API Std 20M

Qualification of Suppliers of Machining Services for Use in the Petroleum and Natural Gas Industries, First Edition
standard by American Petroleum Institute, 10/01/2017

API Std 614

Lubrication, Shaft-sealing and Oil-control Systems and Auxiliaries, Fifth Edition (ISO 10438:2008, Modified), Includes Errata (2008)
standard by American Petroleum Institute, 04/01/2008