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 methanol distillation-curcumin photometric method for the determination of boron content. This part is applicable to the determination of boron content in carbon steel, alloy steel, superalloy and precision alloy with a mass fraction of 0.0005% to 0.20%.
GB/T 223.75-2008 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 223.75-2008 history
2008GB/T 223.75-2008 Iron,steel and alloy.Determination of boron content. Methanol distillation-curcumin photometric method
1994GB/T 223.6-1994 Methods for chemical analysis of iron,steel and alloy. The neutralization titrimetric method for the determination of boron content
1981GB 223.6-1981 Determination of boron content in iron,steel and alloy