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Longwall powered roof chocks. Basic parameters. General technical requirements. Test methods
Document status: Active
Bauxite. Methods for the determination of titanium dioxide
Document status: Replaced by GOST 14657.5-96
Guidelines for diagnosis of fly ash produced in the coal combustion
Document status: Active
Testing of chemicals of environmental hazard. Activated sludge, respiration inhibition test (Carbon and Ammonium Oxidation)
Document status: Active
Surface active agents. Technical alkane sulfonates. Determination of alkane monosulfonates content by direct two-phase titration
Document status: Active