Peat and products of its processing for agriculture. Methods for determination of ammonia nitrogen
Document status: Active
Reagents. Cobaltous carbonate basic aqueous. Specifications
Document status: Active
Vessels and apparatus. Norms and methods of strength calculation. Reinforcement of openings in shells and heads under internal and external pressure. Strength calculation of shells and heads under external static loads on the nozzle
Document status: Replaced by GOST 34233.3-2017
Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen by instrumental methods
Document status: Cancelled
