组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 37162.4-2023
Hydraulic fluid power—Monitoring the level of particulate contamination of the fluid—Part 4:Use of the light extinction technique
GB/T 42087-2022
Hydraulic fluid power—System—Clean-up procedures and verification of cleanliness method
GB/T 13871.1-2022
Rotary shaft lip-type seals incorporating elastomeric sealing elements—Part 1:Dimensions and tolerances
GB/T 13871.6-2022
Rotary shaft lip-type seals incorporating elastomeric sealing elements—Part 6：Specification of elastomeric materials
GB/T 3452.5-2022
O-rings for fluid power systems—Part 5：Specification of elastomeric materials
GB/T 21540-2022
Hydraulic fluid power—On-line automatic particle-counting systems for liquids—Methods of calibration and validation
GB/T 17489-2022
Hydraulic fluid power—Particulate contamination analysis—Extraction of fluid samples from lines of an operating system
GB/T 34242-2017
GB/T 37162.3-2021
Hydraulic fluid power—Monitoring the level of particulate contamination of the fluid—Part 3:Use of the filter blockage technique
GB/T 15242.4-2021
Dimensions series of rod and piston dynamic seals for hydraulic cylinders—Part 4:Dimensions and tolerances of bearing rings groove
GB/T 15242.3-2021
Dimensions series of rod and piston dynamic seals for hydraulic cylinders—Part 3:Dimensions and tolerances of groove for co-axial seals
GB/T 6577-2021
Types, dimensions and tolerances of groove for seals with bearing rings for hydraulic cylinders piston
GB/T 39926-2021
Hydraulic fluid power—Filter element test methods—Thermal conditioning and cold start-up simulation
GB/T 3452.4-2020
O-rings for fluid power systems—Part 4:Anti-extrusion rings (back-up rings)
GB/T 20671.6-2020
Classification system and test methods for nonmetallic gasket materials—Part 6: Standard test method for adhesion of gasket materials to metal surfaces
GB/T 20671.5-2020
Classification system and test methods for nonmetallic gasket materials—Part 5: Standard test method for creep relaxation of gasket materials
GB/T 20671.3-2020
Classification system and test methods for nonmetallic gasket materials—Part 3: Standard test method for fluid resistance of gasket materials
GB/T 20671.1-2020
Classification system and test methods for nonmetallic gasket materials—Part 1：Standard classification system for nonmetallic gasket materials
GB/T 38175-2019
Hydraulic fluid power—Filter elements—Determination of resistance to flow fatigue using high viscosity fluid
GB/T 21486-2019
Hydraulic fluid power—Filter elements—Sequence of tests for verifying performance characteristics