EJ/T 1027.13-1996 Welding code for mechanical components of PWR nuclear islends Welding procedure qualification of heterogeneous steel

EJ/T 1027.1-1996 Welding code for mechanical components of PWR nuclear islands Accepance of welding material EJ/T 1027.2-1996 Welding code for mechanical components of PWR nuclear islands Qualification of welding materials EJ/T 1027.3-1996 Welding code for mechanical components of PWR nuclear islands Storage and use management of the welding materials EJ/T 1027.4-1996 Welding code for mechanical components of PWR nuclear islands Welding of carbon and low-alloy steel EJ/T 1027.6-1996 Welding code for mechanical components of PWR nuclear islands Welding for helerogeneous steel EJ/T 1027.7-1996 Welding code for mechanical components of PWR nuclear islands Anticorrosion overlaging with austenitic stainless steel EJ/T 1027.8-1996 Welding code for mechanical components of PWR nuclear islands Anticorrosion overlaying with nickel-base alloy EJ/T 1027.9-1996 Welding code for mechanical components of PWR nuclear islands Hardfacing on Valve EJ/T 1027.10-1996 Welding code for mechanical components of PWR nuclear islands Repair of weld defects by welding EJ/T 1027.12-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure qualification of austenilic stainless steel EJ/T 1027.14-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure quelification of anticorrosion overlaying with austenitie stainless steel EJ/T 1027.15-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure qualification of anticorrosion overlaying with nickel-base alloy EJ/T 1027.16-1996 Welding code for mechanical components of PWR nuclear islands Hardfacing procedure qualification on valve EJ/T 1027.17-1996 Welding code for mechanical components of PWR nuclear islands Procedure qualification of repair welding for weld defects EJ/T 1027.18-1996 Welding code for mechanical components of PWR nuclear islands Specification for equiapment production workshops EJ/T 1027.19-1996 Welding code for mechanical components of PWR nuclear islands Qualification of welders and operators

EJ/T 1027.11 EJ/T 1027.12-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure qualification of austenilic stainless steel EJ/T 1027.14-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure quelification of anticorrosion overlaying with austenitie stainless steel EJ/T 1027.15-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure qualification of anticorrosion overlaying with nickel-base alloy EJ/T 1027.17-1996 Welding code for mechanical components of PWR nuclear islands Procedure qualification of repair welding for weld defects EJ/T 1027.18-1996 Welding code for mechanical components of PWR nuclear islands Specification for equiapment production workshops EJ/T 1027.6-1996 Welding code for mechanical components of PWR nuclear islands Welding for helerogeneous steel GB/T 223.3-1988 Methods for chemical analysis of iron, steel and alloy—The diantipyryl methane phosphomolybdate gravimetric method for the determination of phosphorus content GB/T 223.4-1988 Methods for chemical analysis of iron, steel and alloy The volumetric method for determination of manganese content by ammonium nitrate oxidation GB/T 223.4-2008 Alloyed steel—Determination of manganese content—Potentiometric or visual titration method GB/T 223.5-1997 Methods for chemical analysis of iron,steel and alloy—The reduced molybdosilicate spectro photometric method for the determination of acid-soluble silicon content GB/T 223.5-2008 Steel and iron—Determination of acid-soluble silicon and total silicon content—Reduced molybdosilicate spectrophotometric method GB/T 223.6-1994 Methods for chemical analysis of iron, steel and alloy—The neutralization titrimetric method for the determination of boron content GB/T 223.6-2025 Iron,steel and alloy—Determination of boron content—Neutralization titrimetric method and spectrophotometric method GB/T 223.7-2002 Iron powder—Determination of iron content—Potassium dichromate titration method GB/T 223.8-2000 Methods for chemical analysis of iron,steel and alloy The sodium fluoride separation—EDTA titration method for the determination of aluminium content GB/T 223.8-2025 Iron,steel and alloy—Determination of aluminium content—Titrimetric method and spectrophotometric method GB/T 223.9-2000 Methods for chemical analysis of iron,steel and alloy The chrom azurol S photometric method for the determination of aluminium content GB/T 223.9-2008 Iron,steel and alloy—Determination of aluminium content—Chrome azurol S photometric method GB/T 223.10-2000 Methods for chemical analysis of iron,steel and