: The primary source for official American Petroleum Institute standards.
Shaft guards must now be sufficiently vented to prevent the accumulation of emissions and allow for visual inspection of the seal without removal. api 610 12th edition pdf exclusive
: Testing now requires 9 data points (up from 6 in the 11th Edition), ensuring a more detailed view of the pump's performance across its allowable operating range. Revised Baseplate & Guarding Standards : : The primary source for official American Petroleum
: API and ISO have ceased "co-branding." The 12th Edition no longer references ISO 13709, and U.S. Customary Units have returned as the primary unit of measure. api 610 12th edition pdf exclusive