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Online Catalogue | Potable Water | Rehabilitation

	A Method of Assessing the Corrosivity of Waters Towards Iron. Source Document.
	Order Code: MAN3 ISBN Number: 0902156284 Publisher: WRC No. of Pages: 35 Date of Publication: 1984 Price: £20.00
Internal corrosion of unlined cast iron water mains can cause problems such as discoloured water, poor water pressure and increased rates of leakage and burst frequency. By identifying potentially corrosive supplies, water treatment can be optimised to reduce corrosion. The report describes in detail a standard procedure for measuring the rate of corrosion of cast iron in potable water supplies. The test can be used to evaluate the efficiency of chemical treatments for corrosion control, and additionally yields information about the corrosion product. Lack of stability of the corrosion product may result in discoloured water problems. Corrosion mechanisms Factors affecting the internal Corrosion of iron Mains - the EFFECT of water composition and temperature - the Corrosion Test Building and operating the rig - temperature variations Testing Corrosion inhibitors Determination of Corrosion rate Range of Corrosion rates for UK drinking waters Adhesion of Corrosion products Comparison of high and low velocity results Comparison of Corrosion rates measured from pipes with those measured Using the Test Method



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