What is ISO 9647 about?
ISO 9647 is a standard that provides technical specifications for the determination of vanadium content in steel. ISO 9647 specifies a flame atomic absorption spectrometric method (FAAS) for the determination of the vanadium content in steel.
ISO 9647 method is applicable to vanadium contents between 0.01% (mass fraction) and 0.80% (mass fraction), provided that the tungsten content in a 1.0 g test portion is not higher than 1.0% and/or the titanium content is not higher than 0.5%.
Who is ISO 9647 for?
ISO 9647 on determining vanadium content in steel is applicable to:
- Manufacturers of steel and steel components
- Dealers and importers of steel and steel components
- Steel suppliers for steel applications
- Quality control personnel
- Metallurgists
Why should you use ISO 9647?
Vanadium’s role in steel is to refine the structure and grains of steel, thus, reducing steel’s sensitivity to overheating and increasing toughness and strength. In contrast, when vanadium exists as a carbide, it reduces the hardenability of steel. Hence, the determination of vanadium content in steel is important to assess the quality of steel
ISO 9647 helps you perform the flame atomic adsorption spectrometric method by giving you a detailed account of the requirements of the methods. ISO 9647 ensures you perform the test accurately by providing you with the step-by-step procedure for flame atomic spectrometry. ISO 9647 also assists you in calculating the outcome of the test method and expressing them in quantitative terms.
The flame atomic adsorption method given in ISO 9647 helps you to identify and regulate the vanadium content in your steel products thereby improving their quality.
What’s changed since the last update?
BS ISO 9647:2020 supersedes BS 6200‑3.34.3:1990, which is now withdrawn.
Changes in BS ISO 9647:2020 include -
- A complete revaluation of the precision data
- Amendment of the field of application