HB 5354-1994 Quality Control of Heat Treatment Processes

GB 253-1989 Kerosine GB 253-2008 Kerosine GB 338-1992 Methanol for industrial use GB 338-2004 Methanol for industrial use GB/T 338-2011 Methanol for industrial use GB/T 338-2025 Methanol for industrial use GB/T 3728-1991 Ethyl acetate for industrial use GB/T 3728-2007 Ethyl acetate for industrial use GB/T 3728-2023 Ethyl acetate for industrial use GB/T 394.1-1994 Ethanol for industrial use GB/T 394.1-2008 Ethanol for industrial use GB/T 394.1-2026 Non-edible fermented ethanol for industrial use GB/T 394.2-1994 General methods for determination of ethanol GB/T 394.2-2008 General methods of analysis for ethanol GB/T 394.2-2025 General methods of analysis for ethanol GB/T 536-1988 Liquefied anhydrous ammonia GB/T 536-2017 Liquefied anhydrous ammonia GB/T 6026-1998 Acetone for industrial use GB/T 6026-2013 Acetone for industrial use GB 6537-1994 No3 Jet fuel GB 6537-2006 No.3 Jet fuel GB 6537-2018 No.3 jet fuel GB 6537-2025 No.3 jet fuel GB/T 678-2002 Chemical reagent—Ethanol GB/T 678-2023 Chemical reagent—Ethanol GB/T 683-1993 Chemical reagent—Methanol GB/T 683-2006 Chemical reagent—Methanol GB/T 684-1999 Chemical reagent-Toluene GB/T 684-2023 Chemical reagent—Toluene GB/T 690-2008 Chemical reagent—Benzene GB/T 7445-1995 Pure hydrogen and high pruity hydrogen and ultra pure hydrogen GB 8178 HB 5023-1977 The method for measuring the depth of carburizing, carbon nitriding, and nitrocarburizing layers in steel HB 5408-1988 Industrial Potassium Nitrate for Heat Treatment HB 5408-2004 Specification for salts of heat treatment for aviation HB 5409-1988 Industrial Sodium Chloride for Heat Treatment HB 5410-1988 Industrial Potassium Chloride for Heat Treatment HB 5411-1988 Industrial Sodium Nitrate for Heat Treatment HB 5412-1988 Argon gas for heat treatment HB 5413-1988 Nitrogen for heat treatment HB 5414-1988 Industrial anhydrous barium chloride for heat treatment HB 5415-1988 The oil used for heat treatment quenching HB 5425-1989 The method for determining the effective heating zone of an aerospace component heat treatment furnace HB 5493-1991 The method for measuring the depth of carburizing and carbon-nitrogen diffusion coating for aviation steel parts HB 6735-1993 HB 7064.1-1994 Metal heat treatment salt bath chemical analysis method using pH meter to determine pH value HB 7064.2-1994 Metal heat treatment salt bath chemical analysis method for determining the content of carbonate using separation by barium carbonate precipitation and acid-base titration HB 7064.3-1994 Metal heat treatment salt bath chemical analysis method for determination of sulfuric acid content using barium sulfate precipitation-EDTA titration HB 7064.4-1994 Metal heat treatment salt bath chemical analysis method using BaSO4 turbidimetric method for determining the content of sulfate HB 7064.5-1994 Metal heat treatment salt bath chemical analysis method for determining chloride ion content using silver nitrate method HB 7064.6-1994 Metal heat treatment salt bath chemical analysis method acid-base titration for determination of total alkalinity TJ 16 TJ 36