GOST 4.397-89

Aviation engines and engine components. Industrial cleanliness of critical parts and assemblies of engine hydraulic, lubrication and fuel supply systems. Terms and definitions

Textile materials for filtration of industrial aerosols. Method of determination of the dust mass concentration behind filter

State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring volumetric flow of water within the range of 2,8x10 in minus 8 degree up to 2,8x10 in minus 2 degree m3/sec

Testing of chemicals of environmental hazard. Predatory mite (Hypoaspis (Geolaelaps) aculeifer) reproduction test in soil

Fixing devices of units for changeable sheet stamping cutting dies. Construction and dimensions

Occupational safety standards system. Textile fabrics for protective clothing. Measurement of flame spread properties of vertically oriented specimens