National Standard: GB/T, GBT
              
GBT << ...>> GBT
Std ID Description (Standard Title)
GB/T 639-2008 Chemical reagent -- Sodium carbonate anhydrous
GB/T 6393.1-1986 Sodium hydrogen carbonate for industrial use--Determination of sodium carbonate--Titrimetric method
GB/T 6393.2-1986 Sodium hydrogen carbonate for industrial use--Determination of sodium hydrogen carbonate--Titrimetric method
GB/T 6393.3-1986 Sodium hydrogen carbonate for industrial use--Determination of moisture content--Gravimetric method
GB/T 6393.4-1986 Sodium hydrogen carbonate for industrial use--Determination of iron content--1, 10-phenanthroline photome-tric method
GB/T 6393.5-1986 Sodium hydrogen carbonate for industrial use--Determination of chloride content--Mercurimetric method
GB/T 6393.6-1986 Sodium hydrogen carbonate for industrial use--Determination of insoluble material in water--Turbidimetric method
GB/T 6394-1986 Metal-methods for estimating the average grain size
GB/T 10836-1989 Specification for marine incinerators
GB/T 6396-1995 Clad plates--Mechanical and technological test
GB/T 6396-2008 Clad steel plates -- Mechanical and technological test
GB/T 6397-1986 Metallic materials--Test pieces for tensile testing
GB/T 6398-1986 Standard test method for fatigue crack growth rates of metallic materials
GB/T 6398-2000 Standard test method for fatigue crack growth rates of metallic materials
GB/T 6400-1986 High temperature shear test method for metals wires and rivets
GB/T 6400-2007 Metallic materials -- Shear test method for wires and rivets
GB/T 6401-1986 Micrographic method for determining area fraction of the alpha-phases using charts in ferritic-austenitic stainless steels
GB/T 640-1984 Chemical reagent--Sodium hydrogen carbonate
GB/T 640-1997 Chemical reagent-Sodium hydrogen carbonate
GB/T 6402-1991 Steel forgings--Method for ultrasonic examination
GB/T 10836-2008 Ships and marine technology -- Shipboard incinerators -- Requirements
GB/T 6403.1-1986 Radii of sphere surfaces
GB/T 6403.1-2008 Radii of sphere surfaces
GB/T 6403.2-1986 Lubricating grooves
GB/T 6403.2-2008 Lubricating grooves
GB/T 6403.3-1986 Knurl
GB/T 6403.3-2008 Knurl
GB/T 6403.4-1986 Rounding and chamfered of parts
GB/T 6403.4-2008 Rounding and chamfer of parts
GB/T 6403.5-1986 Relief grooves for grinding wheels
GB/T 6403.5-2008 Relief grooves for grinding wheels
GB/T 6404.1-2005 Acceptance code for gear units -- Part 1: Test code for airborne sound
GB/T 6404.2-2005 Acceptance code for gear units -- Part 2: Determination of mechanical vibrations of gear units during acceptance testing
GB/T 6404-1986 Determination of sound power level for noise emitted by gear units
GB/T 6405-1994 Types of synthetic diamond and cubic boron nitride
GB/T 6406-1996 Super abrasive. Grain sizes of diamond or cubic boron nitride
GB/T 6406-2016 [Including 2019XG1] Super-abrasive -- Checking the grain size
GB/T 6408-1986 Technical requirements for cubic boron nitride
GB/T 6408-2003 Super abrasive -- Cubic boron nitride
GB/T 6409.1-1994 Superhard abrasive products and saws. General survey designation
GB/T 6409.2-1996 Abrasive products--Diamond or cubic boron nitride grinding tools--Form and dimensions
GB/T 6409.2-2009 Super-abrasives -- Diamond or cubic boron nitride grinding tools -- Shapes and dimensions
GB/T 6409.3-1986 Diamond or cubic boron nitride--Hand sticks
GB/T 6409.4-1986 Marking and packing for diamond or cubic boron nitride abrasive products
GB/T 6410-1986 Textiles--Tests for color fastness--Instrumental assessment of the degree of staining of adjacent fabrics
GB/T 6411-1986 A series of size of cotton knitted underwear
GB/T 6411-1997 A series of size of cotton knitted underwear
