National Standard: GB/T, GBT
              
GBT << ...>> GBT
Std ID Description (Standard Title)
GB/T 39849-2021 Non-destructive testing instruments -- Ultrasonic time-of-flight diffraction instrument -- Methods of performance tests
GB/T 39850-2021 Core components business document assembly technical specification forinternational trade
GB/T 39851.2-2021 Road vehicles -- Diagnostic communication over Controller Area Network (DoCAN) -- Part 2: Transport protocol and network layer services
GB/T 39852-2021 Electronic product code -- Tag data translation
GB/T 39853.1-2021 Power quality measurement in power supply systems -- Part 1: Power quality instruments(PQI)
GB/T 39853.2-2021 Power quality measurement in power supply systems -- Part 2: Functional tests and uncertainty requirements
GB/T 39854-2021 Specification of performance evaluation for photovoltaic power station
GB/T 39855-2021 Definition, classification and nomenclature of nanotechnology products
GB/T 39856-2021 Hot rolled titanium and titanium alloy seamless tubes
GB/T 39857-2021 Specification of photovoltaic power generation efficiency
GB/T 39858-2021 Tunnel pre-cutting machine
GB/T 39859-2021 Gallium-based liquid metal
GB/T 39860-2021 Rapid identification of the surface residual mineral powder on latex products -- X-ray diffraction spectrometry
GB/T 39861-2021 Electrochemical performance test of lithium manganese oxide -- Test method for discharge plateau capacity ratio and cycle life
GB/T 39862-2021 Test method for thermal conductivity of high thermal conductivity ceramics
GB/T 39863-2021 Alumina ceramic substrate for copper clad laminate
GB/T 39864-2021 Electrochemical performance test of lithium manganese oxide -- Test method for the initial specific discharge capacity and the initial efficiency
GB/T 39865-2021 Method for measuring refractive index of uniaxial optical crystals
GB/T 39866-2021 Technical requirement of appendent frame for window and door in building
GB/T 39867-2021 Bismuth germanate scintillation crystal for positron emission tomography
GB/T 39868-2021 Ankle foot orthoses
GB/T 39869-2021 Brand evaluation -- Tourist destination
GB/T 39870-2021 Brand valuation -- Automobile manufacturing industry
GB/T 39871-2021 Cervicothoracic orthoses
GB/T 39872-2021 Data specification for disclosure of technical indicators in standard literature
GB/T 39873-2021 Determination of quaternary ammonium salt in disinfectant -- Liquid chromatography-tandem mass spectrometry
GB/T 39886-2021 Hyper-extension spinal orthoses
GB/T 39887-2021 Index systems for evaluating enterprise’s online reputation
GB/T 39888-2021 Earned value management in project and programme management
GB/T 39889-2021 Braille writing board
GB/T 39890-2021 Shoulder abduction orthoses with upright
GB/T 39891-2021 Electrical endurance testing for circuit-breakers above a rated voltage of 52 kV
GB/T 39892-2021 Specification of reporting and processing of motor vehicle product defect clue
GB/T 39893-2021 Handheld electro-optical low-vision device
GB/T 39894-2021 Evaluation items and requirements of interior decoration for ship
GB/T 39895-2021 Remanufactured automotive components -- Specifications of labels
GB/T 39896-2021 Series type spectrum for rigid truck with box body
GB/T 39897-2021 Determination of volatile organic compounds and aldehydes and ketones in nonmetallic parts of vehicles
GB/T 39898-2021 Technical specifications for the construction of intelligent traffic management system
GB/T 39899-2021 The technical specifications for remanufactured automotive components -- Automatic transmission
GB/T 39900-2021 General technical requirements for the road traffic signal control system
GB/T 39901-2021 Performance requirements and test methods for advanced emergency braking system (AEBS) of passenger cars
GB/T 39902-2021 Technical specification for the levitation control system of medium-low speed maglev vehicle of the urban rail transit
GB/T 39903-2021 Work breakdown structures for project and programme management
GB/T 39904-2021 Guidance for regional brand cultivation and construction
GB/T 39905-2021 Regional brand valuation -- Industrial clusters
GB/T 39906-2021 Requirements on brand management
GB/T 39908-2021 Science and technology program-generated scientific data archiving -- General code set
GB/T 39909-2021 Science and technology program-generated scientific data archiving -- General data element
GB/T 39910-2021 Specification for classification of standard literature
GB/T 39911-2021 Brand valuation -- Telecommunications industry
GB/T 39912-2021 Science and technology program-generated scientific data archiving -- Technical and management specification
GB/T 39913-2021 General science and technology infrastructure -- User metadata
