State system for ensuring the uniformity of measurements. Optics and optical instruments. Field procedures for testing geodetic and surveying instruments. Part 2. Levels
General requirements for machines, instruments and other industrial products and calculation methods for their complex structures as to seismic stability
Occupational safety standards system. Respiratory protective devices. Compressed air line supply breathing apparatus. Part 1. Apparatus with a full face mask. Technical requirements. Test methods. Marking
Thermal insulation materials of polyurethane foam for building. Rigid polyurethane foam systems after applying. Rules and control of production of sprayed thermal insulation at the place of work
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