Standard Guide for
Water Analysis for Reverse Osmosis Application1
This standard is issued under the fixed designation D 4195; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This guide covers the analyses that should be performed
on any given water sample if reverse osmosis application is
being considered.
1.2 This guide is applicable to waters including brackish
waters and seawater but is not necessarily applicable to waste
waters.
1.3 This is a guide only and should not be construed as a
delineation of all ions known to exist in waters.
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
2.1 ASTM Standards:
D 511 Test Methods for Calcium and Magnesium in Water2
D 512 Test Methods for Chloride Ion in Water2
D 513 Test Methods for Total and Dissolved Carbon Dioxide in Water2
D 515 Test Methods for Phosphorus in Water3
D 516 Test Method for Sulfate Ion in Water2
D 857 Test Method for Aluminum in Water2
D 858 Test Methods for Manganese in Water2
D 859 Test Method for Silica in Water2
D 888 Test Methods for Dissolved Oxygen in Water2
D 1068 Test Methods for Iron in Water2
D 1129 Terminology Relating to Water2
D 1179 Test Methods for Fluoride Ion in Water2
D 1253 Test Methods for Residual Chlorine in Water2
D 1293 Test Methods for pH of Water2
D 1428 Test Methods for Sodium and Potassium in Water
and Water-Formed Deposits by Flame Photometry
(Method A)4
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