API 13A PDF
Covers physical requirements and test procedures for barite, bentonite, and saltwater clay for use in oil well drilling fluids. Includes addenda dated June 1999API 13A:1993 History
API Spec 13A:2019
$105.00 $211.00
API Spec 13A (R2015)
$101.00 $202.00
API Spec 13A:2006
$72.00 $144.00
API 13A:2004
$72.00 $144.00
API 13A:1993
$72.00 $144.00
More Standards PDF
API RP 939-C:2009
$68.00 $136.00
API RP 13B-1 (R2016)
$92.00 $184.00
API Publ 1673
$45.00 $91.00
API RP 1543 (R2019)
$33.00 $67.00










