General requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS). Part 4-1. General functional safety requirements for products intended to be integrated in HBES and BACS
Occupational safety standards system. Hearing protectors. Ear-muffs attached to an industrial safety helmet. General technical requirements. Methods of testing
Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (in ammonium and amide forms, using hypochlorite method)