GOST 25645.130-86

Solar collector. General specifications

Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (distillation method using the chromium reduction of nitrate nitrogen and mineralization of organic nitrogen)

Petroleum products and lubricating oils. Neutralization number. Colour indicator titration method

System of standards in geological exploration of the entrails of the Earth. Report on geological study of the entrails of the Earth. General requirements for content and presentation

Electroacoustics. Audiometric equipment. Part 1. Equipment for pure-tone and speech audiometry

Moulding refractory clays. General specifications