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Std ID |
Description (Standard Title) |
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GB/T 12224-2015
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General requirements for industrial steel valves
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GB/T 12225-1989
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General purpose industrial valves. Specification of copper alloy castings
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GB/T 12225-2005
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General purpose industrial valves -- Specification of copper alloy castings
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GB/T 12226-1989
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General purpose industrial valves. Specification of flake graphite iron castings
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GB/T 12226-2005
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General purpose industrial valve -- Specification of flake graphite iron castings
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GB/T 12227-1989
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General purpose industrial valves. Specification of spheroidal graphite iron castings
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GB/T 12227-2005
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General purpose industrial valve -- Specification of spheroidal graphite iron castings
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GB/T 12228-1989
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General purpose industrial valves. Specification of carbon steel forgings
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GB/T 12228-2006
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General purpose industrial valves - Specification of carbon steel forgings
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GB/T 12229-1989
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General purpose industrial valves--Specification of carbon steel castings
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GB/T 12229-2005
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General purpose industrial valves -- Specification of spheroidal graphite iron castings
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GB/T 12230-1989
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General purpose industrial valves. Specification of steel castings
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GB/T 12230-2005
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General purpose industrial valves -- Specification of stainless steel castings
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GB/T 12232-1989
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General purpose industrial valves--Flanged iron gate valves
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GB/T 12232-2005
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General purpose industrial valve -- Flanged iron gate valves
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GB/T 12233-1989
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General purpose industrial valves--Casting iron globe valves and lift check valves
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GB/T 12233-2006
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General purpose industrial valves -- Casting iron globe valves and lift check valves
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GB/T 12234-1989
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General purpose industrial valves. Flanged and buttweld steel gate valves
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GB/T 12234-2007
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Bolted bonnet steel gate valves for petroleum and natural gas industries [including MODIFICATION 1]
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GB/T 12235-1989
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General purpose industrial valves--Flanged steel globe valves and lift check valves
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GB/T 12235-2007
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Steel globe valves and lift check valve for petroleum, petrochemical and allied industries [including MODIFICATION 1]
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GB/T 12236-1989
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General purpose industrial valves--Steel swing check valves
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GB/T 12236-2008
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Steel swing check valve for petroleum, petrochemical and allied industries
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GB/T 12237-1989
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General purpose industrial valves--Flanged and butt-weld end steel ball valves
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GB/T 12237-2007
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Steel ball valves for petroleum, petrochemical and allied industries
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GB/T 12238-1989
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General purpose industrial valves--Flanged and wafer butterfly valves
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GB/T 12238-2008
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Flanged and wafer resilient seal butterfly valves
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GB/T 12239-1989
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General purpose industrial valves--Diaphragm valves
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GB/T 12239-2008
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Industrial valves -- Diaphragm valves made of metallic materials
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GB/T 12240-1989
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General purpose industrial valves--Iron plug valves
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GB/T 12240-2008
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Iron plug valves
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GB/T 12241-1989
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Safety Valves-General Requirements
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GB/T 12241-2005
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Safety valves -- General requirements
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GB/T 1224-1976
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General terms and signs for geometrical optics
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GB/T 1224-1999
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Vocabulary and character for geometrical optics
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GB/T 1224-2016
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Vocabulary and character for geometrical optics
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GB/T 12242-1989
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Performance Test Code - Safety Devices
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GB/T 12242-2005
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Performance test code -- Pressure relief devices
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GB/T 12243-1989
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Spring loaded safety valves
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GB/T 10047.1-2005
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Camera -- Part 1: Civil miniature camera
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GB/T 12244-1989
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General specification for pressure reducing valves
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GB/T 12244-2006
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General requirements for pressure reducing valves
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GB/T 12245-1989
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Methods of performance test for pressure reducing valves
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GB/T 12245-2006
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Methods of performance test for pressure reducing valves
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GB/T 12246-1989
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Pilot-operated reducing valves
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GB/T 12246-2006
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Pilot operated pressure reducing valves
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GB/T 12247-1989
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Automatic steam traps. Classification
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GB/T 12247-2015
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Automatic steam traps -- Classification
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GB/T 12248-1989
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Automatic steam traps-Definition of technical terms
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GB/T 12249-1989
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Automatic steam traps-Definition of technical terms
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GB/T 12250-1989
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Automatic steam traps. Face-to-face dimensions
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GB/T 12250-2005
