Building material machines - Mixers for concrete and mortar - Part 2: Procedure for the examination of the mixing efficiency of concrete mixers
Edition 1995-11

Physics of radiation in the field of optics and illuminating engineering; efficiencies
Edition 1982-03

Optical radiation physics and illuminating engineering - Part 10: Photobiologically effective radiation, quantities, symbols and action spectra
Edition 2018-03

Optical radiation physics and illuminating engineering - Part 100: Melanopic effects of ocular light on human beings - Quantities, symbols and action spectra
Edition 2021-11

Food hygiene - Checking the effect of cleaning and disinfection on surfaces by means of rinsing procedures
Edition 2022-03

State of railway vehicles - Brake - Part 8: Tightness and efficiency
Edition 2024-08

State of railway vehicles - Brake - Part 11: Function and tightness of the brake for direct braking on powered traction unit and indirect braking on connected vehicles
Edition 2022-12

German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of total dry residue, filtrate dry residue and residue on ignition (H 1)
Edition 1987-01

German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of filterable matter and the residue on ignition (H 2)
Edition 1987-03

German standard methods for the examination of water, waste water and sludge; summary indices of actions and substances (group H); water hardness (H 6)
Edition 1986-01