Abstract
The principle of the method specified is decomposition of the test portion by treatment with hydrochloric, nitric and perchloric acids, dehydration of silica, dilution and filtration, ignition of the residue, treatment with hydrofluoric and sulfuric acids, fusion with sodium carbonate, dissolution of the cooled melt in the filtrate, reduction of copper(II) to form the red-violet complex of copper(I), spectrophotometric measurement of the absorbance of the complex at approximately 545 nm. The method is applicable to copper contents between 0,004 % (m/m) and 0,8 % (m/m) in natural iron ores, iron ore concentrates and agglomerates, including sinter products.
General information
-
Status: WithdrawnPublication date: 1994-05Stage: Withdrawal of International Standard [95.99]
-
Edition: 1Number of pages: 9
-
Technical Committee :ISO/TC 102/SC 2ICS :73.060.10
- RSS updates
Life cycle
-
Previously
WithdrawnISO 5418:1984
-
Now
-
Revised by
PublishedISO 5418-1:2006
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)