ASTM D4453-02
(Practice)Standard Practice for Handling of Ultra-Pure Water Samples
Standard Practice for Handling of Ultra-Pure Water Samples
SCOPE
1.1 This practice covers concepts for handling ultra-pure water samples needed for the measurement of ever-decreasing levels of specified impurities that are encountered in the operation of modern high-pressure boilers and turbines. The handling of blanks associated with the analysis of ultra-pure water samples is also covered by this practice. The techniques presented can help the investigator increase the accuracy of analyses performed.
1.2 This practice is applicable to water and steam samples from "zero solids treated" once-through or drum-type boilers, reactor coolant water, electronic grade water, or any other process water where analyte concentrations are in the low parts per billion (micrograms per litre) range.
1.3 This standard does not purport to address all of the safety problems, 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. Specific hazards statements are given in 5.2.3.5, 5.1, and 5.3.7.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
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Designation:D4453–02
Standard Practice for
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Handling of Ultra-Pure Water Samples
This standard is issued under the fixed designation D4453; 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 sample storage by leaching of improperly cleaned containers,
2 during sample transfer, and by handling with pipets, syringes,
1.1 This practice covers concepts for handling ultra-pure
etc., and during the actual analysis by contaminated reagents
water samples needed for the measurement of ever-decreasing
and sample cells and loop systems. It is also possible that trace
levels of specified impurities that are encountered in the
contaminants can be lost from samples by volatilization or
operation of modern high-pressure boilers and turbines. The
precipitation, by diffusion into the matrix of the container
handling of blanks associated with the analysis of ultra-pure
material,andby“platingout”onthewallsofsamplinglinesby
water samples is also covered by this practice. The techniques
flow phenomena.
presented can help the investigator increase the accuracy of
3.2 Strict adherence to a given procedure is necessary to
analyses performed.
achieve good results at trace levels of analysis because very
1.2 This practice is applicable to water and steam samples
small differences in procedure execution will affect precision
from “zero solids treated” once-through or drum-type boilers,
and the addition or loss of nanogram amounts of analyte may
reactor coolant water, electronic grade water, or any other
affect the accuracy of a determination.
processwaterwhereanalyteconcentrationsareinthelowparts
per billion (micrograms per litre) range.
4. Reagents and Materials
1.3 This standard does not purport to address all of the
4.1 Purity of Reagents—Reagent grade chemicals shall be
safety problems, if any, associated with its use. It is the
usedinalltests.Itisintendedthatallreagentsshallconformto
responsibility of the user of this standard to establish appro-
the specifications of the Committee onAnalytical Reagents of
priate safety and health practices and determine the applica-
theAmerican Chemical Society, where such specifications are
bility of regulatory limitations prior to use. Specific hazards
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available. Other grades may be used, provided it is first
statements are given in 5.2.3.5, 5.1, and 5.3.7.
ascertained that the reagent is of sufficiently high purity to
2. Referenced Documents permit its use without lessening the accuracy of the determi-
nation.
2.1 ASTM Standards:
3 4.2 Purity of Water— Reference to high-purity water shall
D1066 Practice for Sampling Steam
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be understood to mean water conforming to Specification
D1193 Specification for Reagent Water
D1193, Type I reagent water, post treated with an organic
3. Significance and Use
removal cartridge or demineralized water which has addition-
ally been polished using a cartridge water purification system
3.1 The determination of trace impurities (on the order of
with an organic removal cartridge and 0.2-µm final filter.
parts per billion) in ultra-pure water places extreme require-
4.3 Hydrochloric Acid (1 + 1)—Dilute concentrated hydro-
ments on all aspects of the analytical system. This is particu-
chloric acid with an equal quantity of high purity water.
larlytruewhenubiquitousspeciessuchassodiumandchloride
4.4 NitricAcid (1 + 1)—Diluteconcentratednitricacidwith
are of interest because they can potentially be introduced as
an equal quantity of high purity water.
contaminants at almost every step of an analytical procedure.
4.5 Nitric Acid, ultra-pure.
Contamination can occur during sample collection, during
4.6 Methanol.
4.7 n-hexane.
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This practice is under the jurisdiction ofASTM Committee D19 on Water and
is the direct responsibility of Subcommittee D19.03 on Sampling of Water and
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Water-Formed Deposits, Surveillance of Water, and Flow Measurement of Water. Reagent Chemicals, American Chemical Society Specifications, American
Current edition approved June 10, 2002. Published August 2002. Originally Chemical Society, Washington, DC. For suggestions on the testing of reagents not
published as D4453–85. Last previous edition D4453–91(1997). listed by the American Chemical Society, see Analar Standards for Laboratory
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This practice suggests the use of specific techniques. As new techniques are Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
developedorrequiredbylowerlimits,revisionofthispracticewilllikelybeneeded. and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
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Annual Book of ASTM Standards, Vol 11.01. MD.
Co
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