NB/T 11434.4-2024 Paste filling in coal mine—Part 4:Technical requirements for aggregates

GB/T 1596-2017 Fly ash used for cement and concrete GB 6566-2001 Limit of radionuclides in building materials GB 6566-2010 Limits of radionuclides in building materials GB 12573-1990 Sampling method of cement GB/T 12573-2008 Sampling method for cement GB/T 14684-2022 Sand for construction GB/T 14685-2022 Pebble and crushed stone for construction GB 18599 GB/T 39198-2020 Classification and code for general solid waste GB/T 39834-2021 Technical requirement of fully mechanized bag filling mining with paste GB/T 40416-2021 Technical requirements of gravel aggregate production complete equipment HJ 557-2010 HJ 557-2010 Solid waste leaching toxicity leaching method Horizontal shaking method MT/T 137.1-1986 The method for determining harmful gas carbon monoxide in mine air MT 277-1994 The method for determining harmful gas hydrogen sulfide in mine air (detection tube method) is: Using detection tube to detect hydrogen sulfide in the mine air MT 278-1994 Determination Method of Ammonia in Mine Air (Detection Tube Method) MT 279-1994 The method for determining harmful gas nitrogen oxides in mine air (detection tube method) is: (1) use a detection tube containing a chemical reagent that reacts with nitrogen oxides to produce a colorimetric change, and (2) measure the colorimetric change using a colorimeter MT 280-1994 The method for determining harmful gas sulfur dioxide in mine air (detection tube method) is given below