ASTM D1292-10
(Test Method)Standard Test Method for Odor in Water
Standard Test Method for Odor in Water
SIGNIFICANCE AND USE
The odor of water is a subjective property which is recognized as having a significant effect on its quality. This test is intended to provide a reproducible test method for determining the intensity of odor in waters for comparative or control purposes.
The test may be useful in checking the quality of raw or treated waters, determining the effectiveness of treatment procedures, or in tracing sources of contamination or leaks in industrial processes.
The results of the test are very dependent upon the observers, since the sensitivity of individuals to odor is highly variable and changes from day to day. Careful standardization of the conditions is essential.
SCOPE
1.1 This test method covers the determination of the odor (that is, the property that affects the sense of smell) of water. A suggested system for classifying odors is given as Annex A1. The test method is applicable to the determination of odor intensity in terms of odor intensity index or threshold odor number.
1.2 Effluents may carry a myriad of compounds, difficult to measure individually, which contribute to odor problems. Combinations of compounds can cause an odor intensity or develop a characteristic that cannot be anticipated from odors of the individual substances.
1.3 Because of the variation in human sensitivity, high precision in determining odor intensity is not possible. There will not always be agreement on odor characteristics by various testers. Odor analysis provides the tool to measure variation in odor intensity at a given sampling point. The degree of variation may indicate the magnitude or importance of an odor problem. Determining the cause of the variation or the source of the objectionable characteristic may define the odor problem better than analysis for individual compounds.
1.4 The values stated in SI or inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 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 hazard statements, see the warning statement under 10.1.
General Information
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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: D1292 − 10
StandardTest Method for
1
Odor in Water
This standard is issued under the fixed designation D1292; 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 2. Referenced Documents
2 3
1.1 This test method covers the determination of the odor 2.1 ASTM Standards:
(that is, the property that affects the sense of smell) of water.A D1066Practice for Sampling Steam
suggested system for classifying odors is given as Annex A1. D1129Terminology Relating to Water
The test method is applicable to the determination of odor D1193Specification for Reagent Water
intensity in terms of odor intensity index or threshold odor D2777Practice for Determination of Precision and Bias of
number. Applicable Test Methods of Committee D19 on Water
D3370Practices for Sampling Water from Closed Conduits
1.2 Effluents may carry a myriad of compounds, difficult to
measure individually, which contribute to odor problems.
3. Terminology
Combinations of compounds can cause an odor intensity or
3.1 Definitions:
develop a characteristic that cannot be anticipated from odors
3.1.1 The terms odor-intensity index and odor threshold
of the individual substances.
number in this test method are defined in accordance with
1.3 Because of the variation in human sensitivity, high
Terminology D1129 as follows:
precision in determining odor intensity is not possible. There
3.1.2 odor-intensity index, n—the number of times the
willnotalwaysbeagreementonodorcharacteristicsbyvarious
concentration of the original sample is halved by addition of
testers. Odor analysis provides the tool to measure variation in
odor-free water to obtain the least definitely perceptible odor.
odor intensity at a given sampling point. The degree of
3.1.3 odor threshold number, n—the greatest dilution of the
variation may indicate the magnitude or importance of an odor
sample with odor-free water to yield the least definitely
problem. Determining the cause of the variation or the source
perceptible odor.
oftheobjectionablecharacteristicmaydefinetheodorproblem
better than analysis for individual compounds. 3.1.4 For definitions of other terms used in this test method,
refer to Terminology D1129.
1.4 The values stated in SI or inch-pound units are to be
regarded as the standard. The values given in parentheses are
4. Summary of Test Method
for information only.
4.1 A sample of water is diluted with odor-free water until
1.5 This standard does not purport to address all of the
a dilution is obtained that has the least definitely perceptible
safety concerns, if any, associated with its use. It is the
odor. The test is made by two or more testers. One makes
responsibility of the user of this standard to establish appro-
dilutions and the others determine odor intensity. Samples are
priate safety and health practices and determine the applica-
tested in generally increasing concentration of odorant, al-
bility of regulatory limitations prior to use. For specific hazard
though not in consecutive sequence of dilutions, until the odor
statements, see the warning statement under 10.1.
is perceived. The persons making the test select the odorous
sample from among three flasks, two of which contain odor-
1
free water. Odor is measured without regard to the presence of
This test method is under the jurisdiction of ASTM Committee D19 on Water
and is the direct responsibility of Subcommittee D19.05 on Inorganic Constituents
suspended matter or immiscible substances in the sample.
in Water.
