ISO 10136-5:1993
Glas and glassware; analysis of extract solutions; part 5: determination of iron(III) oxide by molecular absorption spectrometry and flame atomic absorption spectrometry
- Standard No.
- ISO 10136-5:1993
- Release Date
- 1993
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 10136-5:1993
- Scope
- The principle of the method specified is reducing the iron in the extract solution, complexing, extracting the complex into chloroform and measurement of the optical density of the resulting colour complex by means of a molecular absorption spectrometer at 533 nm or evaporating with hydrofluoric and perchloric acids, dissolving of the residue in hydrochloric acid, measuring the absorption using a flame atomic absorption spectrometer at 248,3 nm. Measures the concentration of iron, expressed as its oxide Fe2O3. Applies to the analysis of extract solutions obtained from any kind of glass or glassware.
ISO 10136-5:1993 history
- 1993 ISO 10136-5:1993 Glas and glassware; analysis of extract solutions; part 5: determination of iron(III) oxide by molecular absorption spectrometry and flame atomic absorption spectrometry
