GB/T 4437.2-2017 Aluminium and aluminium alloy extruded tubes—Part 2:Seam tubes

GB/T 4437.2-2003 Aluminium and aluminium alloy extruded tubes—Part2:Seam tubes

GB/T 20975.5-2008 Methods for chemical analysis of aluminium and aluminium alloys—Part 5:Determination of silicon content GB/T 20975.6-2008 Methods for chemical analysis of aluminium and aluminium alloys—Part 6:Determination of cadmium content—Flame atomic absorption spectrometric method GB/T 20975.7-2008 Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content—Potassium periodate spectrophotometric method GB/T 20975.8-2008 Methods for chemical analysis of aluminium and aluminium alloys—Part 8:Determination of zinc content GB/T 20975.9-2008 Methods for chemical analysis of aluminium and aluminium alloys—Part 9:Determination of lithium content—Flame atomic absorption spectrometric method GB/T 20975.25-2008 Methods for chemical analysis of aluminium and aluminium alloys—Part 25:Inductively coupled plasma atomic emission spectrometric method GB/T 20975.26-2013 Methods for chemical analysis of aluminium and aluminium alloys—Part 26:Determination of carbon content—Infrared absorption method GB/T 20975.11-2018 Methods for chemical analysis of aluminium and aluminium alloys—Part 11:Determination of lead content GB/T 20975.1-2018 Methods for chemical analysis of aluminium and aluminium alloys—Part 1:Determination of mercury content GB/T 20975.2-2018 Methods for chemical analysis of aluminium and aluminium alloys—Part 2:Determination of arsenic content GB/T 20975.27-2018 Methods for chemical analysis of aluminium and aluminium alloys—Part 27:Determination of cerium,lanthanum,scandium—Inductively coupled plasma atomic emission spectrometry method GB/T 20975.28-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 28:Determination of cobalt content—Flame atomic absorption spectrometry GB/T 20975.29-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 29:Determination of molybdenum content—Thiocyanate spectrophotometry GB/T 20975.30-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 30:Determination of hydrogen content—Heating extraction-thermal conductivity method GB/T 20975.31-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 31:Determination of phosphorus content—Molybdenum blue spectrophotometry GB/T 20975.10-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 10:Determination of tin content GB/T 20975.12-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 12:Determination of titanium content GB/T 20975.14-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 14:Determination of nickel content GB/T 20975.16-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 16:Determination of magnesium content GB/T 20975.18-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content GB/T 20975.22-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 22:Determination of beryllium content GB/T 20975.23-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 23:Determination of antimony content GB/T 20975.24-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 24:Determination of total rare earth content GB/T 20975.25-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 25:Determination of elements content—Inductively coupled plasma atomic emission spectrometric method GB/T 20975.3-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 3:Determination of copper content GB/T 20975.35-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 35:Determination of tungsten content—Thiocyanate spectrophotometric method GB/T 20975.36-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 36:Determination of silver content—Flame atomic absorption spectrometry GB/T 20975.4-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content GB/T 20975.5-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 5:Determination of silicon content GB/T 20975.7-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content GB/T 20975.9-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 9:Determination of lithium content—Flame atomic absorption spectrometry GB/T 20975.37-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 37:Determination of niobium content GB/T 20975.17-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 17:Determination of strontium content GB/T 20975.21-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 21:Determination of calcium content GB/T 20975.6-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 6:Determination of cadmium content GB/T 20975.13-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 13:Determination of vanadium content GB/T 20975.15-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 15:Determination of boron content GB/T 20975.19-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 19:Determination of zirconium content GB/T 20975.20-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 20:Determination of gallium content—Butyrhodamine B spectrophotometric method GB/T 20975.32-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 32:Determination of bismuth content GB/T 20975.33-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 33:Determination of potassium content—Flame atomic absorption spectrometric method GB/T 20975.34-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 34:Determination of sodium content—Flame atomic absorption spectrometric method GB/T 20975.8-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 8:Determination of zinc content