scope:

This standard covers the minimum requirements for controlled volume positive displacement pumps for use in service in the petroleum, chemical, and gas industries. Both packed-plunger and diaphragm types are included. Diaphragm pumps that use direct mechanical actuation are excluded. See API Standard 674 for reciprocating pumps and Standard 676 for rotary pumps.

Note: A bullet (•) at the beginning of a paragraph indicates that either a decision is required or further information is tob e provided by the purchaser. This information should be indicatedo n the data sheets (see Appendix A); otherwise it should be stated in the quotation requeostr in the order.