Workplace exposure - Guide for the use of direct-reading instruments for aerosol monitoring - Part 2: Evaluation of airborne particle concentrations using Optical Particle Counters
Edition 2014-02

Workplace exposure - Guide for the use of direct-reading instruments for aerosol monitoring - Part 3: Evaluation of airborne particle concentrations using photometers
Edition 2014-09

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

Haematology - Determination of the concentration of blood corpuscles in blood - Part 3: Reference method for the determination of the concentration of erythrocytes; Text in German and English
Edition 2024-02

Haematology - Determination of the concentration of blood corpuscles in blood - Part 4: Reference procedure for the determination of the concentration of leucocytes
Edition 2003-07

Haematology - Determination of the concentration of blood corpuscles in blood - Part 5: Reference method for the determination of the concentration of thrombocytes; Text in German and English
Edition 2007-10

Haematology - Determination of the concentration of blood corpuscles in blood - Part 6: Reference method for the determination of the concentration of CD4 positive lymphocytes; Text in German and English
Edition 2021-08

Workplace exposure - Procedures for the determination of the concentration of chemical agents - Basic performance requirements; German version EN 482:2021
Edition 2021-05

Testing hardened concrete - Part 10: Determination of the carbonation resistance of concrete at atmospheric levels of carbon dioxide; German version EN 12390-10:2018
Edition 2019-08

Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 1: General requirements; German version EN 13205-1:2014
Edition 2014-09