Testing of liquid petroleum hydrocarbons; determination of chlorine content; Wickbold combustion method
Edition 1983-06

Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants; German version EN 12255-15:2003
Edition 2004-04

Fertilizers - Determination of complexed micro-nutrient ions in fertilizers - Identification of lignosulfonates; German version EN 16109:2011
Edition 2012-01

Chemicals used for treatment of water intended for human consumption - Sodium disulfite; German version EN 12121:2022
Edition 2023-03

Plastics - Phenolic resins - Classification and test methods (ISO 10082:1999); German version EN ISO 10082:1999
Edition 2000-12

Phenolic, amino and condensation resins - Determination of free-formaldehyde content (ISO 11402:2004); German version of EN ISO 11402:2005
Edition 2005-09

Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 2: Enumeration of Clostridium perfringens by colony-count technique (ISO 15213-2:2023); German version EN ISO 15213-2:2023
Edition 2024-05

Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 3: Determination of chromate, iodide, sulfite, thiocyanate and thiosulfate (ISO 10304-3:1997); German version EN ISO 10304-3:1997
Edition 1997-11

Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 3: Detection of Clostridium perfringens (ISO/TS 15213-3:2024); German version CEN ISO/TS 15213-3:2024
Edition 2024-10