This standard specifies a method for the determination of iron content in tin concentrates, applicable to samples with an iron content of 0.50% to 30.00%. The method uses sodium peroxide to analyze the sample, and uses sodium tungstate as an indicator in muriatic acid medium, stannous chloride and titanium trichloride as reducing agents. The oxidation of excess titanium trichloride with the help of oxygen in water, sodium dianiline sulfonate as an indicator, and finally a standard titration solution of cerium sulfate for titration. This method ensures the accuracy and Reliability of iron content determination.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | D41 | ICS | 73.060 |
| Release Date | 2004-02-05 00:00:00 | Implementation Date | 2004-07-01 00:00:00 |
