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Reagents. Chromic (III) nitrate nonahydrate. Specifications

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Ground feldsparic and quartzfeldsparic materials. Rules of reception. Methods of sampling and sample preparation for testing

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Petroleum and natural gas industries. Shell-and-tube heat exchangers. Technical requirements

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Bitumens. Determination of softening point by ring and ball

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Petroleum products and lubricants. Neutralization number. Potentiometric titration method

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Chalk. Method for determination of water-soluble matters content

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