short definition: analysis determining composition in samples (ores, scrap, ...)
quantitative and qualitative assessment of a material resource to facilitate transactions in the supply chain or with investors. Assays are made where possible according to standards, and can involve independent, third parties.
synonym: analysis
see also exploration; London Metal Exchange; copper trade; recycling
note: Assays can be used for qualifying ore bodies, on traded copper products such as concentrate or anode, or for evaluating secondary material resources.