ASTM D5543-09
(Test Method)Standard Test Methods for Low-Level Dissolved Oxygen in Water
Standard Test Methods for Low-Level Dissolved Oxygen in Water
SIGNIFICANCE AND USE
Dissolved oxygen is detrimental in certain boiler and steam cycles because it may accelerate corrosion. Concentrations above 10 μg/L are unacceptable in many high-pressure boiler systems. The efficiency of dissolved oxygen removal from boiler feedwater by chemical or mechanical means, or both, is determined by measuring the concentration before and after the process. The measurement is also made to check for air leakage into the boiler system.
The oxygen treatment method for boiler corrosion reduction requires injection of oxygen into the boiler feedwater. The resulting oxygen level is monitored for control purposes.
SCOPE
1.1 This test method covers the determination of low-level (100μ g/L) dissolved oxygen in thermal-cycle steam condensate, deaerated boiler feedwater, boiler water, and deaerated deionized water. The following test method is included:
Range, μg/LSections Color Comparator Test
Method Using Self-Filling Glass
Ampoules0 to 100 8 to 17
1.2 This test method may be applicable to electronic-grade, pharmaceutical-grade, and other high-purity waters, although these were not addressed in the collaborative study.
1.3 This test method is a colorimetric procedure applicable to dissolved oxygen in water in the range from 0 to 100 μg/L.
1.4 It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.
1.5 The values stated in SI units are to be regarded as the standard.
1.6 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.
8.1 This test method covers the rapid, routine determination of dissolved oxygen in steam condensate, deaerated boiler feedwater, and deaerated deionized water. Color comparators allow the estimation of concentrations ranging from 0 to 100 μg/L (ppb) oxygen.
8.2 This test method was tested in steam condensate, deaerated boiler feedwater, and deaerated deionized water. It is the user's responsibility to ensure the validity of the test method for waters of untested matrices.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5543 − 09
StandardTest Method for
1
Low-Level Dissolved Oxygen in Water
This standard is issued under the fixed designation D5543; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope D3370 Practices for Sampling Water from Closed Conduits
1.1 This test method covers the determination of low-level
3. Terminology
(<100µ g/L) dissolved oxygen in thermal-cycle steam
3.1 Definitions: For definitions of terms used in these test
condensate, deaerated boiler feedwater, boiler water, and
methods, refer to Terminology D1129.
deaerated deionized water. The following test method is
included:
4. Significance and Use
Range, µg/L Sections
4.1 Dissolved oxygen is detrimental in certain boiler and
Color Comparator Test 0to100 8 to 17
Method Using Self-Filling Glass
steam cycles because it may accelerate corrosion. Concentra-
Ampoules
tions above 10 µg/L are unacceptable in many high-pressure
1.2 This test method may be applicable to electronic-grade,
boiler systems. The efficiency of dissolved oxygen removal
pharmaceutical-grade, and other high-purity waters, although
from boiler feedwater by chemical or mechanical means, or
these were not addressed in the collaborative study.
both, is determined by measuring the concentration before and
after the process. The measurement is also made to check for
1.3 This test method is a colorimetric procedure applicable
air leakage into the boiler system.
to dissolved oxygen in water in the range from 0 to 100 µg/L.
4.2 The oxygen treatment method for boiler corrosion
1.4 It is the user’s responsibility to ensure the validity of
reduction requires injection of oxygen into the boiler feedwa-
these test methods for waters of untested matrices.
ter. The resulting oxygen level is monitored for control
1.5 The values stated in SI units are to be regarded as the
purposes.
standard.
5. Reagents
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5.1 This test method does not require the preparation of any
responsibility of the user of this standard to establish appro-
reagents.All the necessary analytical reagents are provided by
priate safety and health practices and determine the applica-
the manufacturer in sealed ampoules.
bility of regulatory limitations prior to use.
5.2 Purity of Water—Reference to water shall mean water
that meets or exceeds the quantitative specifications forType II
2. Referenced Documents
reagent water of Specification D1193, Section 1.1.
2
2.1 ASTM Standards:
D1066 Practice for Sampling Steam
6. Precautions
D1129 Terminology Relating to Water
6.1 Users must exercise caution by using finger cots, in
D1193 Specification for Reagent Water
accordance with the manufacturer’s instructions, when han-
D2777 Practice for Determination of Precision and Bias of
dling the mixing of sample and reagent in the glass ampoules.
