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Combustible natural gases. Calculation method for determination of calorific value, specific gravity and Wobbe index

Document status: Withdrawn

Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen by instrumental methods

Document status: Cancelled

Petroleum products and bituminous materials. Determination of water by distillation method

Document status: Active

Iron ores and concentrates. Method for the determination of mineralogical type

Document status: Active

Zinc concentrates. Method for the determination of aluminium oxide

Document status: Active

Petroleum and natural gas industries. Rotary drilling equipment. Part 2. Inspection and classification of used drill stem elements. General technical requirements and control methods

Document status: Active