Chemical products. Designation for degree of purity
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Fertilizers. Terms and definitions
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Phosphate concentrates. Range of quality indicators.
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Technical sulphur. Terms and type definitions.
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Calcium carbide. Range of quality indicators.
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Optical colourless glass. Terms and definitions.
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Quality indicator system. Materials and chemical reagents for preparation and processing of muds and slurries, well completion and development. Product indicators.
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Groundwater. Classification by its chemical composition and temperature.
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Quality indicator system. Catalytic agents and carriers for catalytic agents. Product indicators.
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Quality indicator system. Active coals. Product indicators.
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Material secondary resources for chemical industry. Terms and definitions.
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Burning and fire hazard substances. Terminology.
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