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GB/T 40742.3-2021
Geometrical product specifications (GPS)—Geometrical precision verification—Part 3：Functional gauges and fixtures—Verification when applying maximum material requirements and minimum material requirements
GB/T 40742.2-2021
Geometrical product specifications (GPS)—Geometrical precision verification—Part 2：Verification of form characteristics, orientation characteristics, position characteristics, run-out characteristics and profile characteristics
GB/T 40742.1-2021
Geometrical product specifications (GPS)—Geometrical precision verification—Part 1：Basic concept and measurement—Symbol, terminology, measuring conditions and procedures
GB/T 40617-2021
Guidelines for construction of safety ecological in electrical place
GB/T 9089.1-2021
Electrical installations for outdoor sites under heavy conditions—Part 1: Vocabulary
GB/T 24621.1-2021
Application guide for electric safety of low-voltage switchgear and controlgear assemblies—Part 1: switchgear assemblies
GB/T 40717-2021
Fire-retardant tyres
GB/T 40716-2021
Test method for air retention of motor vehicle tyres
GB/T 26277-2021
Test method for measuring electrical resistance of tyres
GB/T 18115.4-2021
Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 4: Determination of lanthanum, cerium, praseodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium contents in neodymium metal and oxide
GB/T 12690.7-2021
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7: Determination of silicon content
GB/T 12690.4-2021
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 4: Determination of oxygen and nitrogen contents—Impulse-infrared absorption and impulse-thermal conductivity method
GB/T 40798-2021
Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupled plasma mass spectrometry
GB/T 40795.2-2021
Chemical analysis methods of lanthanum-cerium metals and their compounds—Part 2：Determination of rare earth content
GB/T 40795.1-2021
Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1: Determination of cerium content—Ammonium ferrous sulfate titration method
GB/T 40854-2021
Lanthanum-cerium metal
GB/T 40790-2021
Sintered cerium-based and cerium-rich permanent magnet materials
GB/T 22271.2-2021
Plastics—Polyoxymethylene(POM) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
GB/T 13542.2-2021
Plastic films for electrical purposes—Part 2: Methods of test
GB/T 22271.1-2021
Plastics—Polyoxymethylene(POM) moulding and extrusion materials—Part 1:Designation system and basis for specification
