GOST 28597-90

Mining. Methods for determining the risk of gassing of mine workings. General principles

Escalators and passenger conveyors. Rules and methods of examinations (tests) and measurements. Rules of sampling

Reciprocating internal combustion engines. Safety requirements for engines, intended for use in potentially explosive atmospheres. Part 2. Group I engines for use in underground workings susceptible to fired amp and/or combustible dust

Energy efficiency. Electrically driven submersible bladed pumps and electric motors for oil production. Determination of energy efficiency indicators

Hexagon throw-away (indexable) carbide shims with 80 degrees included angle. Design and dimensions

State system for ensuring the uniformity of measurements. Pressure gauges, vacuum pressure gauges, vacuum manometers, draught gauges, delivery head meters and draught head gauges with unified electric (current) output signals. Methods and means of verification