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

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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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Status
Historical
Publication Date
14-Sep-1994
Current Stage
Ref Project

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ASTM D5544-94(2004) - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation:D5544–94(Reapproved2004)
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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope Applicable Methods of Committee D19 on Water
D3370 PracticesforSamplingWaterfromClosedConduits
1.1 This test method covers the determination of dissolved
D3864 Practice for Continual On-line Monitoring Systems
organic and inorganic matter and colloidal material found in
for Water Analysis
high-purity water used in the semiconductor, aerospace, and
D3919 Practice for Measuring Trace Elements in Water by
other industries. This material is referred to as residue after
Graphite Furnace Atomic Absorption Spectrophotometry
evaporation (RAE). The range of the test method is from 0.1
E 1184 Practice for Electrothermal (Graphite Furnace)
µg/L(ppb) to 20 mg/L (ppm).
Atomic Absorption Analysis
1.2 Thistestmethodusesacontinuous,realtimemonitoring
technique to measure the concentration of RAE.Apressurized
3. Terminology
sample of high-purity water is supplied to the test method’s
3.1 Definitions—For definitions of terms used in this test
apparatus continuously through ultra-clean fittings and tubing.
method, refer to Terminology D1129.
Contaminants from the atmosphere are therefore prevented
3.2 Definitions of Terms Specific to This Standard:
from entering the sample. General information on the test
3.2.1 aerosol, n—any solid or liquid particles, with a
methodandaliteraturereviewonthecontinuousmeasurement
2 nominal size range from 10 nm to 100 µm, suspended in a gas
of RAE has been published.
(usually air).
1.3 The values stated in SI units are to be regarded as the
3.2.2 colloidal suspension, n— any material in suspension
standard. The values given in parentheses are for information
(for example, silica) with a nominal particle size less than 100
only.
nm.
1.4 This standard does not purport to address all of the
3.2.3 condensation nucleus counter (CNC), n—instrument
safety concerns, if any, associated with its use. It is the
for detecting very small aerosol particles in a size range from
responsibility of the user of this standard to establish appro-
approximately 10 nm to 2 to 3 µm. The CNC cannot differen-
priate safety and health practices and determine the applica-
tiate between particles of varying size within this size range; it
bility of regulatory limitations prior to use.Forspecifichazards
reports the number of particles with a size greater than that
statements, see Section 8.
defined by its detection efficiency curve. Detection is indepen-
2. Referenced Documents dent of particle composition.
3
3.2.4 detection effıciency, n— in this test method, detection
2.1 ASTM Standards:
efficiencyrepresentsacurverelatingparticlesizetoacounter’s
D1129 Terminology Relating to Water
ability to detect that size.
D1193 Specification for Reagent Water
3.2.5 diffusion screen, n—a fine mesh screen used to filter
D2777 Practice for Determination of Precision and Bias of
residue particles of a particular size.
3.2.6 high-purity water, n—within the context of this test
method, high-purity water is defined as water containing
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This test method is under the jurisdiction ofASTM Committee D19 on Water
residue after evaporation in the range from 0.1 µg/L to 20
and is the direct responsibility of Subcommittee D19.03 on Sampling of Water and
Water-Formed Deposits,Analysis of Water for Power Generation and Process Use,
mg/L.
On-Line Water Analysis, and Suveillance of Water.
3.2.7 polydisperse, adj—a size population, in this case of
Current edition approved Sept. 15, 1994. Published November 1994.
2 aerosol particles, composed of many different sizes; the oppo-
Blackford, D. B., and Kerrick, T. A., Proceeding of Microcontamination ’91,
site of monodisperse, a distribution of just one size.
San Jose, CA, 1991, pp. 39–51. Published by Canon Communications Inc., 3340
Ocean Park Blvd., Suite 1000, Santa Monica, CA 90405.
3.2.8 realtime, n—the time that an event is occurring plus
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the response time; in this case, the response time is 3 to 5 min.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Therefore,contaminationisrecorded3to5minafteritoccurs.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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