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Occupational safety standards system. Respiratory system protective devices. Self-contained closed-circuit breathing apparatus for escape with chemically bonded or compressed oxygen. Technical requirements. Testing methods. Marking. Sampling rules
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Wood. Method for determination of wear-proofness index
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State system for ensuring the uniformity of measurements. Reference light-emitting diodes (LED) of noncoherent radiation. Technical requirements
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Cadmium high purity. Method of spectrographic determination of iron, copper, nickel, tin, lead
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Chamfered hexagon thin nuts (style 0) with fine pitch thread. Product grades A and B
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