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Manganese ores, concentrates and agglomerates. Methods for determination of sulphur
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Solid biofuels. Determination of total sulphur and chlorine content
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Thread connections for casing, tubing, line pipe and thread gauges for them. General technical requirements
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Non-metallic ore materials. Method for determination of silica mass fraction
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Synthetic fat acids. Determination of unsaponificables content. Refractometric method
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