GOST 21570-76

Nature protection. Soils. General requirements for sampling

Medical electrical equipment. Photocatalytic air purifiers. Technical condition control methods

Explosive atmospheres. Part 6. Equipment protection by liquid immersion 'o'

State system for ensuring the uniformity of measurements. Symbols for units of physical quantities to be used imprinting devices with a limited set of signs

Earth-moving machinery. Machine-mounted retrieval device. Performance requirements

Barrier-free living environment for disabled people. Terms and definitions