Occupational safety standards system. Protective clothing providing protection from chemicals. Part 4. Method for determination of resistance to penetration by a spray of liquid (spray test)
State system for ensuring the uniformity of measurements. Requirements established for the quantity of prepackaged goods in packages of any kind during their manufacturing
State system for ensuring the uniformity of measurements. State special standard and state verification schedule for means measuring electric power and power factor over the frequency range 40-20000 Hz
