GOST 9231-80

Equipment for zone refining of refractory metal without crucible. General requirements

Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of presumptive Bacillus cereus. Colony-count technique at 30 °C

Microbiology of food and animal feeding stuffs. Guidelines on preparation and production of culture media. Part 1. General guidelines on quality assurance for the preparation of culture media in the laboratory

Leather. Tests for colour fastness. Colour fastness to perspiration

Closure products. General on security, marking and acceptance rules

Staple chemical fibres for reinforcement of building materials and structures. General specifications