2022-05

Testing of petroleum products - Method for sample preparation - Part 1: Microwave incineration
Edition 2007-11