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Hydrogen detection apparatus. Stationary applications
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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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Petroleum and natural gas industries. Downhole equipment. Subsurface safety valve equipment. General technical requirements
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Concentrated kaolin. Method for determination of manganese oxide (II)
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Hydrochloric acid for industrial use. Determination of iron content 2,2`-bipyridyl spectrophotometric method
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