GOST 12351-81

Ores and concentrates of non-ferrous metals. General requirements for methods of chemical analysis

Emissions of polluting substances into the atmosphere. Method for calculating the amount of pollutant emissions generated by motor vehicle flows on roads of various categories

Carbamide. Method of biuret content determination

State system for ensuring the uniformity of measurements. The state special standard and all-union verification schedule for means of measurements of the difference of pressures up to 4x10 in 4 degree Pa

Bauxite. Method for the determination of aluminium oxide

Safety in emergencies. Technical tools of natural and technological emergencies monitoring. Test methods