National Standard: GB/T, GBT
              
GBT << ...>> GBT
Std ID Description (Standard Title)
GB/T 740-2003 Pulps -- Sampling for testing
GB/T 7402-1987 Time and frequency dissemination via television signals
GB/T 7403.1-1996 Lead-acid traction batteries
GB/T 7403.1-2008 Lead-acid traction batteries -- Part 1: Technical conditions
GB/T 7403.2-1987 Lead-acid traction batteries--Product types and specifications
GB/T 7403.2-2008 Lead-acid traction batteries -- Part 2: Product types and specifications
GB/T 7404.1-2000 Diesel Locomotive exhaust lead-acid batteries
GB/T 7404.1-2013 Lead-acid battery for locomotives and rolling stock -- Part 1: Valve-regulate lead acid for electric and subway locomotives
GB/T 7404.2-2000 Diesel Locomotive VRLA batteries
GB/T 7404.2-2013 Lead-acid battery for locomotives and rolling stock -- Part 2: Valve regulated lead-acid for diesel locomotives
GB/T 7404-1987 Lead-acid batteries for diesel locomotives
GB/T 7405-1987 Test methods for submerged--Arc furnaces
GB/T 7406-1987 Test methods for electroheating installations with election guns
GB/T 7407-1987 Codes for China and world main shipping trade ports
GB/T 7407-1997 Codes for China and world main shipping trade ports
GB/T 7407-2008 China and the world major shipping trade ports
GB/T 7407-2015 Codes for China and world main shipping trade ports [including MODIFICATIONS 1 & 2]
GB/T 7408-1994 Data elements and interchange formats--Information interchange--Representation of dates and times
GB/T 7408-2005 Data elements and interchange formats -- Information interchange -- Representation of dates and times
GB/T 7409.1-1997 Excitation system for synchronous electrical machines--Definitions
GB/T 7409.1-2008 Excitation systems for synchronous electrical machines -- Definitions
GB/T 7409.2-1997 Excitation system for synchronous electrical machines--Model for power system studies
GB/T 7409.2-2008 Excitation systems for synchronous machines -- Models for power system studies
GB/T 7409.3-1997 Excitation system for synchronous electrical machines--Technical requirements of excitation system for large and medium synchronous generators
GB/T 7409.3-2007 Excitation system for synchronous electrical machines -- Technical requirements of excitation system for large and medium synchronous generators
GB/T 7410-1987 Terms of vitreous and porcelain enamels
GB/T 741-1989 Pulps--Determination of moisture content
GB/T 741-2003 Pulps -- Determination of moisture content
GB/T 7414-1987 Seed packing of main agricultural crops
GB/T 7415-1987 Seed storage of main agricultural crops
GB/T 7415-2008 Seed storage of agricultural crops
GB/T 7416-1987 Malting barley
GB/T 7416-2000 Malting barley
GB/T 7416-2008 Malting barley
GB/T 7417-1987 AX series relays
GB/T 7417-2001 AX Series Relay
GB/T 7417-2010 AX series relays for railway signaling
GB/T 7419-1987 Information processing. Implementation of the 7-bit coded character set and its 7-bit and 8-bit extensions on 3.81mm magnetic tape cassette for data interchange
GB/T 74-1985 Slotted set screws with cup point
GB/T 7420-1987 Information processing--Guide for the definition of 4-bit character sets derived from the 7-bit coded character set for information processing interchange
GB/T 7421-1987 Information processing systems--Data communication--High level data link control procedures--Consolidation of classes of procedures
GB/T 7421-2008 Information technology -- Telecommunications and information exchange between systems -- High-level data link control (HDLC) procedures
GB/T 742-1989 Pulps--Determination of ash
GB/T 7422.1-1987 16×12, 16×8, 16×4 Dot matrix font set and data set of Mongolian characters for information interchange
GB/T 7422.2-1987 16×12, 16×8, 16×4 Dot matrix data set of Mongolian characters for information interchange
GB/T 742-2003 Paper, board and pulp -- Determination of residue (ash) on ignition at 900 Celsius
GB/T 742-2008 Fibrous raw material, Pulp, Paper and board -- Determination of ash
GB/T 7423.1-1987 Heat sink of semiconductor devices. Generic specification
GB/T 7423.2-1987 Heat sink of semiconductor devices. Heat sink, Extruded shapes
GB/T 7423.3-1987 Heat sink of semiconductor devices. Heat sink, staggered fingers shapes
