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

MT 229-1990 The technical specification for the determination of coal crucible expansion sequence number

GB/T 15464-1995 General-purpose specification for the packaging of instrumentation products 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 GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods 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 2828.2-2008 Sampling procedures for inspection by attributes—Part 2:Sampling plans indexed by limiting quality(LQ)for isolated lot inspection GB/T 2828.3-2008 Sampling procedures for inspection by attributes—Part 3:Skip-lot sampling procedures GB/T 2828.4-2008 Sampling procedures for inspection by attributes—Part 4:Procedures for assessment of declared quality levels GB/T 2828.5-2011 Sampling procedures for inspection by attributes—Part 5:System of sequential sampling plans indexed by acceptance quality limit(AQL)for lot-by-lot inspection GB/T 2828.10-2010 Sampling procedures for inspection by attributes—Part 10:Introduction to the GB/T 2828 series of standards for sampling for inspection by attributes GB/T 2828.11-2008 Sampling procedures for inspection by attributes—Part 11:Procedures for assessment of declared quality levels for small population 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 191-2025 Graphical symbols marking for handling and storage of packages