Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 31089-2014 Computation and requirement of recovery ratio of coal mine 150.0 via email in 1~3 business day valid
GB/T 31356-2014 Quality evaluation and control guide for commercial coal 165.0 via email in 1~3 business day valid
GB/T 15224.2-1994 Classification for quality of coal--Classification for sulphur content of coal 180.0 via email in business day abolished
MT 38-1987 General Requirements for Sampling of Coal and Rock for Physical and Mechanical Property Determination 60.0 via email in 1~3 business day valid
MT/T 849-2000 Classification for volatile matter of coal 60.0 via email in 1~3 business day valid
MT/T 967-2005 Classification for germanium in coal 30.0 via email in 1~3 business day valid
MT 39-1987 Determination Methods for Rock Actual Density 90.0 via email in 1~3 business day valid
MT/T 803-1999 Classification for arsenic in coal 60.0 via email in 1~3 business day valid
GB/T 20475.4-2012 Classification for content of harmful elements in coal—Part 4:Mercury 80.0 via email in 1~3 business day valid
MT 47-1987 Determination Methods for Single Side Tensile Strength of Coal and Rock 60.0 via email in 1~3 business day valid
GB/T 19559-2004 Method of determining coalbed methane content 210.0 via email in 1~3 business day abolished
MT 46-1987 Determination Methods for Triaxial Strength and Deformation of Coal and Rock 120.0 via email in 1~3 business day valid
GB 34170-2017 Commercial coal quality--Civil briquette 120.0 via email in 1~3 business day valid
GB 3715-1991 255.0 via email in 1~3 business day abolished
GB/T 23810-2009 Specification of coal for direct liquefaction 120.0 via email in 1~3 business day valid
GB/T 31428-2015 Terms relating to coal chemical technology 240.0 via email in 1~3 business day valid
MT 223-1990 Coal and rock permeability measurement 90.0 via email in 1~3 business day valid
GB/T 15591-2013 Judging method for Mixed coal type of commercial coal 110.0 via email in 1~3 business day valid
MT 48-1987 Test Methods for Shear Resistance of Coal and Rock 120.0 via email in 1~3 business day valid
GB/T 35053-2018 Sealed coring method for determination of coalbed methane content via email in business day
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