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Quartz resonators. Methods of measuring temperature-frequency characteristics
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Canned fruits. Determination of synthetic colours erythrosine and phloxine B colour presence by thin-layer chromatography method
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Explosive atmospheres. Part 7. Equipment. Increased safety "e"
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Safety of transformers, reactors, power supply units and combinations thereof. Part 2-26. Particular requirements and tests for transformers and power supply units all for saving energy and other purposes
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