GOST 7724-77

Occupational safety standards system. Insulating suits. Method of definition of protection coefficient for gaseous substances

State system for ensuring the uniformity of measurements. Optical power meters, optical radiation sources, return loss meters and optical testers for fiber-optical transfer systems. Verification method

Automobile roads of general use. Requirements for winter maintenance level. Evaluation criteria and control methods

Acoustics. Field measurements of airborne and impact sound insulation and of service equipment sound. Survey method

Petroleum and natural gas industries. Subsea production systems. In-line inspection. Qualification of personnel

Civil defence. Engineering and technical equipment of civil defence constructions. Protective-hermetic and hermetic doors, gates and shutters for shelters. General technical requirements and control methods