<TABLE border=0 cellSpacing=0 cellPadding=0 width="100%"><TBODY><TR>Newater pipes lined to ensure long-term integrity
</TR><!-- headline one : end --><!-- show image if available --></TBODY></TABLE>
<!-- START OF : div id="storytext"--><DIV class=story_text><!-- more than 4 paragraphs -->PUB, the national water agency, refers to the Forum Online letter by Ms Goh Guek Cheng last Wednesday, 'Query over coating of Newater pipes'.
The pipes used to convey Newater adhere strictly to standards for potable water. These include Singapore Standard SS375 and United States National Science Foundation Standard NSF61. The pipes are lined to ensure long-term integrity and durability. For the lining to adhere strongly to the pipes, primer is used to prepare the pipe surfaces to receive the lining.
But the xylene present in the primer, if any, is a volatile compound and will evaporate as it dries and cures. The primer will not come into contact with Newater as there is an additional polyurethane lining on top of the primer within the Newater pipe.
Our routine tests carried out on both Newater and reservoir water do not show traces of xylene.
PUB thanks Ms Goh for her feedback.
Chong Hou Chun
Water Supply Network
PUB
<!-- end of for each --><!-- Current Ratings : start --><!-- Current Ratings : end --><!-- vbbintegration : start --><DIV class=vclear><!---vbbTime (Thread ID: 22509) - Start : Mon, 27 Jul 2009 05:47:05:352---><SCRIPT language=javascript>function readCookieVbb() { var errorString = getURLParam("error"); user=getCookie("HTTP_user_id") luser="" if (user!=null) { luser=user.toLowerCase() if (luser == "anonymous" || luser == "anonymous|anonymous") { window.location= p_logoutLink; } } if(user != null && user !=0 && luser!=null && luser != "anonymous" && luser != "anonymous|anonymous") { document.writeln("<table border='0' width='100%' cellspacing='0' id='story_comments' style='display:none'>") document.writeln("<tr id='comments_body' style='display:none'><td colspan='2'>") document.writeln("<table border='0' width='100%' cellspacing='0'>") document.writeln(" <tr ><td class='heading'>Latest comments</td></tr>") document.writeln(" <tr><td id='messageDisplayRegion' width='100%'></td></tr>") document.writeln(" <tr><td align='right'>» Offensive? Unsuitable? Report comment
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</TD></TR><TR><TD style="VERTICAL-ALIGN: top" align=left>Posted by: people at Mon Jul 27 18:09:42 SGT 2009
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</TR><!-- headline one : end --><!-- show image if available --></TBODY></TABLE>
<!-- START OF : div id="storytext"--><DIV class=story_text><!-- more than 4 paragraphs -->PUB, the national water agency, refers to the Forum Online letter by Ms Goh Guek Cheng last Wednesday, 'Query over coating of Newater pipes'.
The pipes used to convey Newater adhere strictly to standards for potable water. These include Singapore Standard SS375 and United States National Science Foundation Standard NSF61. The pipes are lined to ensure long-term integrity and durability. For the lining to adhere strongly to the pipes, primer is used to prepare the pipe surfaces to receive the lining.
But the xylene present in the primer, if any, is a volatile compound and will evaporate as it dries and cures. The primer will not come into contact with Newater as there is an additional polyurethane lining on top of the primer within the Newater pipe.
Our routine tests carried out on both Newater and reservoir water do not show traces of xylene.
PUB thanks Ms Goh for her feedback.
Chong Hou Chun
Water Supply Network
PUB
<!-- end of for each --><!-- Current Ratings : start --><!-- Current Ratings : end --><!-- vbbintegration : start --><DIV class=vclear><!---vbbTime (Thread ID: 22509) - Start : Mon, 27 Jul 2009 05:47:05:352---><SCRIPT language=javascript>function readCookieVbb() { var errorString = getURLParam("error"); user=getCookie("HTTP_user_id") luser="" if (user!=null) { luser=user.toLowerCase() if (luser == "anonymous" || luser == "anonymous|anonymous") { window.location= p_logoutLink; } } if(user != null && user !=0 && luser!=null && luser != "anonymous" && luser != "anonymous|anonymous") { document.writeln("<table border='0' width='100%' cellspacing='0' id='story_comments' style='display:none'>") document.writeln("<tr id='comments_body' style='display:none'><td colspan='2'>") document.writeln("<table border='0' width='100%' cellspacing='0'>") document.writeln(" <tr ><td class='heading'>Latest comments</td></tr>") document.writeln(" <tr><td id='messageDisplayRegion' width='100%'></td></tr>") document.writeln(" <tr><td align='right'>» Offensive? Unsuitable? Report comment
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</TD></TR><TR><TD style="VERTICAL-ALIGN: top" align=left>Posted by: people at Mon Jul 27 18:09:42 SGT 2009
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