ISO 4283:1993 PDF
All grades of fluorspar — Determination of carbonate content — Titrimetric method
Title (English):
ISO 4283:1993
All grades of fluorspar — Determination of carbonate content — Titrimetric method
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 5
- Publication date:
- January 21, 1993
- Edition:
- ISO IS 4283 edition 3 version 1
- ICS:
- 73.080
Description (English):
The principle of the method specified is treatment of a test portion with hydrochloric acid solution, absorption of the evolved carbon dioxide in barium hydroxide solution, neutralization of excess alkali with hydrochloric acid solution, addition of an exactly measured excess of a standard volumetric hydrochloric acid solution to dissolve the precipitated barium carbonate and back-titration with a standard volumetric sodium hydroxide solution using methyl orange as indicator. The method is applicable to products having carbonate contents equal to or greater than 0,04 % (m/m).
Technical details
- Technical committee
- ISO/TC 175 - Fluorspar
- SKU
- ISO 4283:1993