GB/T 7424.1-1998 Optical fibre cables. Part 1: Generic specification
GB/T 7424.1-2003 Generic specification for optical fibre cables -- Part 1: General
GB/T 7424.2-2002 The cable general specification -- Part 2: Basic optical test methods
GB/T 7424.2-2008 Optical fibre cable generic specification -- Part 2: Basic optical cable test procedures
GB/T 7424.3-2003 Optical fibre cables -- Part 3: Section specification -- Outdoor cables
GB/T 7424.4-2003 Optical fibre cables -- Part 4: Section specification -- Optical fibre composite overhead ground wire
GB/T 7424.5-2012 Optical fibre cables -- Part 5: Sectional specification -- Micro duct optical fibre cables and fibre units for installation by blowing
GB/T 7424-1987 General requirements for optical fibre cables for telecommunication
GB/T 7425.10-1987 Test methods for the mechanical properties of optical fibre cables--Winding
GB/T 7425.1-1987 Test methods for the mechanical properties of optical fibre cables--General
GB/T 7425.2-1987 Test methods for the mechanical properties of optical fibre cables--Tensile
GB/T 7425.3-1987 Test methods for the mechanical properties of optical fibre cables--Crush
GB/T 7425.4-1987 Test methods for the mechanical properties of optical fibre cables--Impact
GB/T 7425.5-1987 Test methods for the mechanical properties of optical fibre cables--Repeated bend
GB/T 7425.6-1987 Test methods for the mechanical properties of optical fibre cables--Torsion
GB/T 7425.7-1987 Test methods for the mechanical properties of optical fibre cables--Flexing
GB/T 7425.8-1987 Test methods for the mechanical properties of optical fibre cables--Snatch
GB/T 7425.9-1987 Test methods for the mechanical properties of optical fibre cables--Kink
GB/T 7426-1987 Recorded characteristic for magnetic sound records on 16mm motion-picture film containing no picture
GB/T 7428-1994 Head gaps for two sound records on 16mm magnetic film--Positions and width dimensions
GB/T 7430-1996 Photography--Photographic films--Specifications for safety film
GB/T 7430-2012 Imaging materials -- Photographic films -- Specifications for safety film
GB/T 7431-1987 Transmission objectives and their testing methods for crossbar local automatic telephone exchange
GB/T 743-1989 Pulps--Determination of ether solubles
GB/T 743-2003 Pulps -- Determination of ether soluble
GB/T 7432-1987 Immunity specification of coaxial cable carrier system to the interference from the radio broadcasting and telecommunication
GB/T 7433-1987 Immunity specification of symmetrical cable carrier system to the interference from the radio broadcasting and telecommunication
GB/T 7434-1987 Immunity specification of open wire carrier system to the interference from the radio broadcasting and telecommunication
GB/T 7436-1987 Specifications of TDM equipment operating on analog telephone-type circuit for telegraph and lower-speed data
GB/T 7437-1987 The transmission performance objectives for public analogue toll telephone automatic switching network
GB/T 7438-1987 Numbering for telex and low speed data in national communication network
GB/T 7440-1987 Calculating methods and measuring methods for transmission parameters of open-wire communication lines
GB/T 7441-1987 Noise measurement method for the power plant turbine generator
GB/T 7441-2008 Measurement of airborne noise emitted by steam turbines and driven machinery
GB/T 744-1989 Pulps--Determination of alpha-cellulose
GB/T 744-2004 Pulps -- Determination of alkali resistance
GB/T 7442-1996 Angle electric grinders
GB/T 7442-2001 Angle grinder
GB/T 7442-2007 Angle grinders
GB/T 7443-1996 Electric rotary hammers
GB/T 7443-2001 Electric Hammer
GB/T 7443-2007 Hammers
GB/T 7445-1995 Pure hydrogen, high pruity hydrogen and ultra pure hydrogen
GB/T 7449-1987 Guide to the lightning impulse and switching impulse testing of power transformers and reactors
GB/T 7450-1987 Guidance for lightning protection for electronic equipments
GB/T 7451-1987 Electric light source vocabulary
GB/T 745-1989 Pulps--Determination of pentosan content
GB/T 7452.1-1996 Guidelines for the overall evaluation of vibration in merchant ships
GB/T 7452.2-1996 Guidelines for the overall evaluation of vibration in merchant ships under 100m
GB/T 745-2003 Pulps -- Determination of pentosan content