GB/T 19345-2003 Amorphous and nanocrystalline soft magnetic alloy strips

GB/T 19345.1-2017 Amorphous and nanocrystalline alloys—Part 1:Fe-based amorphous soft magnetic alloy strips GB/T 19345.2-2017 Amorphous and nanocrystalline alloy—Part 2:Fe-based nanocrystalline soft magnetic alloy strips

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 223.6-1994 Methods for chemical analysis of iron, steel and alloy—The neutralization titrimetric method for the determination of boron 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 223.12-1991 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 223.18-1994 Methods for chemical analysis of iron, steel and alloy The sodium thiosulfate separation iodimetric method for the determination of cupper content GB/T 223.20-1994 Methods for chemical analysis of iron,steel and alloy The potentiometric titration method for the determination of cobalt 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 223.28-1989 Methods for chemical analysis of iron, steel and alloy The α-benzoinoxime gravimetric method for the determination of molybdenum content GB/T 223.38-1985 Methods for chemical analysis of iron, steel and alloy—The anion-exchange separation-gravimetric method for the determination of niobium content GB/T 223.60-1997 Methods for chemical analysis of iron,steel and alloy—The perchloric acid dehydration gravimetric method for the determination of silicon content GB/T 223.60-2024 Iron,steel and alloy—Determination of silicon content—Gravimetric method GB/T 223.71-1997 Methods for chemical analysis of iron,steel and alloy—The gravimetric method after combustion in the pipe furnace for the determination of carbon content GB/T 223.73-1991 Methods for chemical analysis of iron, steel and alloy—The titanium trichloride-potassium dichromate volumetric method for the determination of iron content GB/T 223.73-2008 Iron,steel and alloy—Determination of iron contents—Titanium trichloride-potassium dichromate titration method GB/T 3654.1-1983 Methods for chemical analysis of ferroniobium—The paper chromatograph-gravimetric method for the determination of niobium and tantalum GB/T 3657-1983 Measurement method of direct magnetic properties of soft magnetic alloys GB/T 3658-1990 Soft magnetic alloys—Measuring method for alternative magnetic properties GB/T 3658-2008 Methods of measurement of a.c.magnetic properties of magnetically soft materials GB/T 3658-2022 Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens GB/T 19346-2003 Measuring method of magnetic properties at alternative current for amorphous and nanocrystalline soft magnetic alloys GB/T 19346.1-2017 Amorphous and nanocrystalline alloys measurement methods—Part 1:AC magnetic properties by the use of ring specimens GB/T 19346.2-2017 Methods of measurement for amorphous and nanocrystalline alloys—Part 2:Lamination factor of amorphous alloy strips GB/T 19346.3-2021 Methods of measurement of amorphous and nanocrystalline alloys—Part 3:AC magnetic properties of Fe-based amorphous strip using a single sheet specimen YB/T 5242-2013 General regulations for packaging, labeling, and quality certificate of precision alloys GB/T 223.6-2025 Iron,steel and alloy—Determination of boron content—Neutralization titrimetric method and spectrophotometric method GB/T 223.11-2025 Iron, steel and alloy—Determination of chromium content—Titrimetric method and spectrophotometric method GB/T 223.13-2025 Iron,steel and alloy—Determination of vanadium content—Titrimetric method and spectrophotometric method