Standard Specification for Black Synthetic Iron Oxide1
This wellknown is issued underneath the fixed designation d 769; the variety right now following the designation suggests the 12 months of authentic adoption or, within the case of revision, the yr of remaining revision. A number in parentheses indicates the year of remaining reapproval. A superscript epsilon (e) suggests a piece of writing exchange for the reason that final revision or reapproval.
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