National Standard: GB/T, GBT
              
GBT << ...>> GBT
Std ID Description (Standard Title)
GB/T 40296-2021 Practical superconducting wires -- Twist pitch measurement method of Nb-Ti and Nb3Sn composite superconductors
GB/T 40297-2021 Seamless austenitic stainless steel pipes for high pressure hydrogenation unit
GB/T 40298-2021 Technical specification for disposal and recycling of slag from hot dip galvanizing of steel
GB/T 40299-2021 Corrosion of metals and alloys -- Conventions applicable to electrochemical measurements in corrosion testing
GB/T 40300-2021 Microbeam analysis -- Analytical electron microscopy -- Vocabulary
GB/T 40301-2021 Vanadium trioxide
GB/T 40302-2021 Plastics -- Determination of burning behaviour of thin flexible vertical specimens in contact with a small-flame ignition source
GB/T 40303-2021 General specification for GH4169 alloy bars
GB/T 40304-2021 Determination of content of nonmetallic inclusions in steel -- Billet full section method
GB/T 40305-2021 Field device integration -- EDD and OPC UA integration technology specification
GB/T 40308-2021 Model and nomenclature for meteorological instruments
GB/T 40309-2021 Electrical self-balancing vehicle -- Electromagnetic compatibility -- Emission and immunity requirements
GB/T 40311-2021 Vanadium slag -- Determination of multi-element contents -- Wavelength dispersive X-ray fluorescence spectrometry(fused cast bead method)
GB/T 40312-2021 Ferrophosphorus -- Determination of phosphorus, silicon, manganese and titanium content -- Wavelength dispersive X-ray fluorescence spectrometry method(Fused cast bead method)
GB/T 40313-2021 Specification for wrought superalloy forging disks
GB/T 40314-2021 Corrosion of metals and alloys -- Crevice corrosion formers with disc springs for flat specimens or tubes made from stainless steel
GB/T 40315-2021 Plastics -- Small enclosures for conditioning and testing using aqueous solutions to maintain the humidity at a constant value
GB/T 40316-2021 Welded high strength shaped and round steel tubes for automobile structure
GB/T 40317-2021 Seamless stainless steel pipes for oxygen pipeline
GB/T 40318-2021 Plastics -- Environmental aspects -- General guidelines for their inclusion in standards
GB/T 40319-2021 Wrought aluminum alloy sheets, strips and foils for drawn cans
GB/T 40320-2021 Measuring method for mechanical melting temperature of aluminum alloy
GB/T 40321-2021 High strength and toughness Al-Zn-Mg-Cu series aluminium alloy plate
GB/T 40322-2021 Thermoplastic elastomer -- Specifications of door sealmaterials for household and similar refrigerating appliances
GB/T 40323-2021 Determination of octamethylcyclotetrasiloxane(D4), decamethylcyclopentasiloxane(D5) and dodecamethylcyclohexasiloxane(D6) in textile dyeing and finishing auxiliaries
GB/T 40325-2021 Performance test for rubber sealing device of railway vehicle wheel rolling bearing
GB/T 40326-2021 Energy efficiency grades for laboratory equipment -- Drug stability test chambers
GB/T 40327-2021 Test methods of guided motion performance for wheeled mobile robot
GB/T 40328-2021 Electrical equipment and system of industrial machines -- Programing language of processing procedures for NC system
GB/T 40329-2021 Electrical equipment and system of industrial machines -- PLC programme in numerical control system
GB/T 40338-2021 Corrosion of metals and alloys -- Exfoliation corrosion testing of aluminium alloys
GB/T 40339-2021 Corrosion of metals and alloys -- Guidelines for assessing the significances of stress corrosion cracks detected in service
GB/T 40340-2021 Composites and metal assemblies -- Galvanic corrosion tests of carbon fibre reinforced plastics (CFRPs) related bonded or fastened structures in artificial atmospheres -- Salt spray tests
GB/T 40341-2021 High strength and toughness alloy structure steel bars for deep sea oil field drilling and exploiting
GB/T 40342-2021 Method for determination of aluminum content in hot dipped zinc-aluminum alloy coating on steel wire
GB/T 40343-2021 Intelligent laboratory -- Information management system -- Functional requirements
GB/T 40344.1-2021 Vacuum technology -- Standard methods for measuring vacuum-pump performance -- Part 1: General description
GB/T 40344.2-2021 Vacuum technology -- Standard methods for measuring vacuum-pump performance -- Part 2: Positive displacement vacuum pumps
GB/T 40345-2021 Crop protection equipment -- Test method for the determination of drainable volume and its concentration
GB/T 40346-2021 Equipment for crop protection -- Method for measurement of potential spray drift from horizontal boom sprayers by the use of a test bench
GB/T 40347-2021 Crop protection equipment -- Reciprocating positive displacement pumps and centrifugal pumps -- Test method
GB/T 40348-2021 Determination of capsaicinoid in plant derived products -- Liquid chromatography-tandem mass spectrometry
GB/T 40349-2021 WLAN communication module technical specification for household appliances
GB/T 40350-2021 General technical requirements for homeuse polyvinyl chloride artificial leather
GB/T 40351-2021 Ecological technical requirements for recycled Poly(ethylene terephthalate) fiber
GB/T 40352.1-2021 Collection and processing of human tissue biomaterial -- Part 1: Surgical removal tissue biomaterial
