Metal & Assaying Norms

A published chemistry serves to inform traders, consumers and producers in distant corners of the globe what standard they may expect when entering a contract. The MMTA provides these standards across a wide range of minor metals as a benchmark.

The publication of norms for a) chemical specification and b) sampling and assaying norms are provided by the MMTA in order to give general trade guidance. In this way the MMTA attempts to set acceptable standards in these two critical fields thus assisting the smooth running of the minor metal trade. As ever in any minor metals contract, any specific agreement between two trading parties may overrule an MMTA standard if agreed by both principals in advance. If you have suggestions for the inclusion of a new norm or the renewal & updating of an old one, please do not hesitate to submit your views in this regard.

Significant as the chemical norms are in providing a standard contractual specification between traders, so the sampling & assaying norms provide detailed guidelines as to how a metal should be weighed, sampled & assayed so that results are universally accepted.

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 Key

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