T/CCS 049-2023 Technical specification for green coal resource evaluation

GB 5751-1986 Classification of Chinese coals GB/T 5751-2009 Chinese classification of coals GB/T 12719-1991 Exploration specification of hydrogeology and engineering geology in mining areas GB/T 12719-2021 Exploration specification of hydrogeology and engineering geology in mining areas GB/T 13908-2002 General requirements for solid mineral exploration GB/T 13908-2020 General requirements for mineral exploration GB/T 15224.1-1994 Classification for quality of coal—Classification for ash yield of coal GB/T 15224.1-2004 Classification for quality of coal—Part 1:Ash GB/T 15224.1-2010 Classification for quality of coal—Part 1:Ash GB/T 15224.1-2018 Classification for quality of coal—Part 1:Ash GB/T 15224.2-1994 Classification for quality of coal—Classification for sulphur content of coal GB/T 15224.2-2004 Classification for coal quality—Part 2:Sulfur content GB/T 15224.2-2010 Classification for quality of coal—Part 2:Sulfur content GB/T 15224.2-2021 Classification for quality of coal—Part 2:Sulfur content GB/T 15224.3-1994 Classification for quality of coal—Classification for calorific value of coal GB/T 15224.3-2004 Classification for coal quality—Part 3:Calorific value GB/T 15224.3-2010 Classification for quality of coal—Part 3:Calorific value GB/T 15224.3-2022 Classification for quality of coal—Part 3:Calorific value GB/T 17766-1999 Classification for resources/reserves of solid fuels and mineral commodities GB/T 17766-2020 Classifications for mineral resources and mineral reserves GB/T 20475.1-2006 Classification for content of harmful elements in coal—Part 1:Phosphorus AQ 1024