Standard Speciﬁcation for Gray Iron Castings1
This trendy is issued underneath the ﬁxed designation a forty eight/a 48m; the variety without delay following the designation shows the yr of authentic adoption or, within the case of revision, the year of final revision. various in parentheses suggests the year of ultimate reapproval. a superscript epsilon (e) indicates a piece of writing alternate since the ultimate revision or reapproval.
this wellknown has been approved to be used by agencies of the branch of defense. this speciﬁcation replaces federal speciﬁcation qq-i-652.
click below to download A 48 free pdf
click here to download A 47 free pdf