This standard specifies the requirements, test methods, inspection rules, packaging, storage, quality forecast form and contract (or order form) for copper anode slime. This standard applies to insoluble substances produced by copper anodes during the electrolytic refining process, which are used to extract precious metals and other valuable elements.
YS/T 991-2014 Referenced Document
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
YS/T 87 Methods for sampling copper and lead anode slime*, 2021-12-02 Update