Significance and Use

Deposits on heat transfer surfaces reduce efficiency of the heat exchanger affected. A method for easily determining the corrosion and fouling tendency of a particular water under heat transfer conditions will allow the evaluation of changes in the various system variables such as heat flux, flow velocity, metallurgy, cycles-of-concentration, and treatment schemes on heat exchanger performance.

1. Scope

1.1 This test method provides directions for fabricating and operating a test apparatus to simultaneously monitor the corrosion and fouling tendency of real and pilot cooling water systems under heat transfer conditions.

1.2 Interpretation of the results of this test method must be left to the investigator. Many variables are involved which may not be easily controlled or fully understood. Variations in design and operating conditions may produce results that are not comparable from unit to unit.

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D1129 Terminology Relating to Water

D2331 Practices for Preparation and Preliminary Testing of Water-Formed Deposits

D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water

G1 Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens

G16 Guide for Applying Statistics to Analysis of Corrosion Data

Keywords

cooling water; corrosion; deposits; fouling; heat transfer; Precipitates; Water corrosivity; Weight loss; Biomass; Condenser and heat exchanger systems; Contamination--water; Cooling systems; Corrosivity--water; Deposit weight; Flow and flow rate--water; Fouling tendency; Heat flux; Heat transfer; Inlet water; Metallurgical materials/applications; Metal weight loss; Particulate matter content--water; Pilot cooling water;

ICS Code

ICS Number Code 13.060.60 (Examination of water for physical properties)

DOI: 10.1520/D4778-10

ASTM International is a member of CrossRef.

ASTM D4778