RP0300-2000 is the text of Part 1 of ISO/DIS 16784-1. The 2003 edition includes minor revisions. NACE will want to adopt as an identical standard when it is published. Covers criteria that must be defined and implemented in a pilot-scale testing program to select water treatment programs for use in specific recirculating cooling water systems. It covers only open recirculating cooling water systems. Closed cooling systems and once-through cooling water systems are specifically excluded. It applies only to systems incorporating shell-and-tube heat exchangers with standard uncoated smooth tubes and cooling water on the tube side. Heat exchangers with shell-side water, plate and frame and/or spiral heat exchangers, and other heat-exchange devices are specifically excluded. The test criteria are not intended to govern bench and pilot-scale testing normally done by water treatment companies. However, water treatment companies may choose to use the criteria in this standard as guidelines in the development of their own product-development test procedures.