Conditions of Approval of Stainless Steel For Products in Contact with Drinking Water in Public Supply

This paper was presented at the seminar ?Materials in Contact with Drinking Water?, organized for the Water Treatment & Environmental Management Industry in Leeds in June 2002. A review of the approval of stainless steels to the DWI Regulation 25 and the eventual publication of the DWI Operational Guidelines and Code of Practice for Stainless Steel Products in Drinking Water Supply is discussed. The importance of material selection, design, fabrication and maintenance and inspection for the successful application of stainless steels in drinking water applications is outlined, before a more in depth discussion of the approval process for stainless steel is covered.


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