ISO 1550:1973 PDF
Potassium hydroxide for industrial use — Determination of sodium content — Flame emission spectrophotometric method
Open preview (PDF)Potassium hydroxide for industrial use — Determination of sodium content — Flame emission spectrophotometric methodPotassium hydroxide for industrial use — Determination of sodium content — Flame emission spectrophotometric method
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 3
- Publication date:
- December 1, 1973
- Edition:
- ISO IS 1550 edition 1 version 1
- ICS:
- 71.060.40
The method is applicable to products having sodium contents greater than 0.01 % (m/m). The principle consists in the dissolution of a test portion, followed by acidification to ph value 1. Atomization of the obtained solution in the burner of a flame spectrophotometer. Measurement of the intensity of the radiation emitted at 589 nm; comparison with the intensity obtained for standard sodium chloride solutions, the acidity and potassium chloride content of which are equivalent to that of the test solution. - Cancels and replaces ISO Recommendation R 1550-1970.
Technical details
- Technical committee
- ISO/TC 47 - Chemistry
- SKU
- ISO 1550:1973
