Water quality - Spectrophotometric determination of chlorophyll-a content by ethanol extraction for the routine monitoring of water quality; German and English version prEN 17899:2022
Edition 2022-10

Petroleum and natural gas industries - Materials for use in H₂S-containing environments in oil and gas production - Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys (ISO/FDIS 15156-3:2020); German and English version prEN ISO 15156-3:2020
Edition 2020-09

German standard methods for the examination of water, waste water and sludge - Parameters characterizing effects and substances (group H) - Part 60: Spectrometric determination of the chlorophyll-a concentration in water (H 60)
Edition 2019-12

Carrier cycles - Part 4: Heavy weight carrier cycles - Mechanical and functional aspects; German and English version prEN 17860-4:2024
Edition 2024-08

Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 4: Specific principles for shutoff devices as penstocks, sluice gates, stoplogs etc.
Edition 2000-11

Mechanical standardization of semiconductor devices - Part 6-18: General rules for the preparation of outline drawings of surface mounted semiconductor device packages - Design guide for ball grid array (BGA) (IEC 60191-6-18:2010 + Cor. :2010); German version EN 60191-6-18:2010
Edition 2010-08

Fibre organisers and closures to be used in optical fibre communications systems - Product specifications - Part 2-9: Non-sealed closures for air blown fibre microduct cable, for category S & A; German version EN 50411-2-9:2010
Edition 2010-09

Soil quality - Physical laboratory tests - Part 16: Determination of aggregate stability using the method of wet sieving
Edition 2015-12

Conservation of Cultural Heritage - Guidelines and procedures for choosing appropriate lighting for indoor exhibitions; German and English version prEN 16163:2023
Edition 2023-01

In-service inspections for primary coolant circuit components of light water reactors - Part 2: Magnetic particle and penetrant testing
Edition 2021-05