GB/T 39922-2021 Inoculated log production regulations for the cultivation of white jelly fungus
GB/T 39923-2021 Truffle
GB/T 39924-2021 Technical requirements of water saving evaluation for rotating sprinklers
GB/T 39925-2021 Stationary equipment for agriculture -- Data communications network for livestock farming
GB/T 39926-2021 Hydraulic fluid power -- Filter element test methods -- Thermal conditioning and cold start-up simulation
GB/T 39927-2021 Determination of prohibited substances veratrine in cosmetics -- High performance liquid chromatography
GB/T 39928-2021 LED filament lamp -- Performance requirements
GB/T 39929-2021 Footwear manufacturing machines -- Shoe and leather presses -- Safety requirements
GB/T 39930-2021 Organic light emitting diode (OLED) panels for general lighting -- Performance requirements
GB/T 39931-2021 Volatile organic compounds from wooden furniture -- On-site and rapid detection method
GB/T 39932-2021 Footwear manufacturing machines -- Cutting and punching machines -- Safety requirements
GB/T 39933-2021 Rotational moulding -- Test method for low temperature impact
GB/T 39934-2021 Determination of volatile organic compounds from furniture products -- Gas chromatography-mass spectrometry
GB/T 39935-2021 Plastics -- Film and sheeting -- Determination of blocking resistance
GB/T 39936-2021 Cellular plastics for use in cryogenic thermal insulation
GB/T 39937-2021 Plastics -- Extruded sheets of polypropylene (PP) -- Requirements and test methods
GB/T 39938-2021 Electric room heating -- Underfloor heating -- Performance characteristics -- Definitions, method of testing, sizing and formula symbols
GB/T 39939-2021 Volatile organic compounds in furniture components -- Test method for the rapid determination in the field
GB/T 39940-2021 Footwear manufacturing machines -- Modular shoe repair equipment -- Safety requirements
GB/T 39941-2021 Monitor and evaluation methods for quality safety in wooden furniture production process
GB/T 39943-2021 Performance requirements for LED lighting chains
GB/T 39944-2021 Digital cone yarn dyeing complete equipment -- General technical specification
GB/T 39945-2021 Method of heat penetration test for canned food
GB/T 39946-2021 Determination of prohibited Para Red in lip cosmetics -- High performance liquid chromatography
GB/T 39947-2021 Selection and design for food packaging
GB/T 39948-2021 Method of heat distribution test for food thermal sterilization equipments
GB/T 39949.1-2021 Hydraulic fluid power -- Mounting dimensions for accessories of single rod cylinder -- Part 1: 16 MPa medium and 25 MPa series
GB/T 39949.2-2021 Hydraulic fluid power -- Mounting dimensions for accessories of single rod cylinder -- Part 2: 16 MPa compact series with bores from 25 mm to 220 mm
GB/T 39949.3-2021 Hydraulic fluid power -- Mounting dimensions for accessories of single rod cylinder -- Part 3: 16 MPa compact series with bores from 250 mm to 500 mm
GB/T 39951-2021 Evaluation method for degradability of disposable paper products
GB/T 39953-2021 5-axis simultaneous machining center -- Testing of the accuracy for RTCP
GB/T 39954-2021 Tool storage with automatic tool changer -- Specification of performance test
GB/T 39955-2021 Additive manufacturing -- Materials -- Powders of Nylon 12 and its composites for powder bed fusion
GB/T 39956.1-2021 (Pneumatic Electric-Pneumatic Pressure Control Valve -- Part 1: Main Features to be Included in Commercial Documents)
GB/T 39956.2-2021 (Pneumatic electro-pneumatic pressure control valve -- Part 2: Test method for evaluating the main characteristics that should be included in commercial documents)
GB/T 39957-2021 High pressure metal die casting units -- Technical requirements
GB/T 39958-2021 CNC hole puncher
GB/T 39959-2021 Liquid pumps and pump units -- Noise test code -- Grades 2 and 3 of accuracy
GB/T 39960-2021 Straight-sided single-action mechanical power presses -- Characteristicsand dimensions
GB/T 39961-2021 Ball screw assembly -- Dimension of shaft-end type screw
GB/T 39962-2021 Die casting machine -- Energy efficiency limits and energy efficiency rating
GB/T 39963-2021 Technical specification on C80~C100 concrete shaft lining applied in vertical freezing shaft
GB/T 39964-2021 Implementation guidance for energy management systemsin paper industry
GB/T 39965-2021 General methods for energy savings pre -assessment
GB/T 39966-2021 Guidelines for environmental performance evaluation in waste resource multiple utilization enterprises
GB/T 39967-2021 5-axis simultaneous machining center -- Accuracy of S-shaped test piece
GB/T 39972-2021 Technical specification of‘Inteplan’information system for implementation and supervision of spatial planning