GB/T 42665-2023 Test method for spherical indentation strength of porous ceramics

GB/T 308.1-2013 Rolling bearings—Balls—Part 1:Steel balls GB/T 1182-1996 Geometrical tolerancing—Generalities, definitions, symbols, indications on drawings GB/T 1182-2008 Geometrical Product Specifications(GPS)—Geometrical tolerancing—Tolerances of form, orientation, location and run-out GB/T 1182-2018 Geometrical product specifications(GPS)—Geometrical tolerancing—Tolerances of form,orientation,location and run-out GB/T 3505-2000 Geometrical product specifications (GPS)—Surface texture:Profile method—Terms, definitions and surface texture parameters GB/T 3505-2009 Geometrical Product Specifications (GPS)—Surface texture:Profile method—Terms,definitions and surface texture parameters GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 16825.1-2002 Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system GB/T 16825.1-2008 Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system GB/T 16825.1-2022 Metallic materials—Calibration and verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Calibration and verification of the force-measuring system GB/T 21389-2008 Vernier,dial and digital display calipers GB/T 34484.1-2017 Heat-treatable steels—Part 1:Non-alloy steels

ISO 17170:2015