This part of GB/T 223 stipulates the determination of titanium content in iron and steel by diantipyrine methane spectrophotometry. This section applies to the determination of the mass fraction of 0.002%-0.80% titanium content.
GB/T 20066-2006 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
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 6682-2008 Water for analytical laboratory use.Specification and test methods
ISO 5725-3:1994 Accuracy (trueness and precision) of measurement methods and results - Part 3: Intermediate measures of the precision of a standard measurement method
GB/T 223.84-2009 history
2009GB/T 223.84-2009 Steel and iron.Determination of titanium content.Diantipyrylmethane spectrophotometric method