Covers the design, manufacture, and use of steel derricks, portable masts, crown block assemblies, and substructures suitable for drilling and servicing of wells. It includes stipulations for marking, inspection, standard ratings, design loading, and design specification of the equipment. Definitions of commonly used terms are included in Appendix A.
API 4F:1995 History
API Spec 4F
$70.00 $140.00
API Spec 4F:2013
$64.00 $129.00
API Spec 4F:2008
$70.00 $140.00
API 4F:1995
$72.00 $144.00
More Standards PDF
API RP 11V2 (R2008)
$70.00 $140.00
API RP 687 (R2015)
$149.00 $298.00
API MPMS Chapter 4.2:2001
$72.00 $144.00
API Publ 4700
$72.00 $144.00