Water quality. Evaluation of the 'ready', 'ultimate' aerobic biodegradability of organic compounds in an aqueous medium. Method by analysis of dissolved organic carbon (DOC)
Switches for household and similar fixed electrical installations. Part 2-5. Particular requirements. Switches and related accessories for use in home and building electronic systems
State system for ensuring the uniformity of measurements. State service of standard reference data on physical constants and properties of substances and materials. Standard reference data for atomic energy service. Basic principles
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