Standard Test Method for
Concrete Sewer Manholes by the Negative Air Pressure
(Vacuum) Test Prior to Backfill1
This standard is issued under the fixed designation C 1244; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
Click below to download Astm C 1244 – 02 Pdf free
[wpdm_package id=’10638′]
Click here to Astm C 1243 – 93 (Reapproved 2003) Pdf free download