GB/T 40353-2021 Air filter paper
GB/T 40354-2021 Carbon steel nonstick cookware
GB/T 40355-2021 Stainless steel vacuum container
GB/T 40356-2021 Kitchen knife
GB/T 40357-2021 Hair products -- Determination of the permeability of hairpiece to air
GB/T 40358-2021 Toilet tissue paper and hand towel -- Specification for the use of recycled fiber
GB/T 40359-2021 Timekeeping instruments -- Photoluminescent deposits -- Test methods and requirements
GB/T 40360-2021 Still beverage metal cans filling and sealing machine -- General technical specifications
GB/T 40361-2021 Beer, carbonated beverage cans filling production line -- General technical specifications
GB/T 40362-2021 Powered toothbrushes -- General requirements and test methods
GB/T 40363-2021 Rigid polyurethane cellular materials used for refrigerated containers and refrigerated trailers
GB/T 40364-2021 Fundamental terminology for human biobank
GB/T 40365-2021 General guide for cell sterility testing
GB/T 40367-2021 Plastics -- Determination of the aerobic biodegradation of nonfloating materials exposed to marine sediment -- Method by analysis of evolved carbon dioxide
GB/T 40368-2021 Determination of kunitz trypsin inhibitor of plant metabolites -- -- Enzyme-linked immunosorbent assay
GB/T 40369-2021 General rules for determination of immunochromatographic test strip
GB/T 40370-2021 Calculation methods for energy consumption index of gas-steam combined cycle cogeneration
GB/T 40371-2021 Gas welding equipment -- Materials for equipment used in gas welding, cutting and allied processes
GB/T 40372-2021 General technical specifications for disinfectant packaging line
GB/T 40373-2021 Single-use face mask manufacturing and packaging production line -- General technical requirements
GB/T 40374-2021 Hardmetals -- Determination of lead and cadmium content -- Flame atomic absorption spectrometric method and inductively coupled plasma atomic emission spectrometry
GB/T 40375-2021 Technical specification of corrosion control operation for metal connection(fastening) structure
GB/T 40376-2021 Cement based binder for interior decoration
GB/T 40377-2021 Corrosion of metals and alloys -- Determination of AC corrosion -- Protection criteria
GB/T 40378-2021 Technical specification of treatment equipments for chemistry laboratory waste water
GB/T 40379-2021 Multifunctional air-handling unit for residential and similar application
GB/T 40380.1-2021 Metallic powders -- Determination of apparent density and flow rate at elevated temperatures -- Part 1: Determination of apparent density at elevated temperatures
GB/T 40380.2-2021 Metallic powders -- Determination of apparent density and flow rate at elevated temperatures -- Part 2: Determination of flow rate at elevated temperatures
GB/T 40381-2021 Specification of sapphire plate for laser window
GB/T 40382-2021 Recycling materials for wrought aluminium alloys
GB/T 40383-2021 Hot-rolled twin-roll cast carbon steel sheet and strip of commercial quality
GB/T 40384-2021 Plastics -- Determination of the transient extensional viscosity of polymer melts
GB/T 40385-2021 Non-destructive testing of steel tubes -- Digital radiographic testing of the weld seam of welded steel tubes for the detection of imperfections
GB/T 40386-2021 Recycling materials for pure aluminium
GB/T 40388-2021 Test method for shear strength of C/C composites
GB/T 40389-2021 Sintered metal materials, excluding hardmetals -- Measurement of surface roughness
GB/T 40390-2021 Evaluation requirements for dedicated outdoor air conditioning equipment
GB/T 40391-2021 Aluminum matrix composite wafers
GB/T 40392-2021 Detection of Legionella in circulating cooling water
GB/T 40393-2021 Corrosion of metals and alloys -- Accelerated corrosion test for intergranular corrosion susceptibility of austenitic stainless steels
GB/T 40394-2021 Determination of trace trimethylamine in methanol for industrial use -- Gas chromatography mass spectrometry
GB/T 40395-2021 Determination of ammonium in methanol for industrial use -- Ion chromatography
GB/T 40396-2021 Test method for glass transition temperature of polymer matrix composites -- Dynamic mechanical analysis(DMA)
GB/T 40397-2021 Household outdoor air dehumidifier
GB/T 40398.1-2021 Test method for C-C composites -- Part 1: Friction and wear property
GB/T 40398.2-2021 Test method for C-C composites -- Part 2: Flexural properties
GB/T 40399-2021 General technical conditions for precast concrete part of prefabricated construction
GB/T 40400-2021 Window decoration for building -- Test methods of protection from strangulation
GB/T 40401-2021 Determination of density by volumetric displacement -- Skeleton density by gas pycnometry
GB/T 40402-2021 Pre-insulated composite plastic pipes with polyethylene casing
GB/T 40403-2021 Corrosion of metals and alloys -- Methodology for determining the resistance of metals to stress corrosion cracking using the four-point bend method
GB/T 40404-2021 Slag material -- Measurement of melting temperature -- High temperature metallographic method
GB/T 40405-2021 Technical specification of screen windows and doors for building
GB/T 40406-2021 Standard test method for static modulus of elasticity and poisson’s ratio of carbon materials in compression