Standard No.:	GB/T 3884.7-2025
English Name:	Methods for chemical analysis of copper concentrates—Part 7：Determination of lead and zinc contents—Na2EDTA titration method
Chinese Name:	铜精矿化学分析方法 第7部分：铅和锌含量的测定 Na2EDTA滴定法
Chinese Classification:	H13    Heavy metals and their alloys analysis method
Professional Classification:	GB    National Standard
ICS Classification:	77.120.30 77.120.30    Copper and copper alloys 77.120.30
Source Content Issued by:	SAMR; SAC
Issued on:	2025-8-29
Implemented on:	2026-3-1
Status:	to be valid
Superseding:	GB/T 3884.7-2012 Methods for chemical analysis of copper concentrates - Part 7: Determination of lead content - Na2EDTA titration method GB/T 3884.8-2012 Methods for chemical analysis of copper concentrates - Part 8: Determination of zinc content - Na2EDTA titration method
Target Language:	English
File Format:	PDF
Word Count:	9000 words
Translation Price(USD):	270.0
Delivery:	via email in 1~3 business day

本文件描述了Na2EDTA滴定法测定铜精矿和铜渣精矿中铅和锌含量的方法。
本文件适用于铜精矿和铜渣精矿中铅和锌含量的测定，测定范围(质量分数):wp65.00%~20.00%;wzn2.50%～20.00%。
本文件不适用于镍质量分数大于0.10%或钴质量分数大于0.02%的铜精矿和铜渣精矿中锌含量的测定。