Standard Test Method for On-Line Measurement of Residue After Evaporation of High-Purity Water

SIGNIFICANCE AND USE
Even so-called high-purity water will contain contaminants. While not always present, these contaminants may contribute one or more of the following: dissolved active ionic substances such as calcium, magnesium, sodium, potassium, manganese, ammonium, bicarbonates, sulfates, nitrates, chloride and fluoride ions, ferric and ferrous ions, and silicates; dissolved organic substances such as pesticides, herbicides, plasticizers, styrene monomers, deionization resin material; and colloidal suspensions such as silica. While this test method facilitates the monitoring of these contaminants in high-purity water, in real time, with one instrument, this test method is not capable of identifying the various sources of residue contamination or detecting dissolved gases or suspended particles.
This test method is calibrated using weighed amounts of an artificial contaminant (potassium chloride). The density of potassium chloride is reasonably typical of contaminants found in high-purity water; however, the response of this test method is clearly based on a response to potassium chloride. The response to actual contaminants found in high-purity water may differ from the test method’calibration. This test method is not different from many other analytical test methods in this respect.
Together with other monitoring methods, this test method is useful for diagnosing sources of RAE in ultra-pure water systems. In particular, this test method can be used to detect leakages such as colloidal silica breakthrough from the effluent of a primary anion or mixed-bed deionizer. In addition, this test method has been used to measure the rinse-up time for new liquid filters and has been adapted for batch-type sampling (this adaptation is not described in this test method).
Obtaining an immediate indication of contamination in high-purity water has significance to those industries using high-purity water for manufacturing components; production can be halted immediately to correct a conta...
SCOPE
1.1 This test method covers the determination of dissolved organic and inorganic matter and colloidal material found in high-purity water used in the semiconductor, aerospace, and other industries. This material is referred to as residue after evaporation (RAE). The range of the test method is from 0.1 g/L(ppb) to 20 mg/L (ppm).
1.2 This test method uses a continuous, real time monitoring technique to measure the concentration of RAE. A pressurized sample of high-purity water is supplied to the test method's apparatus continuously through ultra-clean fittings and tubing. Contaminants from the atmosphere are therefore prevented from entering the sample. General information on the test method and a literature review on the continuous measurement of RAE has been published.
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. For specific hazards statements, see Section 8.

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Historical
Publication Date
31-Dec-2004
Current Stage
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ASTM D5544-05 - Standard Test Method for On-Line Measurement of Residue After Evaporation of High-Purity Water
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D5544–05
Standard Test Method for
On-Line Measurement of Residue After Evaporation of High-
1
Purity Water
This standard is issued under the fixed designation D5544; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D2777 Practice for Determination of Precision and Bias of
Applicable Test Methods of Committee D19 on Water
1.1 This test method covers the determination of dissolved
D3370 Practices for Sampling Water from Closed Conduits
organic and inorganic matter and colloidal material found in
D3864 Guide for Continual On-Line Monitoring Systems
high-purity water used in the semiconductor, and related
for Water Analysis
industries. This material is referred to as residue after evapo-
D3919 Practice for Measuring Trace Elements in Water by
ration (RAE). The range of the test method is from 0.01
Graphite Furnace Atomic Absorption Spectrophotometry
µg/L(ppb) to 20 mg/L (ppm).
D5127 Guide for Ultra-Pure Water Used in the Electronics
1.2 Thistestmethodusesacontinuous,realtimemonitoring
and Semiconductor Industries
technique to measure the concentration of RAE.Apressurized
E1184 Practice for Electrothermal (Graphite Furnace)
sample of high-purity water is supplied to the test method’s
Atomic Absorption Analysis
apparatus continuously through ultra-clean fittings and tubing.
Contaminants from the atmosphere are therefore prevented
3. Terminology
from entering the sample. General information on the test
3.1 Definitions—For definitions of terms used in this test
methodandaliteraturereviewonthecontinuousmeasurement
2 method, refer to Terminology D1129.
of RAE has been published.
3.2 Definitions of Terms Specific to This Standard:
1.3 The values stated in SI units are to be regarded as the
3.2.1 aerosol, n—any solid or liquid particles, with a
standard. The values given in parentheses are for information
nominal size range from 10 nm to 100 µm, suspended in a gas
only.
(usually air).
1.4 This standard does not purport to address all of the
3.2.2 colloidal suspension, n—any material in suspension
safety concerns, if any, associated with its use. It is the
(for example, silica) with a nominal particle size less than 100
responsibility of the user of this standard to establish appro-
nm.
priate safety and health practices and determine the applica-
3.2.3 condensation particle counter (CPC), n—instrument
bility of regulatory limitations prior to use.Forspecifichazards
for detecting very small aerosol particles in a size range from
statements, see Section 8.
approximately 10 nm to 2 to 3 µm. The CPC cannot differen-
2. Referenced Documents tiate between particles of varying size within this size range; it
3
reports the number of particles with a size greater than that
2.1 ASTM Standards:
defined by its detection efficiency curve. Detection is indepen-
D1129 Terminology Relating to Water
dent of particle composition.
3.2.4 detection effıciency, n—in this test method, detection
1
This test method is under the jurisdiction ofASTM Committee D19 on Water
efficiencyrepresentsacurverelatingparticlesizetoacounter’s
and is the direct responsibility of Subcommittee D19.03 on Sampling of Water and
ability to detect that size.
Water-Formed Deposits,Analysis of Water for Power Generation and Process Use,
3.2.5 diffusion screen, n—a fine mesh screen used to filter
On-Line Water Analysis, and Suveillance of Water.
Current edition approved Jan. 1, 2005. Published January 2005. Originally residue particles of a particular size.
approved in 1994. Last previous edition approved in 2004 as D5544–94 (2004).
3.2.6 high-purity water, n—within the context of this test
DOI: 10.1520/D5544-05.
method, high-purity water is defined as water containing
2
Blackford, D. B., and Kerrick, T. A., Proceeding of Microcontamination ’91,
residue after evaporation in the range from 0.1 µg/L to 20
San Jose, CA, 1991, pp. 39–51. Published by Canon Communications Inc., 3340
Ocean Park Blvd., Suite 1000, Santa Monica, CA 90405.
mg/L.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.7 polydisperse, adj—a size population, in this case of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
aerosol particles, composed of many different sizes; the oppo-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. site of monodisperse, a distribution of just one size.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D5544–05
3.2.8 realtime, n—t
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