Requirements for the assessment, maintenance and improvement of competences of learning facilitators - Requirements for persons
Edition 2021-10

Electroacoustics - Audiometric equipment - Part 5: Instruments for the measurement of aural acoustic impedance/admittance (IEC 60645-5:2004); German version EN 60645-5:2005
Edition 2005-08

Measurement and assessment of low-frequency noise immissions
Edition 2020-06

Vibration measuring instrumentation - Fundamental requirements and verification
Edition 1996-12

Thickness measurement of coatings and characterization of surfaces with surface waves - Part 2: Guide to the thickness measurement of coatings by photothermic method; German version EN 15042-2:2006
Edition 2006-06

Communication systems for meters - Part 2: Wired M-Bus communication; German version EN 13757-2:2018+A1:2023
Edition 2024-12

Calculation of loudness level and loudness from the sound spectrum - Zwicker method - Amendment 1: Calculation of the loudness of time-variant sound; with CD-ROM
Edition 2010-03

Acoustics - Audiometric test methods - Part 3: Speech audiometry (ISO 8253-3:2022); German version EN ISO 8253-3:2022
Edition 2022-11

Rheometry and Viscometry - Pharmaceutical, cosmetic and medical products/devices - Testing the rheological properties - Part 1: Determination of the viscoelastic behavior of semisolid preparations using an oscillatory rheometer by amplitude sweep
Edition 2024-01