GOST 24147-80

Occupational safety standards system. Respiratory protective devices. Methods of test and test equipment. Part 4. Determination of gas capacity, internal migration/desorption of gas and combined filters using constant air flow and breakthrough time of filters against carbon monoxide using sinusoidal air flow

State system for ensuring the uniformity of measurements. Vertical optical length comparators. Methods an means of verification

Test documents MPS, RPS, CHRT, SP for facsimile apparatus. Specifications

Oblong holders for ball-mounting of punches. Construction and dimensions

Industrial communication networks. Network and system security. Part 3-3. System security requirements and security levels

Refuse collection vehicles and their associated lifting devices. General requirements and safety requirements. Part 4. Noise test code for refuse collection vehicles