Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique (IEC 61094-2:2009); German version EN 61094-2:2009
Edition 2009-09

Plant biostimulants - Determination of mycorrhizal fungi; German and English version prEN 17722:2023
Edition 2023-06

Plant biostimulants - Detection of Listeria monocytogenes; German and English version prEN 17710:2023
Edition 2023-05

Connectors for rack and panel applications, rectangular, contacts with 1 and 1,6 mm diameter; ratings, requirements, tests
Edition 1985-04

Petroleum products and bituminous materials - Determination of water - Distillation method (ISO 3733:1999)
Edition 2003-02

Interface for serial measurement data communication - Part 3: Application services, messages (protocol data units) and protocols
Edition 1998-04

Electroacoustics - Random-incidence and diffuse-field calibration of sound level meters (IEC 61183:1994); German version EN 61183:1994
Edition 1994-12

IEC-821-VMEbus - Microprocessor system bus for 1 byte to 4 byte data (IEC 60821:1991, modified); German version EN 60821:1994
Edition 1994-09

Air filter intake systems for rotary machinery - Test methods - Part 3: Mechanical integrity of filter elements (ISO/DIS 29461-3:2023); German and English version prEN ISO 29461-3:2023
Edition 2023-12

Glass in building - Determination of thermal transmittance (U value) - Calculation method; German and English version prEN 673:2022
Edition 2023-01