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Occupational safety standards system. Respiratory protective devices. Filtering half masks against aerosols with additional protection against vapors and gases. General technical requirements. Test methods. Marking
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Moulding sands and sand mixtures. Method for determination of clayey component
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Animal and vegetable fats and oils. Determination of content of polar compounds
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Foods for special dietary uses, food biologically active additives. Method for determination of proanthocyanidins
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