GB/T 13840-1992
Abolished
GB/T 15072.2-2025
Active
National standards
GB/T 15072.2-2025 Method for chemical analysis of precious metal alloys—Part 2:Determination of silver content
GB/T 15072.2-2025 Method for chemical analysis of precious metal alloys—Part 2:Determination of silver content
Basic Information
Standard Code:
GB/T 15072.2-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for precious metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2025-08-29
Implement Date:
2026-03-01
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国有色金属标准化技术委员会(SAC/TC 243)
Pages:
20 pages
Scope
本文件描述了通过氯化钠电位滴定法、碘化钾电位滴定法和火试金重量法测定贵金属合金中银含量的测定方法。
本文件中氯化钠电位滴定法和火试金重量法适用于不含金、铂、钯、铑、铱、钌、锇的贵金属合金中银含量的测定,氯化钠电位滴定法测定范围(质量分数):3.00%~99.50%;火试金重量法测定范围(质量分数):2.00%~99.50%;碘化钾电位滴定法适用于贵金属合金中银含量的测定,测定范围(质量分数):3.00%~99.50%。
Development Information
Drafting Units:
贵研检测科技(云南)有限公司、有色金属技术经济研究院有限责任公司、贵研资源(易门)有限公司、北矿检测技术股份有限公司、云南黄金矿业集团贵金属检测有限公司、云南省贵金属新材料控股集团股份有限公司、深圳市中金岭南有色金属股份有限公司丹霞冶炼厂、紫金矿业集团股份有限公司、郴州市产商品质量监督检验所、广东省科学院工业分析检测中心、江西省君鑫贵金属科技材料有限公司、南京市产品质量监督检验院(南京市质量发展与先进技术应用研究院)、金川集团股份有限公司、山东恒邦冶炼股份有限公司、有研亿金新材料有限公司、中宝正信金银珠宝首饰检测有限公司
Drafting Persons:
程山、滕龙、杨辉、向磊、李勇、史博洋、陈晓科、张新苗、龙秀甲、张卓佳、邱彩淋、郁丰善、高瑞峰、马丽、张月、刘朝方、刘振江、金娅秋、杨梅英、韩继标、许铭、李力、赖晓玲、冯虎林、杨华东、陈景兴、陈能、李倍、温帆、林宇、马晓玉、张玉香、钱栋、李秋莹、陈丽华、冯燕波、陈国华、贾贵发、朱武勋、唐福彪
Same series standard
GB/T 15072.1-2025 Methods for chemical analysis of precious metal alloys—Part 1:Determination of gold content
GB/T 15072.3-2025 Methods for chemical analysis of precious metal alloys—Part 3:Determination of platinum content
GB/T 15072.4-2025 Methods for chemical analysis of precious metal alloys—Part 4:Determination of palladium content
GB/T 15072.6-2025 Methods for chemical analysis of precious metal alloys—Part 6:Determination of iridium content
GB/T 15072.20-2025 Methods for chemical analysis of precious metal alloys—Part 20:Determination of rhodium content
Replace the following standards
GB/T 15072.2-2008 Test method of precious metal alloys—Determination of silver contents for silver alloys—Potentionmeter titration with sodium chloride
GB/T 15072.5-2008 Test method of precious metal alloys—Determination of silver content for gold and palladium alloys—Potentionmeter titration with potassium iodide
Referenced Standards
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
GB/T 8170-1987 Rules for rounding off of numberical values
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values
Related Standards
GB/T 15677-1995
Replaced
GB/T 15677-1995 Lanthanum metal
GB/T 3136-1995
abolished_transferred
GB/T 3136-1995 Tantalum powders
GB/T 3463-1995
Abolished
GB/T 3463-1995 Tantalum wires
GB/T 3628-1995
Replaced
GB/T 3628-1995 Tantalum and tantalum alloy foils
GB/T 16476-1996
Replaced