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| International Standard Category: Cadmium, cobalt and their alloys |
GB/T 11067.4-1989 Silver-Determination of antimony content-2-(5-bromo -2-pyridylazo)-5-diethylaminophenol spectrophotometricmethod
银化学分析方法 2-(5-溴-2-吡啶偶氮)-5-二乙氨基苯酚分光光度法测定锑量 ;
| Category No.: | 77.120.70 | Valid Status: | superseded |
| Issued Organization: | State Qualtiy Technical Supervision Bureau | Issued Date: | 1989-03-31 |
| Implemented Date: | 1990-2-1 | Abolished Date: | 2007-02-01 |
| Superseded Standard.: | GB/T 11067.4-2006 Methods for chemical analysis of silver - Determination of antimony content - The inductively coupled plasma atomic emission spectrometric method |
Superseded Date: | 2007-2-1 |
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