Standard Specification for
Coal-Tar-Saturated Organic Felt Used in Roofing and
This wellknown is issued under the constant designation d 227; the range without delay following the designation shows the yr of
unique adoption or, in the case of revision, the year of ultimate revision. quite a number in parentheses suggests the 12 months of last reapproval. a
superscript epsilon (e) indicates an article exchange for the reason that remaining revision or reapproval.
This fashionable has been accredited for use by means of agencies of the branch of defense. this specification replaces federal specification
hh-r-595, type 15c.
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