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GB/T 9735-2008 Active
GB/T 9735-2008 Chemical reagent—General method for the determination of heavy metals
Abstract
This standard specifies a general method for converting heavy metals into sulfides in acetic acid medium and determining them by visual colorimetry. This standard is applicable to the determination of heavy metals in chemical reagents expressed as lead. The detection range of the colorimetry method using saturated hydrogen sulfide aqueous solution is 0.3 μg/mL to 2 μg/mL (expressed as Pb); and the detection range of the colorimetry method using sodium sulfide and propylene glycol is 0.4 μg/mL to 3 μg/mL (expressed as Pb).
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 9735-2008 |
| CCS | Chemical reagents |
| ICS | Chemical reagents |
| Implement Date | 2008-11-01 |
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