Coal β Determination of extractable metals in dilute hydrochloric acid.
"ISO/FDIS 1952" refers to a specific standard document in the development stage, published by the International Organization for Standardization (ISO), titled "Coal - Determination of extractable metals" where "FDIS" stands for "Final Draft International Standard" - meaning it's the final version of the standard before it is officially published and ready for final approval by member countries.Β
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