Acoustics - Determination of sound power levels of noise sources - Guidelines for the use of basic standards (ISO 3740:2019); German version EN ISO 3740:2019— 51 стр.
Standardization - Part 2: Presentation of documents (ISO/IEC Directives - Part 2:2016, modified); German and English version CEN/CENELEC Internal Regulations - Part 3:2017— 231 стр.