ASTM D5615-95
(Test Method)Standard Test Method for Operating Characteristics of Home Reverse Osmosis Devices
Standard Test Method for Operating Characteristics of Home Reverse Osmosis Devices
SCOPE
1.1 This test method covers determination of the operating characteristics of home reverse osmosis devices using standard test conditions. It does not necessarily determine the characteristics of the devices operating on natural waters.
1.2 This test method is applicable for spiral-wound devices.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or
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Designation: D 5615 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Operating Characteristics of Home Reverse Osmosis
1
Devices
This standard is issued under the fixed designation D 5615; 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 flow rate and sodium chloride rejection for reverse osmosis
devices at 345-kPa (50-psi) feed gage pressure, 25°C and 22 %
1.1 This test method covers determination of the operating
conversion using an aqueous 300-mg/L sodium chloride solu-
characteristics of home reverse osmosis devices using standard
tion.
test conditions. It does not necessarily determine the charac-
teristics of the devices operating on natural waters.
5. Significance and Use
1.2 This test method is applicable for spiral-wound devices.
5.1 Home reverse osmosis devices are typically used to
1.3 The values stated in SI units are to be regarded as the
remove salts and other impurities from drinking water at the
standard. The values given in parentheses are for information
point of use. They are usually operated at tap water line
only.
pressure, with water containing up to several hundred milli-
1.4 This standard does not purport to address all of the
grams per litre of total dissolved solids. This test method
safety concerns, if any, associated with its use. It is the
permits measurement of the performance of home reverse
responsibility of the user of this standard to establish appro-
osmosis devices using a standard set of conditions and is
priate safety and health practices and determine the applica-
intended for short-term testing (less than 24 h). This test
bility of regulatory limitations prior to use.
method can be used to determine changes that may have
2. Referenced Documents
occurred in the operating characteristics of home reverse
osmosis devices during use, but it is not intended to be used for
2.1 ASTM Standards:
2
system design. This test method does not necessarily determine
D 512 Test Methods for Chloride Ion in Water
the device’s performance when solutes other than sodium
D 1125 Test Methods for Electrical Conductivity and Re-
2
chloride are present. Use Practice D 4516 and Test Methods
sistivity of Water
2
D 4194 to standardize actual field data to a standard set of
D 1129 Terminology Relating to Water
2
conditions.
D 1193 Specification for Reagent Water
2
5.2 This test method is applicable for spiral-wound devices.
D 1293 Test Methods for pH of Water
D 2777 Practice for Determination of Precision and Bias of
6. Apparatus
2
Applicable Methods of Committee D-19 on Water
6.1 The apparatus for the test method is described schemati-
D 4194 Test Methods for Operating Characteristics of
3 cally in Fig. 1. A conductivity meter can be used to determine
Reverse Osmosis Devices
the salt concentration in accordance with Test Methods D 1125.
D4516 Practice for Standardizing Reverse Osmosis Perfor-
3 6.2 Installation:
mance Data
6.2.1 Materials of construction shall preferably be of plastic
3. Terminology
or stainless steel (use 316 or better to minimize corrosion) for
3.1 Definitions—For definitions of terms used in this test all wetted parts to prevent contamination of the feed solution
method, refer to Terminology D 1129. For descriptions of
by corrosion products. Do not use reactive piping material such
terms relating to reverse osmosis, refer to Test Methods as plain carbon steel, galvanized or cadmium-plated carbon
D 4194.
steel, and cast iron for piping. Ensure that no contamination
will occur from oil films on new metal piping, release agents
4. Summary of Test Method
on raw plastic components, or feed solutions used in the system
4.1 This test method consists of determining the permeate
previously. Whether stainless steel or plastic, all pressurized
components should be designed based on the manufacturer’s
1 working pressure rating. Review the manufacturer’s rating for
This test method is under the jurisdiction of ASTM Committee D-19 on Water
and is the direct responsibility of Subcommittee D19.08 on Membranes and Ion compliance with standard engineering practice.
Exchange Materials.
6.2.2 The reverse osmosis testing apparatus is represented
Current edition approved April 15, 1995. Published June 1995. Originally
schematically in Fig. 1. It consists of a feed holding tank
published as D 5615 – 94. Last previous edition D 5615 – 94.
2
equipped with a thermostated heat exchanger system to main-
Annual Book of ASTM Standards, Vol 11.01.
3
Annual Book
...
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