GB/T 6411-2008 A series of size of knitted underwear
GB/T 641-1994 Chemical reagent. Potassium peroxydisulfate
GB/T 641-2011 Chemical reagent -- Potassium peroxydisulfate
GB/T 6412-1986 Method for testing household coal and stoves
GB/T 6412-2009 Test method for household coal and stoves
GB/T 6413-1986 Calculation of scuffing load capacity for involute cylindrical gears
GB/T 6414-1986 Dimensional tolerances for castings
GB/T 10841-1989 Shapes for ships
GB/T 6416-1986 Technical factors influencing the quality of the fusion welded joints in steel
GB/T 10841-2008 Marine shapes
GB/T 6417.2-2005 Classification and explanation of imperfections in pressure welded joints
GB/T 6417-1986 Classification of imperfections in metallic fusion welds, with explanations
GB/T 6418-1993 Copper base brazing filler metals
GB/T 6418-2008 Copper base brazing filler metals
GB/T 6419-1986 Regulations for the qualification test of diver-welders
GB/T 6420-1986 Freight trailer series pedigree
GB/T 6420-2004 Freight trailer series pedigree
GB/T 6421-1986 Methods for drawing energy flow diagram of industrial enterprise
GB/T 642-1986 Chemical reagents--Potassium dichromate
GB/T 642-1999 Chemical reagent. Potassium dichromate
GB/T 6422-1986 Directives for measuring and testing energy consumption in industrial enterprises
GB/T 10844-1989 General specification of electro-hydraulic servo valves for ship
GB/T 6423-1986 The general requirements of systems cogenerating heat and power
GB/T 6423-1995 General requirements of heat and power cogenerating systems
GB/T 6424-1986 Specification for flat-plate solar collector products
GB/T 6424-1997 Specification for flat plate solar collectors
GB/T 6424-2007 Flat plate solar collectors
GB/T 6425-1986 Nomenclature for thermal analysis
GB/T 6425-2008 Nomenclature for thermal analysis
GB/T 6426-1986 Quasi-static test method for ferroelectric hysteresis loop in ferroelectric ceramics
GB/T 6426-1999 Quasi-static test method for ferroelectric hysteresis loop in ferroelectric ceramics
GB/T 6427-1986 Test methods for frequency temperature stability of piezoelectric ceramic vibrator
GB/T 6427-1999 Test method for frequency temperature stability of piezoelectric ceramic vibrator
GB/T 6428-1995 Methods of the measurement for hydrogen thyratron tubes
GB/T 6429-1986 The rule of type designation for quartz crystal units
GB/T 6430-1986 The rule of type designation for crystal holders (enclosures)
GB/T 6431-1986 Basic dimensions of narrow frame used for telecommunication equipment
GB/T 643-1988 Chemical reagent--Potassium permanganate
GB/T 643-2008 Chemical reagent -- Potassium permanganate
GB/T 6432-1994 Method for the determination of crude protein in feedstuffs
GB/T 6433-1994 Method for the determination of crude fat in feedstuffs
GB/T 6433-2006 Determination of crude fat in feeds
GB/T 6434-1994 Method for determination of crude fiber in feedstuffs
GB/T 6434-2006 Feeding stuffs -- Determination of crude fiber content -- Method with intermediate filtration
GB/T 6435-1986 Method for the determination of moisture in feedstuffs
GB/T 6435-2006 Determination of moisture and other volatile mater content in feeds
GB/T 10844-2007 General specification of electro-hydraulic servo valves for ship
GB/T 6436-1992 Method for the determination of calcium in feedstuffs
GB/T 6436-2002 Determination of calcium in feed
GB/T 6437-1992 Method for the determination of phosphorus in feedstuffs photometric method
GB/T 6437-2002 Determination of phosphorus in feed -- Spectrophotometry
GB/T 6438-1992 Method for the determination of crude ash in feedstuffs
GB/T 6438-2007 Animal feeding stuffs -- Determination of crude ash