GOST R 51237-98

State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 5. Equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz

Electrical apparatus for explosive gas atmospheres. Part 3. Spark-test apparatus for intrinsically-safe circuits

Plywood panels. Specifications

Soils. Determination of the characteristics of the strength of frozen soils by shearing on the freezing surface

Gas pumping units driven with gas turbine. General specifications

Carbonaceous materials for the production of aluminium. Cathode block materials. Part 2. Determination of the expansion due to sodium penetration without application of pressure