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Automatic steam traps -- Term, Marking, Face-to-face dimensions
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GB/T 12251-1989
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Automatic steam traps. Test methods
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GB/T 12251-2005
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Automatic steam traps -- Test methods
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GB/T 12252-1990
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General purpose industrial valves--Delivery specification
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GB/T 12256-1990
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Test method for stiffness of hypodermic needle tubing
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GB/T 1226-1986
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General pressure gauges
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GB/T 1226-2001
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General pressure gauge
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GB/T 1226-2010
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General pressure gauge
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GB/T 12267-1990
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Marine navigational equipment--General requirements--Methods of testing and required test results
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GB/T 12269-1990
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Generic specification for radio-frequency cables
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GB/T 12270-1990
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Electrical tests and measuring procedures for radio-frequency coaxial connectors screening effectiveness
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GB/T 12271-1990
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Measuring methods of RF insertion loss for radio-frequency coaxial connectors
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GB/T 1227-1986
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Accurate pressure gauges
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GB/T 1227-2002
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Accurate pressure gauge
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GB/T 1227-2010
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Accurate pressure gauge
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GB/T 12272-1990
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Measuring method of radio-frequency high potential withstanding voltage for radio-frequency coaxial connectors
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GB/T 12273.501-2012
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Quartz crystal units -- A specification in the quality assessment system for electronic components -- Part 5.1: Blank detail specification -- Qualification approval
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GB/T 12273-1996
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Quartz crystal units. A specification in the quality assessment system for electronic components. Part 1: Generic specification
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GB/T 12274.1-2012
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Quartz crystal controlled oscillators of assessed quality -- Part 1: Generic specification
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GB/T 12274-1990
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Quartz crystal controlled oscillators--Generic specification for
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GB/T 12275-1990
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The rule of type designation for quarz crystal oscillators
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GB/T 12276-1990
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Fixed resistors for use in electronic equipment. Part 7: Sectional specification. Fixed resistor networks in which not all resistors are individually measurable
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GB/T 12277-1990
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Fixed resistors for use in electronic equipment. Part 7: Blank detail specification. Fixed resistor networks in which not all resistors are individually measurable. Assessment level E
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GB/T 12278-1990
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Spherical plain radial bearings, joint type-Redial internal clearance
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GB/T 12280-1990
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Test methods for noise generator
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GB/T 12281-1990
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Requirements for the interconnections and matching of color television broadcast receivers and other equipment
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GB/T 1228-1991
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High strength bolts with large hexagon head for steel structures
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GB/T 10047-1988
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Camera
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GB/T 12283-1990
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Fruits, vegetables and derived products--Decomposition method of organic matter
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GB/T 12284-1990
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Fruit and vegetable products--Determination of copper content--Photometric method
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GB/T 12285-1990
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Fruits, vegetables and derived products--Determination of zinc content
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GB/T 12286-1990
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Fruits, vegetables and derived products--Determination of iron content--1. 10 Phenanthroline photometric method
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GB/T 12287-1990
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Fruit and vegetable products--Determination of tin
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GB/T 12288-1990
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Fruit and vegetable products--Determination of ethanol
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GB/T 12289-1990
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Fruits, vegetables and derived products--Determination of benzoic acid content
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GB/T 12290-1990
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Fruits, vegetables and derived products--Determination of sorbic acid content
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GB/T 12291-1990
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Juice of fruits and vegetables--Determination of carotenoid total
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GB/T 1229-1991
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High strength large hexagon nuts for steel structures
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GB/T 11026.6-2010
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Electrical insulating materials -- Thermal endurance properties -- Part 6: Ageing ovens -- Multi-chamber ovens
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GB/T 12292-1990
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Juice of fruits and vegetables--Determination of free amino acid
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GB/T 12293-1990
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Fruit and vegetable products--Determination of titratable acidity
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GB/T 12294-1990
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Fruit and vegetable products--Determination of mineral impurities
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GB/T 12295-1990
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Fruit and vegetable products--Determination of soluble solids--Refractometric method
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GB/T 12296-1990
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Fruit and vegetable products--Determination of water-insoluble solids
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GB/T 12300-1990
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Test methods of safe operating area for power transistors
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GB/T 12301-1990
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Detection methods for harmful gas evolved from non-dangerous cargo in holds
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GB/T 12301-1999
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Detection methods for harmful gas evolved from non-dangerous cargo in holds
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GB/T 1230-1991
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High strength plain washers for steel structures
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GB/T 11026.7-2014
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Electrical insulating materials -- Thermal endurance properties -- Part 7: Determination of relative thermal endurance index (RTE) of insulating material
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