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GB/T 6609.5-2026
Chemical analysis methods and determination of physical performance of alumina—Part 5：Determination of sodium oxide and potassium oxide contents
GB/T 13589-2026
Recycling material for zinc and zinc alloy
GB/T 10128-2026
Metallic materials—Torsion test at ambient temperature
GB/T 5953-2026
Steel wire for cold heading
GB/T 21237-2026
Wide and heavy plate for line pipe of petroleum and natural gas
GB/T 10127-2026
Corrosion of metals and alloys—Test method for crevice corrosion
GB/T 32968-2026
Coated steel bars for the reinforcement of concrete
GB/T 6480-2026
Detachable bit and rod for rock drilling tools
GB/T 47634-2026
Section steel for transport rail of medium and low speed maglev transit
GB/T 26279-2026
Graphite crucible
GB/T 47603-2026
Recycled gold raw materials
GB/T 16477.2-2026
Chemical analysis methods of rare earth ferrosilicon alloys and rare earth magnesium ferrosilicon alloys—Part 2: Determination of calcium, magnesium, manganese, aluminum, barium, antimony, bismuth, strontium, phosphorus and titanium contents
GB/T 47607-2026
Micro-nano iron powder
GB/T 15076.15-2026
Methods for chemical analysis of tantalum and niobium—Part 15: Determination of hydrogen content—Pulse-infrared absorption method
GB/T 15076.14-2026
Methods for chemical analysis of tantalum and niobium—Part 14: Determination of oxygen and nitrogen contents—Pulse-infrared absorption and thermal conductivity method
GB/T 6150.16-2026
Methods for chemical analysis of tungsten concentrates—Part 16: Determination of iron, manganese, silicon, calcium and tungsten contents—X-ray fluorescence spectrometry
GB/T 6150.11-2026
Methods for chemical analysis of tungsten concentrates—Part 11：Determination of impurity element contents—Inductively coupled plasma atomic emission spectrometry
GB/T 13748.22-2026
Methods for chemical analysis of magnesium and magnesium alloys—Part 22：Determination of thorium content
GB/T 13748.8-2026
Methods for chemical analysis of magnesium and magnesium alloys—Part 8：Determination of rare earth content
GB/T 13748.4-2026
Methods for chemical analysis of magnesium and magnesium alloys—Part 4：Determination of manganese and zirconium content—Spectrophotometric method