Test method to measure the efficiency of air filtration media against spherical nanomaterials - Part 1: Size range from 20 nm to 500 nm (ISO 21083-1:2018); German version EN ISO 21083-1:2018
Edition 2019-09

Objective reference equivalent meter; construction and application
Edition 1990-09

High-frequency dielectric heating installations - Test methods for the determination of power output (IEC 61308:2005); German version EN 61308:2006
Edition 2006-09

Non-destructive testing - Acoustic emission testing - Equipment characterisation - Part 2: Verification of operating characteristics; German version EN 13477-2:2021
Edition 2021-12

Ferronickels - Determination of sulfur content - Infrared absorption method after induction furnace combustion (ISO 7526:2020); German version EN ISO 7526:2020
Edition 2020-06

Determination of total organic carbon in limestone; German version EN 13639:2017
Edition 2017-12

Anaesthetic and respiratory equipment - Heat and moisture exchangers (HMEs) for humidifying respired gases in humans - Part 2: HMEs for use with tracheostomized patients having minimum tidal volumes of 250 ml (ISO 9360-2:2001); German version EN ISO 9360-2:2009
Edition 2009-09

Measuring method for the level of intermodulation products generated in a gyromagnetic device (IEC 61843:1997); German version EN 61843:1997
Edition 1998-03

High-efficiency filters and filter media for removing particles in air - Part 4: Test method for determining leakage of filter elements-Scan method (ISO 29463-4:2011); German version EN ISO 29463-4:2018
Edition 2019-05

Pressure gauges
Edition 1992-04