ISO 4279:1977 PDF
Aluminium fluoride for industrial use — Determination of sodium content — Flame emission spectrophotometric method
Open preview (PDF)Aluminium fluoride for industrial use — Determination of sodium content — Flame emission spectrophotometric methodAluminium fluoride for industrial use — Determination of sodium content — Flame emission spectrophotometric method
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 4
- Publication date:
- November 1, 1977
- Edition:
- ISO IS 4279 edition 1 version 1
- ICS:
- 71.060.50
Applicable to products having Na contents, expressed as Na2 O, of equal to or more than 0.05 % (m/m). The principle bases on fusion, at a controlled temperature, of a test portion with a mixture of lithium carbonate and boric oxide or with a mixture of lithium carbonate and lithium tetraborate in a platinum or platinum-gold alloy crucible. Extraction of the fused mass with hydeochloric acid solution. Aspiration of the solution into a flame and photometric measurement of the intensity of the radiation emitted at 589 nm.
Technical details
- Technical committee
- ISO/TC 47 - Chemistry
- SKU
- ISO 4279:1977
