Standard Test Method for Sulfate Ion in Water1
This preferred is issued underneath the ﬁxed designation d 516; the quantity immediately following the designation suggests the 12 months of original adoption or, in the case of revision, the yr of last revision. A number in parentheses indicates the 12 months of final reapproval. A superscript epsilon (e) shows a piece of writing change because the final revision or reapproval.
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