Standard Test Method for
Conducting Temperature Uniformity Surveys of Furnaces
Used to Heat Treat Steel Products1
This standard is issued under the fixed designation A 991/A 991M; 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 A 991/A 991M – 98 pdf free downlaod
[wpdm_package id=’2991′]
click here to download Astm A 990 – 03 pdf free download