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GB/T 14353.20-2019
Methods for chemical analysis of copper ores, lead ores and zinc ores—Part 20 : Determination of rhenium content—Inductively coupled plasma mass spectroscopy
GB/T 14353.19-2019
Methods for chemical analysis of copper ores, lead ores and zinc ores—Part 19: Determination of tin content—Hydride generation atomic fluorescence spectrometry
GB/T 14304-2019
Sizes for wollen suits
GB/T 14211-2019
Test method of mechanical seal
GB/T 14041.4-2019
Hydraulic fluid power—Filter elements—Part 4: Method for rated end load test
GB/T 13881-2019
Road vehicles—Pneumatic braking connections between towing vehicles and trailers
GB/T 13634-2019
Metallic materials—Calibration of force-proving instruments used for the verification of uniaxial testing machines
GB/T 13247-2019
Methods for sampling and testing the grain size of ferroalloys products
GB/T 12960-2019
Quantitative determination of constituents of cement
GB/T 12771-2019
Welded stainless steel pipes for fluid transport
GB/T 12764-2019
Rolling bearings－Needle roller bearings with drawn cup and without inner ring－Boundary dimensions,geometrical product specifications（GPS）and tolerance values
GB/T 12673-2019
Motor vehicle main dimensions measurement method
GB/T 12466-2019
Terminology of corrosion and protection for ship and marine engineering
GB/T 12234-2019
Bolted bonnet steel gate valves for petroleum and natural gas industries
GB/T 12160-2019
Metallic materials－Calibration of extensometers systems used in uniaxial testing
GB/T 11945-2019
Autoclaved sand-lime solid brick and solid block
GB/T 11365-2019
Bevel gears—ISO system of accuracy
GB/T 11253-2019
Cold-rolled sheet and strip of carbon structural steels
GB/T 10886-2019
Three screw pumps
GB/T 10395.3-2019
Agricultural machinery—Safety—Part 3:Solid fertilizer distributors
