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ASTM D4195 2008 Edition, May 1, 2008
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Standard Guide for Water Analysis for Reverse Osmosis and Nanofiltration Application
Includes all amendments and changes through Reapproval Notice , 2014
Page Count:2
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This guide covers the analyses that should be performed on any given water sample if reverse osmosis (RO) or nanofiltration (NF) application is being considered. (See also Test Methods D511, D512, D513, D516, D858, D859, D888, D1068, D1179, D1253, D1293, D1889, D3352, D3370, D3561, D3867, D4189, D4194, and D4382.)

This guide is applicable to waters including brackish waters and seawaters but is not necessarily applicable to waste waters.

This is a guide only and should not be construed as a delineation of all ions known to exist in waters.

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.