GB/T 223.5-2008 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method (English Version)
Warning: Personnel using this part of GB/T 223 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 stipulates the determination of acid-soluble silicon and total silicon content in iron and steel by reducing silicomomolybdate spectrophotometry. This section applies to the determination of silicon content in steel with a mass fraction of 0.010% to 1.00%.
GB/T 223.5-2008 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 223.5-2008 history
2008GB/T 223.5-2008 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method
1997GB/T 223.5-1997 Methods for chemical analysis of iron, steel and alloy. The reduced molybdosilicate spectrophotometric method for the determination of acid-soluble silicon content