MT/T 229-2025 General specifications of instrument for the determination of the crucible swelling number—electrical heating of bituminous coal

MT/T 229-2005 General specifications of instrument for the determination of the crucible swelling number of bituminous coal-electrical heating

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 483-1998 General rules for analytical and testing methods of coal GB/T 483-2007 General rules for analytical and testing methods of coal GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 5448-1997 Determination of the crucible swelling number of bituminous coal—Electrical heating GB/T 5448-2014 Determination of the crucible swelling number of bituminous coal—Electrical heating method GB/T 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB/T 15479-1995 Technical requirements and test methods of insulation resistance and insulating strength for use in industrial process measurement and control instruments GB/T 18153-2000 Safety of machinery—Temperatures of touchable surfaces—Ergonomics data to establish temperature limit values for hot surfaces GB/T 18153-2024 Safety of machinery—Safety data to establish temperature limit values for touchable hot surfaces