Applicable Test Methods of Committee D19 on Water
7. Sampling
7.1 Sampling is the most critical part of any dissolved
1
These test methods are under the jurisdiction of ASTM Committee D19 on
oxygen test. The sample stream must be completely leak-free,
Water and are the direct responsibility of Subcommittee D19.03 on Sampling Water
since even the smallest leak can elevate the oxygen level in the
and Water-Formed Deposits, Analysis of Water for Power Generation and Process
Use, On-Line Water Analysis, and Surveillance of Water.
sample and cause large errors in the results. New or intermit-
Current edition approved Oct. 1, 2009. Published October 2009. Originally
tentlyusedsamplingsystemsmustbepurgedforaminimumof
approved in 1994. Last previous edition approved in 2005 as D5543 – 94 (2005).
4 h. Sample streams that are used routinely may require only a
DOI: 10.1520/D5543-09.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or few minutes of purging.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.2 Collect the samples in accordance with Practices D1066
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. and D3370.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5543 − 09
7.3 With water under pressure, connect a tube of inert interference of 10 µg/L dissolved oxygen; and (3) added
material to the inlet and extend the tube outlet to the bottom of hydrogen peroxide in a concentration range from 0.5 to 650
the sample bottle or tube. Use stainless steel, Type 304
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D 5543–94 (Reapproved 2005)
Standard Test Methods for Designation:D5543–09
Standard Test Method for
1
Low-Level Dissolved Oxygen in Water
This standard is issued under the fixed designation D 5543; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1These1.1 This test methods covers the determination of low-level (<100µ g/L) dissolved oxygen in thermal-cycle steam
condensate, deaerated boiler feedwater, boiler water, and deaerated deionized water. The following test methods aremethod is
included:
Range, µg/L Sections
Test Method A—Color Comparator Test 0to100 8to17
Method Using Self-Filling Glass
Ampoules
Color Comparator Test 0to100 8to17
Method Using Self-Filling Glass
Ampoules
Test Method B—Instrument Test Method 0to100 18 to 26
Using Self-Filling Glass Ampoules
Test Method B—Instrument Test Method 0to100 18 to 26 8 to
Using Self-Filling Glass Ampoules 17
1.2Thesetestmethodsmaybeapplicabletoelectronic-grade,pharmaceutical-grade,andotherhigh-puritywaters,althoughthese
were not addressed in the collaborative study.
1.3Test Method A is a colorimetric procedure applicable to dissolved oxygen in water in the range from 0 to 100 µg/L.
1.4Test Method B is an instrumented colorimetric procedure applicable to dissolved oxygen in water in the range from 0 to 100
µg/L.
1.5
1.2 This test method may be applicable to electronic-grade, pharmaceutical-grade, and other high-purity waters, although these
were not addressed in the collaborative study.
1.3 This test method is a colorimetric procedure applicable to dissolved oxygen in water in the range from 0 to 100 µg/L.
1.4 It is the user’s responsibility to ensure the validity of these test methods for waters of untested matrices.
1.6The1.5 The values stated in SI units are to be regarded as the standard.
1.71.6 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
2.1 ASTM Standards:
D 1066 Practice for Sampling Steam
D 1129 Terminology Relating to Water D1192Specification for Equipment for Sampling Water and Steam in Closed Conduits
D 1193 Specification for Reagent Water
D 2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D 3370 Practices for Sampling Water from Closed Conduits
1
These test methods are under the jurisdiction of ASTM Committee D19 on Water and are the direct responsibility of Subcommittee D19.03 on Sampling of Water and
Water-Formed Deposits, Analysis of Water for Power Generation and Process Use, On-Line Water Analysis, and Surveillance of Water.
Current edition approved Jan.Oct. 1, 2005.2009. Published January 2005.
´1
October 2009. Originally approved in 1994. Last previous edition approved in 19992005 as D 5543 – 94 (1999) .(2005).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM 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.
1
---------------------- Page: 1 ----------------------
D5543–09
3. Terminology
3.1 Definitions: —ForFor definitions of terms used in these test methods, refer to Terminology D 1129.
4. Significance and Use
4.1 Dissolved oxygen is detrimental in certain boiler and steam cycles because it may accelerate corrosion. Concentrations
above 10 µg/L are unacceptable in many high-pressure boiler systems. The efficiency of dissolved oxygen removal from boiler
feedwater by chemical or mechanical means, or both, is determined by measuring the concentration before and after the process.
The measurement is also made to check for air leakage into the boiler system.
4.2 The oxygen treatment method for boiler corrosion reduction requires injection of oxygen into the boiler feedwater. The
resulting oxygen level is monitored for control purposes.
5. Reagents
5.1 This test method does not require the preparation of any reagents.All the necessary analytical reagents are provided by the
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.