GB/T 4372.1-2014 《Methods for chemical analysis of zincoxide produced by direct process―Part 1：Determination of zinc oxide content―Na2EDTA titration method》 Related products
This standard specifies the method for the determination of zinc oxidation content in direct method zinc oxidation. This method is suitable for the determination of samples with zinc oxidation content ≥ 98.00%. In the analysis, after the sample is dissolved with dilute sulfuric acid, in the hexamethylenetetramine sulfuric acid buffer solution with pH value of 5~ 6, potassium iodide is added to mask cadmium and sodium sulfite to mask lead. Using xylenol orange as an indicator, the zinc oxidation content is calculated by titration with Na2EDTA standard solution to the bright yellow endpoint. This method ensures the accurate determination of high purity zinc oxidation.
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 | H13 | ICS | 77.120.60 |
| Release Date | 2014-12-05 00:00:00 | Implementation Date | 2015-08-01 00:00:00 |
Extended reading
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