This standard was last reviewed and confirmed in 2015. Therefore this version remains current.
Applicable to the determination of Fe contents, expressed as Fe2 O3 , of more than 0.020 % (m/m). Covers the dissolution of a test portion by alkaline fusion by means of sodium carbonate and boric acid. Dissolving of the residue with nitric acid solution and reduction of iron(III) by means of hydroxylammonium chloride. Formation of the iron(II)-1,10-phenanthroline complex in a buffered medium at a pH between 3.5 and 4.2. Photometric measurement of the coloured complex at a wavelength of about 510 nm.
Status: PublishedPublication date: 1976-07
Edition: 1Number of pages: 4
Technical Committee: ISO/TC 226 Materials for the production of primary aluminium
- ICS :
- 71.100.10 Materials for aluminium production
Buy this standard
|std 1 40|
|std 2 40||Paper|
A standard is reviewed every 5 years
Stage: 90.60 (Under review)
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.