Electrical apparatus for use in the presence of combustible dust. Part 1-1. Electrical apparatus protected by enclosures and surface temperature limitation. Specification for apparatus
Occupational safety standards system. Means for personal protection of hands. Protective gloves against chemicals and micro-organisms. Part 5. Terminology and performance requirements for protective gloves against micro-organisms
Automobile roads of general use. Asphalt mixtures and asphalt concrete for road pavement. Determination of the density of the layer by a nondestructive methods
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