Quality requirements for fusion welding of metallic materials - Part 2: Comprehensive quality requirements (ISO/FDIS 3834-2:2020); German and English version prEN ISO 3834-2:2020— 22 стр.
Soil quality - Guidance on laboratory testing for biodegradation of organic chemicals in soil under aerobic conditions (ISO 11266:1994); German version EN ISO 11266:2020— 17 стр.