粗铜和粗铅中金银分析取制样方法及标准化

团结取样代表性和试样加工均匀性等问题，研究了粗铅和粗铅中金银分析试样加工粒度对金银品位的影响，产品锭内金银分布及规律，产品锭与小锭金银分布一致性及产品锭小样锭表层金银分布规律。通过在９个企业取制上千个试样，分析处理万余个数据和认真研究，为制定粗铜粗铅中银分析取制样方法提供了科学依据，并纳入粗铜粗铅技术标准。

Sampling and Standardizing for Analyses of Gold and Silver in Impure Copper and Impure Lead

The influence of sizes of samples for the analysis of gold andsilver in impure copper and impure lead on grades of gold and silver,distri-bution and its rules of gold and silver within a product ingot has beeninvestigated.The consistency of distribution of gold and silver in a productingot with a sampling ingot,and the distribution rule of gold and silver onouter layer of a small sample block were also discussed.In order to observethe representivity of sampling and consistency of processing samples.It furnishesthe scientific basis for formulating a sampling method for analyses of gold andsilver involved in impure copper and impure lead by sampling up to a thousandof samples from nine enteriprisers, analysizing and treating about thousandsof data,and carrying out a serious research.This method has been accomodatedto the technical standards of impure copper and impure lead.