 |
Chinese Classification
Professional Classification
ICS Classification
Latest
Value-added Services
|
| International Standard Category: Lead, zinc, tin and their alloys |
GB/T 12689.6-1990 Zinc and zinc alloys―Determination of tin content―Phenylfluorone-cetyltrimethyla-mmonium bromide spectrophotometric method
锌及锌合金化学分析方法 苯芴酮- 溴化十六烷基三甲胺分光光度法测定锡量 ;
| Category No.: | 77.120.60 | Valid Status: | superseded |
| Issued Organization: | Issued Date: | 1990-12-30 | |
| Implemented Date: | 1992-1-1 | Abolished Date: | 2004-10-01 |
| Superseded Standard.: | GB/T 12689.10-2004 The methods for chemical analysis of zinc and zinc alloys—The determination of tin content—The phenylfluorone-cetyltrimethyla-mmonium bromide spectrophotometric method |
Superseded Date: | 2004-10-1 |
| Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886 |
| Copyright: Foryou Tech Co., Ltd. 2008-2020 |