ISO 11433:1993
Nickel alloys; determination of titanium content; diantipyrylmethane molecular absorption spectrometric method
- Standard No.
- ISO 11433:1993
- Release Date
- 1993
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 11433:1993/Amd 1:2013
- Latest
- ISO 11433:2020
- Scope
- The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids, removing hydrochloric acid and nitric acid by evaporation to fumes in the presence of sulfuric acid, forming the titanium diantipyrylmethane complex, measuring the absorbance of the test solution at a wavelength of 390 nm. The method may be used to determine titanium contents in the range of 0,3 % (m/m) to 5,0 % (m/m). Evidence exists that extension of this method is possible for titanium contents down to 0,05 % (m/m); modifications allow to determine titanium in alloys containing tungsten and/or tantalum.
ISO 11433:1993 history
- 2020 ISO 11433:2020 Nickel alloys — Determination of titanium content — Diantipyrylmethane molecular absorption method
- 2013 ISO 11433:1993/Amd 1:2013 Nickel alloys - Determination of titanium content - Diantipyrylmethane molecular absorption spectrometric method - Amendment 1: Alternative procedure for the preparation of the titanium standard solution
- 1993 ISO 11433:1993 Nickel alloys; determination of titanium content; diantipyrylmethane molecular absorption spectrometric method
