GB/T 20127.13-2006 Steel and alloy—Determination of trace element contents—Part 13:Determination of tin content by iodide extraction-phenylfluorone photometric method

GB/T 20127.1-2006 Steel and alloy—Determination of trace element contents—Part 1:Determination of silver content by graphite furnace atomic absorption spectrometric method GB/T 20127.2-2006 Steel and alloy—Determination of trace element contents—Part 2:Determination of arsenic content by hydride generation-atomic fluorescence spectrometric method GB/T 20127.3-2006 Steel and alloy—Determination of trace element contents—Part 3:Determination of calcium, magnesium, barium content by inductively coupled plasma atomic emission spectrometric method GB/T 20127.4-2006 Steel and alloy—Determination of trace element contents—Part 4:Determination of copper content by graphite furnace atomic absorption spectrometric method GB/T 20127.5-2006 Steel and alloy—Determination of trace element contents—Part 5:Determination of gallium content by extraction separation-rhodamine B photometric method GB/T 20127.6-2006 Steel and alloy—Determination of trace element contents—Part 6:Determination of germanium content by gallic acid oscillopolarographic method GB/T 20127.7-2006 Steel and alloy—Determination of trace element contents—Part 7:Determination of lead content by oscillopolarographic method GB/T 20127.8-2006 Steel and alloy—Determination of trace element contents—Part 8:Determination of antimony content by hydride generation-atomic fluorescence spectrometric method GB/T 20127.9-2006 Steel and alloy—Determination of trace element contents—Part 9:Determination of scandium content by inductively coupled plasma atomic emission spectrometric method GB/T 20127.10-2006 Steel and alloy—Determination of trace element contents—Part 10:Determination of selenium content by hydride generation-atomic fluorescence spectrometric method GB/T 20127.11-2006 Steel and alloy—Determination of trace element contents—Part 11:Determination of indium and thallium contents by inductively coupled plasma-mass spectrometric method GB/T 20127.12-2006 Steel and alloy—Determination of trace element contents—Part 12:Determination of zinc content by flame atomic absorption spectrometric method

GB/T 20066-2006 Steel and iron—Sampling and preparation of samples for the determination of chemical composition GB/T 6379-1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by interlaboratory tests GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results—Part 1:General principles and definitions GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method GB/T 6379.3-2012 Accuracy(trueness and precision)of measurement methods and results—Part 3:Intermediate measures of the precision of a standard measurement method GB/T 6379.4-2006 Accuracy (trueness and precision) of measurement methods and results—Part 4:Basic methods for the determination of the trueness of a standard measurement method GB/T 6379.5-2006 Accuracy (trueness and precision) of measurement methods and results—Part 5:alternative methods for the determination of the precision of a standard measurement method GB/T 6379.6-2009 Accuracy(trueness and precision)of measurement methods and results—Part 6:Use in practice of accuracy values GB/T 6379.4-2025 Accuracy(trueness and precision)of measurement methods and results—Part 4:Basic methods for the determination of the trueness of a standard measurement method