EN ISO 16784-1:2008

Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Types of testing
   4.1 Laboratory and off-site testing
   4.2 On-site testing
   4.3 On-line testing
5 Test unit design parameters
   5.1 General
   5.2 Construction materials
6 Operating parameters
   6.1 General
   6.2 Surface temperature
   6.3 Water velocity
   6.4 Residence time
7 Water quality
   7.1 General
   7.2 Natural versus synthetic water supplies
   7.3 Fresh water
   7.4 Seawater and brackish water
   7.5 Recycle/reuse water
   7.6 Dual and combined make-up systems
8 Contamination
   8.1 General
   8.2 Process leaks
   8.3 Biological matter
   8.4 Airborne solids and gases
9 Parameters to be evaluated in pilot test units
   9.1 Corrosion
   9.2 Fouling
   9.3 Practical problems in operating systems - Multiple
        combinations of problems
   9.4 Water treatment additives
10 Design of pilot-scale performance testing facilities
   10.1 Objectives
   10.2 The importance of simulating specific application
        environments
   10.3 Compromises in pilot-scale performance testing
11 Pilot-scale facility operations
   11.1 Documentation of design
   11.2 Repeatability of results and comparison with field
        performance
   11.3 Record-keeping and reports
Bibliography

ISO 16784-1:2006 applies to corrosion and fouling in industrial cooling water systems. ISO 16784-1:2006 covers the criteria that must be defined and implemented in a pilot-scale testing programme to select water treatment programmes for use in specific recirculating cooling water systems.ISO 16784-1:2006 covers only open recirculating cooling water systems. Closed cooling systems and once-through cooling water systems are specifically excluded.The test criteria established in ISO 16784-1:2006 are not intended to govern the type of bench and pilot-scale testing normally carried out by water treatment companies as part of their proprietary product-development programmes. However, water treatment companies may choose to use the criteria in ISO 16784-1:2006 as guidelines in the development of their own product-development test procedures.