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Reagents. Flame-photometric method for determination of impurities sodium, potassium, calcium and strontium
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Dies for sheet-metal stamping. General technical conditions
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Safety of household and similar electrical appliances. Part 2-61. Particular requirements for thermal-storage room heaters
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Basic environmental testing procedures. Part 2. Tests. Test T: Soldering
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Unified system for design documentation. Rules for making design documentation of products, manufactured with the use of electric mounting
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