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Lamp controlgear. Part 2-8. Particular requirements for ballasts for fluorescent lamps
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Microbiology of food and animal feeding stuffs. Preparation of test samples, initial suspension and decimal dilutions for microbiological examination Part 5. Specific rules for the preparation of milk and milks products
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Unified system for design documentation. Rules for making working drawings of gear chain sprockets
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Wood fibre boards. Definition, classification and symbols
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