GB/T 3620.2-1994 Titanium and titanium alloys-permissible variations of chemical composition for Wrought product analysis

GB/T 3620.1-1994 Designation and composition of titanium and titanium alloys

GB 3620-1983

GB/T 3620.2-2007 Titanium and titanium alloys—permissible variations of chemical composition for wrought product analysis

GB/T 222-1984 Method of sampling steel for determination of chemical composition and permissible variations for product analysis GB/T 222-2006 Permissible tolerances for chemical composition of steel products GB/T 222-2025 Steels and alloys—Permissible deviations of product analyzed chemical composition GB/T 4698.1-1996 Sponge titanium, titanium and titanium alloys—Determination of copper content—Diethyldithiocarbamate spectrophotometric method GB/T 4698.1-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 1:Determination of copper content—Flame atomic absorption spectrometry GB/T 4698.2-1996 Sponge titanium, titanium and titanium alloys—Determination of iron content—1,10-Phenanthroline spectrophotometric method GB/T 4698.2-2011 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Determination of iron content GB/T 4698.3-1996 Sponge titanium, titanium and titanium alloys—Determination of silicon content—Molybdenum blue spectrophotometric method GB/T 4698.3-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 3:Determination of silicon content—Molybdenum blue spectrophotometry GB/T 4698.4-1996 Sponge titanium, titanium and titanium alloys—Determination of manganese content—Potassium periodate spectrophotometric method GB/T 4698.4-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 4:Determination of manganese content—Potassium periodate spectrophotometry and inductively coupled plasma atomic emission spectrometry GB/T 4698.5-1996 Sponge titanium, titanium and titanium alloys—Determination of molybdenum content—Thiocyanate spectrophotometric method GB/T 4698.5-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 5:Determination of molybdenum content—Thiocyanate spectrophotometry and inductively coupled plasma atomic emission spectrometry GB/T 4698.6-1996 Sponge titanium, titanium and titanium alloys—Determination of boron content—Extraction—methylene blue spectrophotometric method GB/T 4698.6-2019 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 6:Determination of boron content—Methylene blue spectrophotometry and inductively coupled plasma atomic emission spectrometry GB/T 4698.7-1996 Sponge titanium, titanium and titanium alloys—Determination of nitrogen content—Distillation—Nessler reagent spectrophotometric method GB/T 4698.7-2011 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Determination of oxygen and nitrogen content GB/T 4698.8-1996 Sponge titanium, titanium and titanium alloys—Determination of aluminum content—Separation with sodium hydroxide-EDTA complexometric titration method GB/T 4698.8-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 8:Determination of aluminum content—Separation with sodium hydroxide-EDTA complex-metric titration and inductively coupled plasma atomic emission spectrometry GB/T 4698.9-1996 Sponge titanium, titanium and titanium alloys—Determination of tin content—Potassium iodate titration method GB/T 4698.9-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 9:Determination of tin content— Potassium iodate titration and inductively coupled plasma atomic emission spectrometry GB/T 4698.10-1996 Sponge titanium, titanium and titanium alloys—Determination of chromium content in the presence of Vanadium—Ammonium ferrous sulfate titration method GB/T 4698.10-2020 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 10:Determination of chromium content—Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry(with vanadium) GB/T 4698.11-1996 Sponge titanium, titanium and titanium alloys—Determination of chromium content in the absence of Vanadium—Ammonium ferrous sulfate titration method GB/T 4698.12-1996 Sponge titanium, titanium and titanium alloys—Determination of vanadium content—Ammonium ferrous sulfate titration method GB/T 4698.12-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 12:Determination of vanadium content—Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry GB/T 4698.13-1996 Sponge titanium, titanium and titanium alloys—Determination of zirconium content—EDTA complexometric titration method GB/T 4698.13-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 13:Determination of zirconium content—EDTA complexometric titration and inductively coupled plasma atomic emission spectrometry GB/T 4698.14-1996 Sponge titanium, titanium and titanium alloys—Determination of carbon content—Combustion coulometric method GB/T 4698.14-2011 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Determination of carbon content GB/T 4698.15-1996 Sponge titanium, titanium and titanium alloys—Determination of hydrogen content—Vacuum heating gas chromatographic method GB/T 4698.15-2011 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Determination of hydrogen content GB/T 4698.16-1996 Sponge titanium, titanium and titanium alloys—Determination of oxygen content—Inert gas fusion coulometric method GB/T 4698.17-1996 Sponge titanium, titanium and titanium alloys—Determination of magnesium content—Flame atomic absorption spectrometric method GB/T 4698.17-2019 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 17:Determination of magnesium content—Flame atomic absorption spectrometry GB/T 4698.18-1996 Sponge titanium, titanium and titanium alloys—Determination of tin content—Flame atomic absorption spectrometric method GB/T 4698.18-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 18:Determination of tin content—Flame atomic absorption spectrometry GB/T 4698.19-1996 Sponge titanium, titanium and titanium alloys—Determination of molybdenum content—Thiocyanate differential spectrophotometric method GB/T 4698.19-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 19:Determination of molybdenum content—Thiocyanate-differential spectrophotometry GB/T 4698.20-1996 Sponge titanium, titanium and titanium alloys—Determination of manganese content—Potassium periodate spectrophotometric method GB/T 4698.21-1996 Sponge titanium, titanium and titanium alloys—Determination of manganese, chromium, nickel, aluminum, molybdenum, tin, vanadium, yttrium, copper, zirconium content—Emission spectrographic method GB/T 4698.21-2019 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 21:Determination of manganese,chromium,nickel,aluminum,molybdenum,tin,vanadium,yttrium,copper and zirconium content—Atomic emission spectrometry GB/T 4698.22-1996 Sponge titanium, titanium and titanium alloys—Determination of niobium content—2-(5-Bromo-2-pyridylazo)-5-Diethylaminophenol spectrophotometric method GB/T 4698.22-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 22:Determination of niobium content—5-Br-PADAP spectrophotometry and inductively coupled plasma atomic emission spectrometry GB/T 4698.23-1996 Sponge titanium, titanium and titanium alloys—Determination of palladium content—Stannous choride—Potassium iodide spectrophotometric method GB/T 4698.23-2017 Methods for chemical analysis of titanium sponge，titanium and titanium alloys—Part 23:Determination of palladium content—Stannous choride-potassium iodide spectrophotometry and inductively coupled plasma atomic emission spectrometry GB/T 4698.24-1996 Sponge titanium, titanium and titanium alloys—Determination of nickel content—Dimethylglyoxime spectrophotometric method GB/T 4698.24-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 24:Determination of nickel content—Dimethylglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry GB/T 4698.25-1996 Sponge titanium, titanium and titanium alloys—Determination chlorine content—Silver sulfide spectrophotometric method GB/T 4698.25-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 25:Determination of chlorine content—Silver chlorin spectrophotometry GB/T 4698.26-2024 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 26:Determination of tantalum and tungsten content—Inductively coupled plasma atomic emission spectrometry GB/T 4698.27-2017 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 27:Determination of neodymium content—Inductively coupled plasma atomic emission spectrometry GB/T 4698.28-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 28: Determination of ruthenium content—Inductively coupled plasma atomic emission spectrometry GB/T 4698.29-2024 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 29:Determination of aluminum,carbon,chromium,copper,iron,manganese,molybdenum,nickel,silicon,tin,vanadium and zirconium contents—Spark atomic emission spectrometry