Standard Speciﬁcation for Reﬁned Platinum1
This trendy is issued under the ﬁxed designation b 561; the wide variety straight away following the designation indicates the yr of original adoption or, within the case of revision, the 12 months of closing revision. A variety of in parentheses shows the year of ultimate reapproval. A superscript epsilon (e) suggests an article alternate since the remaining revision or reapproval.
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