WARNING: Personnel applying this standard should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part of GB/T 223 specifies the determination of iron content by titanium trichloride-potassium dichromate titration. This part applies to the determination of iron content in superalloys and precision alloys with a mass fraction of 0.50% to 8.00%.
GB/T 223.73-2008 Referenced Document
GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
GB/T 6379.1 Accuracy(trueness and precision)of measurement methods and results Part 1:General principles and definitions
GB/T 6379.2 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 223.73-2008 history
2008GB/T 223.73-2008 Iron,steel and alloy.Determination of iron contents. Titanium trichloride-potassium dichromate titration method
1991GB/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