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Surface-active agents. Method for determination of biodegradability rate in aquatic environment
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Petroleum and petroleum products. Determination nickel, vanadium and iron by methods atomic emission spectrometry with inductively coupled plasma
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Bauxite. Methods of sampling and sample preparation for chemical analysis and water content determination
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Petroleum and natural gas industries. Downhole equipment. Lock mandrels and landing nipples. General technical requirements
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Safety requirements for electrical equipment for measurement, control and laboratory use. Part 1. General requirements
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Non-metallic ore materials. Method for determination of silica mass fraction
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