alloy The cupferron separation-chrome azurol S photometric method for the determination of aluminium content GB/T 223.11-1991 Methods for chemical analysis of iron, steel and alloy The ammonium persulfate oxidation volumetric method for the determination of chromium content GB/T 223.11-2008 Iron,steel and alloy—Determination of chromium content—Visual titration or potentiometric titration method GB/T 223.11-2025 Iron, steel and alloy—Determination of chromium content—Titrimetric method and spectrophotometric method GB/T 223.12-1991 Methods for chemical analysis of iron, steel and alloy—The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content GB/T 223.13-2000 Methods for chemical analysis of iron,steel and alloy The ammonium ferrous sulfate titration method for the determination of vanadium content GB/T 223.13-2025 Iron,steel and alloy—Determination of vanadium content—Titrimetric method and spectrophotometric method GB/T 223.14-2000 Methods for chemical analysis of iron,steel and alloy The N-benzoy-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content GB/T 223.16-1991 Methods for chemical analysis of iron, steel and alloy—The chromotropic acid photometric method for the determination of titanium content GB/T 223.17-1989 Methods for chemical analysis of iron, steel and alloy The diantipyrylmethane photometric method for the determination of titanium content GB/T 223.18-1994 Methods for chemical analysis of iron, steel and alloy The sodium thiosulfate separation iodimetric method for the determination of cupper content GB/T 223.19-1989 Methods for chemical analysis of iron, steel and alloy The neocuproine-chloroform extraction photometric method for the determination of copper content GB/T 223.20-1994 Methods for chemical analysis of iron,steel and alloy The potentiometric titration method for the determination of cobalt content GB/T 223.21-1994 Methods for chemical analysis of iron, steel and alloy The 5-Cl-PADAB spectrophotometric method for the determination of cobalt content GB/T 223.22-1994 Methods for chemical analysis of iron, steel and alloy The nitroso-R-salt spectrophotometric method for the determination of cobalt content GB/T 223.23-1994 Methods for chemical analysis of iron, steel and alloy—The dimethylglyoxime spectrophotometric method for the determination of nickel content GB/T 223.23-2008 Iron,steel and alloy—Determination of nickel content—The dimethylglyoxime spectrophotometric method GB/T 223.24-1994 Methods for chemical analysis of iron, steel and alloy The extraction separation—The dimethylglyoxime spectrophotometric method for the determination of nickel content GB/T 223.25-1994 Methods for chemical analysis of iron, steel and alloy The dimethylglyoxime gravimetric method for the determination of nickel content GB/T 223.26-1989 Methods for chemical analysis of iron, steel and alloy The thiocyanate direct photometric method for the determination of molybdenum content GB/T 223.26-2008 Iron,steel and alloy—Determination of molybdenum content—The thiocyanate spectrophotometric method GB/T 223.27-1994 Methods for chemical analysis of iron, steel and alloy The thiocyanate-butyl acetate extraction spectrophotometric method for the determination of molybdenum content GB/T 223.28-1989 Methods for chemical analysis of iron, steel and alloy The α-benzoinoxime gravimetric method for the determination of molybdenum content GB/T 223.29-2008 Iron,steel and alloy—Determination of lead content—Carrier precipitation-xylenol orange spectrophotometric method GB/T 223.30-1994 Methods for chemical analysis of iron, steel and alloy The arsenazo Ⅲ spectrophotometric method for the determination of zirconium content after separation by p-bromomandelic acid GB/T 223.31-1994 Methods for chemical analysis of iron, steel and alloy The distillation-molybdenum blue spectrophotometric method for the determination of arsenic content GB/T 223.31-2008 Iron,steel and alloy—Determination of arsenic content—Distillation-molybdenum blue spectrophotometric method GB/T 223.31-2026 Iron, steel and alloy—Determination of arsenic content—Spectrophotometric method and iodimetric method GB/T 223.32-1994 Methods for chemical analysis of iron, steel and alloy The hypophosphite reduction-iodimetric method for the determination of arsenic content GB/T 223.33-1994 Methods for chemical analysis of iron, steel and alloy The chlorophosphonago mA photometric method for the determination of cerium content after extraction separation GB/T 223.34-2000 Methods for chemical analysis of iron,steel and alloy—The determination of hydrochloric acid-insoluble content of iron powders