GB/T 6887-2007 Sintered metal filter elements

GB/T 6887-1986 Sintered titanium filter and filtration materials GB/T 6888-1986 Sintered nickel filter GB/T 6889-1986 Sintered nickel-copper alloy filter

GB/T 6887-2019 Sintered metal filter elements

GB/T 2524-2002 Sponge titanium 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 GB/T 5235-1985 Wrought nickels and nickel alloys—Chemical composition and forms of wrought products GB/T 5235-2007 Wrought nickel and nickel alloys—Chemical composition and forms of wrought products GB/T 5235-2021 Designation and chemical composition of wrought nickel and nickel alloy GB/T 5250-1993 Permeable sintered metal materials—Determination of fluid permeability GB/T 5250-2014 Permeable sintered metal materials—Determination of fluid permeability GB/T 6886-2001 Sintered stainless steel filter elements GB/T 8647.1-2006 The methods for chemical analysis of nickel—Determination of iron content—Sulfosalicy lic acid spectrophotometric method GB/T 8647.2-2006 The methods for chemical analysis of nickel—Determination of aluminium content—Electrothermal atomic absorption spectrometric method GB/T 8647.3-2006 The methods for chemical analysis of nickel—Determination of silicon content—Molybdenum blue spectrophotometric method GB/T 8647.4-2006 The methods for chemical analysis of nickel—Determination of phosphorous content—Molybdenum blue spectrophotometric method GB/T 8647.5-2006 The methods for chemical analysis of nickel—Determination of magnesium content—Flame atomic absorption spectrometric method GB/T 8647.6-2006 The methods for chemical analysis of nickel—Determination of cadmium,cobalt,copper,manganese,lead and zinc contents—Flame atomic absorption spectrometric method GB/T 8647.7-2006 The methods for chemical analysis of nickel—Determination of arsenic,antimony,bismuth,tin and lead contents—Electrothermal atomic absorption spectrometric method GB/T 8647.8-2006 The methods for chemical analysis of nickel—Determination of sulphur content—Infra-red absorption method after high frequency induction furnace combustion GB/T 8647.9-2006 The methods for chemical analysis of nickel—Determination of carbon content—Infra-red absorption method after high frequency induction furnace combustion GB/T 8647.10-2006 The methods for chemical analysis of nickel—Determination of arsenic,cadmium,lead,zinc,antimony,bismuth,tin,cobalt,copper,manganese,magnesium,silicon,aluminium,iron contents—Atomic emission spectrometric method GB/T 8647.11-2019 Methods for chemical analysis of nickel—Part 11:Determination of magnesium,aluminum,manganese,cobalt,copper,zinc,cadmium,tin,antimony,lead,bismuth contents—Inductively coupled plasma mass spectrometry YS/T 325.1-2009 Methods for chemical analysis of nickel-copper alloy—Part 1:Determination of nickel content—The Na2EDTA titrimetric method YS/T 325.2-2009 Methods for chemical analysis of nickel-copper alloy—Part 2:Determination of copper content—Electrolysis weight method YS/T 325.3-2009 Methods for chemical analysis of nickel-copper alloy—Part 3:Determination of iron content—The flame atomic absorption spectrometric method YS/T 325.4-2009 Methods for chemical analysis of nickel-copper alloy—Part 4:Determination of manganese content—The flame atomic absorption spectrometric method YS/T 325.5-2009 Methods for chemical analysis of nickel-copper alloy—Part 5:Determination of aluminum content—The Na2EDTA titrimetric method YS/T 325.6-2009 Methods for chemical analysis of nickel-copper alloy—Part 6:Determination of titanium content—The diantipyrylmethane molecular absorption spectrometric method ISO 16889