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Artificial lighting. Method for determining the maintenance factor lighting installations
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Drinking water. Methods for determining the total number of microorganisms, coliform bacteria, Escherichia coli, Pseudomonas aeruginosa and Enterococcus
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Cast iron brake pads for railway rolling stock. General specifications
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State system for ensuring the uniformity of measurements. State service of standard reference data. Basic statements
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Medical devices. Biological evaluation system. Basic concepts. Terms and definitions
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