scope:

This standard provides minimum requirements for progressive cavity chemical metering pumps used with polymers and aggressive chemicals including sodium hypochlorite (NaOCl), ferric chloride (FeCl₃), sulfuric acid (H₂SO₄), hydrochloric acid (HCl), and other strong acids and bases. This standard includes design, materials, application, testing, and delivery of these metering pumps.

Purpose

The purpose of this standard is to provide minimum requirements for progressive cavity chemical metering pumps suitable for water and wastewater service, including design, materials, application, testing, and delivery.