State system for ensuring the uniformity of measurements. Measurements of liquids and gases flow rate and quantity by means of orifice instruments. Verification of measurement procedure
Document status: Active
Quality system. Model for quality assurance in final inspection and test
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Low-voltage switchgear and controlgear assemblies. Part 2. Power switchgear and controlgear assemblies
Document status: Active
Filament electric lamps for light measuring. Specifications
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