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Drinking water. Methods for determination of polyacrylamide

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Nature protection. Soils. General requirements for methods of determining contaminants

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Men`s clothes for low-temperature protection. Specifications

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Access control systems and units. Classification. The general technical requirements. Test methods

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Occupational safety standards system. Personal protective means for respiratory system. Method for determination of breathing resistance

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Soil quality. Biological methods. Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

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