Current edition approved Nov. 1, 2010. Published November 2010. Originally
3
approved in 1953. Last previous edition approved in 2005 as D1292–05. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/D1292-10. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
This test method is based on a procedure proposed by the Dow Chemical Co. Standards volume information, refer to the standard’s Document Summary page on
in a private communication. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D1292 − 10
Cognizance is taken of the fact that there is no absolute odor dilutions; in no case shall they make the dilutions. Dilutions
value and that the test is to be used for comparison only. The shall be tested by presenting samples ranging from lower to
test is carried out at 40°C. higher concentrations but they must not be presented in
sequence. Insertion of a set of blanks or lower concentrations
5. Sig
...
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:D1292–05 Designation: D1292 – 10
Standard Test Method for
1
Odor in Water
This standard is issued under the fixed designation D1292; 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
2
1.1 This test method covers the determination of the odor (that is, the property that affects the sense of smell) of water. A
suggested system for classifying odors is given asAnnexA1. The test method is applicable to the determination of odor intensity
in terms of odor intensity index or threshold odor number.
1.2 Effluents may carry a myriad of compounds, difficult to measure individually, which contribute to odor problems.
Combinations of compounds can cause an odor intensity or develop a characteristic that cannot be anticipated from odors of the
individual substances.
1.3 Because of the variation in human sensitivity, high precision in determining odor intensity is not possible. There will not
always be agreement on odor characteristics by various testers. Odor analysis provides the tool to measure variation in odor
intensity at a given sampling point. The degree of variation may indicate the magnitude or importance of an odor problem.
Determining the cause of the variation or the source of the objectionable characteristic may define the odor problem better than
analysis for individual compounds.
1.4
1.4 The values stated in SI or inch-pound units are to be regarded as the standard. The values given in parentheses are for
information only.
1.5 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.Forspecifichazardstatements,seeNote1underForspecifichazardstatements,seethewarningstatement
under 10.1.
2. Referenced Documents
3
2.1 ASTM Standards:
D1066 Practice for Sampling Steam
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D3370 Practices for Sampling Water from Closed Conduits
3. Terminology
3.1 Definitions:
3.1.1 Theterms odor-intensity indexand odor threshold numberinthistestmethodaredefinedinaccordancewithTerminology
D1129 as follows:
3.1.2 odor-intensity indexodor-intensity index, n—the number of times the concentration of the original sample is halved by
addition of odor-free water to obtain the least definitely perceptible odor.
3.1.3 odor threshold numberodorthresholdnumber, n—thegreatestdilutionofthesamplewithodor-freewatertoyieldtheleast
definitely perceptible odor.
3.1.4 For definitions of other terms used in this test method, refer to Terminology D1129.
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD19onWaterandisthedirectresponsibilityofSubcommitteeD19.05onInorganicConstituentsinWater.
Current edition approved Feb. 1, 2005. Published February 2005. Originally approved in 1953. Last previous edition approved in 1999 as D1292–86 (1999). DOI:
10.1520/D1292-05.
Current edition approved Nov. 1, 2010. Published November 2010. Originally approved in 1953. Last previous edition approved in 2005 as D1292–05. DOI:
10.1520/D1292-10.
2
This test method is based on a procedure proposed by the Dow Chemical Co. in a private communication.
3
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@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 ----------------------
D1292 – 10
4. Summary of Test Method
4.1 Asample of water is diluted with odor-free water until a dilution is obtained that has the least definitely perceptible odor.
The test is made by two or more testers. One makes dilutions and the others determine odor intensity. Samples are tested in
generally increasing concentration of odorant, although not in consecutive sequence of dilutions, until the odor is perceived. The
personsmakingthetestselecttheodoroussamplefromamongthreeflasks,twoofwhichcontainodor-freewater.Odorismeasured
without regard t
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