Fertilizers - Determination of urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT) using high-performance liquid chromatography (HPLC); German version EN 15688:2008
Edition 2008-11

Fertilizers - Determination of nitrification inhibitor DMPSA in fertilizers - Method using high-performance liquid chromatography (HPLC); German version EN 17090:2018
Edition 2019-01

Algae and algae products - Terms and definitions; German version EN 17399:2020
Edition 2020-05

Fertilizers - Determination of magnesium by atomic absorption spectrometry; German version EN 16197:2012
Edition 2013-01

Fertilizers and liming materials - Determination of mercury by vapour generation (VG) after aqua regia dissolution; German version EN 16320:2013+A1:2017
Edition 2017-05

Foodstuffs - Determination of zearalenone in edible vegetable oils by LC-FLD or LC-MS/MS; German version EN 16924:2017
Edition 2017-08

Foodstuffs - Determination of vitamin B1 by high performance liquid chromatography; German version EN 14122:2014
Edition 2014-08

Ophthalmic implants - Intraocular lenses - Part 2: Optical properties and test methods (ISO 11979-2:2014); German version EN ISO 11979-2:2014
Edition 2014-12

Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 % to 45 % of ZrO₂ (alternative to the X-ray fluorescence method) - Part 2: Wet chemical analysis (ISO 21079-2:2008); German version EN ISO 21079-2:2008
Edition 2008-08

Plastics - Methods of exposure to laboratory light sources - Part 1: General guidance (ISO/DIS 4892-1:2023); German and English version prEN ISO 4892-1:2023
Edition 2023-11