23-12: Are We Treating Beakers or Systems: Laboratory Testing and Validation in a Field ContextLaboratory testing of water treatment programs for scale and corrosion control are run and used for several purposes: To evaluate new inhibitors and treatments and predict field performance over a range of systems, and operating parameters. To optimize treatments and determine the minimum effective dosage. To compare existing treatments to proposed treatments. To develop "technically accurate and appropriate" data for sales literature and promotion.