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Occupational safety standard system. Building. Building helmets. Specifications
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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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Alarms guarding surface vibration detectors for blocking of structures and safes. General technical requirements and test methods
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Medical electrical equipment. Part 2-51. Particular requirements for safety, including essential performance, of recording and analyzing single channel and multichannel electrocardiographs
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Occupational safety standards system. Industrial equipment. General safety requirements
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