ASTM D5085-02(2008)
(Test Method)Standard Test Method for Determination of Chloride, Nitrate, and Sulfate in Atmospheric Wet Deposition by Chemically Suppressed Ion Chromatography
Standard Test Method for Determination of Chloride, Nitrate, and Sulfate in Atmospheric Wet Deposition by Chemically Suppressed Ion Chromatography
SIGNIFICANCE AND USE
This test method is useful for the determination of the anions: chloride, nitrate, and sulfate in atmospheric wet deposition.
Fig. X1.1 in the appendix represents cumulative frequency percentile concentration plots of chloride, nitrate, and sulfate obtained from analyses of over 5000 wet deposition samples. These data may be used as an aid in the selection of appropriate calibration solutions. (3)
SCOPE
1.1 This test method is applicable to the determination of chloride, nitrate, and sulfate in atmospheric wet deposition (rain, snow, sleet, and hail) by chemically suppressed ion chromatography (1) . For additional applications refer to Test Method D 4327.
1.2 The concentration ranges for this test method are listed below. The range tested was confirmed using the interlaboratory collaborative test (see Table 1 for statistical summary of the collaborative test).
MDL (mg/L) (2)Range of
Method
(mg/L)Range
Tested
(mg/L) Chloride0.030.09–2.00.15–1.36 Nitrate0.03 0.09–5.0 0.15–4.92 Sulfate 0.03 0.09–8.0 0.15–6.52
1.3 The method detection limit (MDL) is based on single operator precision (2) and may be higher or lower for other operators and laboratories. The precision and bias data presented are insufficient to justify use at this low level, however, many workers have found that this test method is reliable at lower levels than those that were tested.
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. Specific precautionary statements are given in Section 9.
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Designation: D5085 − 02(Reapproved 2008)
Standard Test Method for
Determination of Chloride, Nitrate, and Sulfate in
Atmospheric Wet Deposition by Chemically Suppressed Ion
1
Chromatography
This standard is issued under the fixed designation D5085; 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
3
2.1 ASTM Standards:
1.1 This test method is applicable to the determination of
D883Terminology Relating to Plastics
chloride, nitrate, and sulfate in atmospheric wet deposition
D1129Terminology Relating to Water
(rain, snow, sleet, and hail) by chemically suppressed ion
2
D1193Specification for Reagent Water
chromatography (1) . For additional applications refer to Test
D1356Terminology Relating to Sampling and Analysis of
Method D4327.
Atmospheres
1.2 The concentration ranges for this test method are listed
D2777Practice for Determination of Precision and Bias of
below. The range tested was confirmed using the interlabora-
Applicable Test Methods of Committee D19 on Water
tory collaborative test (see Table 1 for statistical summary of
D3670Guide for Determination of Precision and Bias of
the collaborative test).
Methods of Committee D22
D4210Practice for Intralaboratory Quality Control Proce-
Range of Range
Method Tested
dures and a Discussion on Reporting Low-Level Data
MDL (mg/L) (2) (mg/L) (mg/L)
4
(Withdrawn 2002)
Chloride 0.03 0.09–2.0 0.15–1.36
Nitrate 0.03 0.09–5.0 0.15–4.92 D4327Test Method forAnions in Water by Suppressed Ion
Sulfate 0.03 0.09–8.0 0.15–6.52
Chromatography
D5012Guide for Preparation of Materials Used for the
1.3 The method detection limit (MDL) is based on single
Collection and Preservation of Atmospheric Wet Deposi-
operator precision (2) and may be higher or lower for other
tion
operators and laboratories. The precision and bias data pre-
IEEE/ASTM SI-10Standard for Use of the International
sented are insufficient to justify use at this low level, however,
System of Units (SI): The Modern Metric System
many workers have found that this test method is reliable at
E694Specification for Laboratory Glass Volumetric Appa-
lower levels than those that were tested.
ratus
1.4 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3.1 Definitions—For definitions of terms used in this test
priate safety and health practices and determine the applica-
method, refer to Terminologies D883, D1129, and D1356 and
bility of regulatory limitations prior to use. Specific precau-
Test Method D4327 and Practice IEEE/ASTM SI-10.
tionary statements are given in Section 9.
4. Summary of Test Method
4.1 Ionchromatographycombinesconductometricdetection
with the separation capabilities of ion exchange resins. (1) A
1
This test method is under the jurisdiction of ASTM Committee D22 on Air
Quality and is the direct responsibility of Subcommittee D22.03 on Ambient
3
Atmospheres and Source Emissions. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Aug. 1, 2008. Published September 2008. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1990. Last previous edition approved in 2002 as D5085–02. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D5085-02R08. the ASTM website.
2 4
The boldface numbers in parentheses refer to references at the end of this test The last approved version of this historical standard is referenced on
method. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D5085 − 02 (2008)
TABLE 1 Precision and Bias for Chloride, Nitrate, and Sulfate Determined from the Synthetic Atmospheric Wet Deposition Samples
Used in the Interlaboratory Comparison Study
Precision mg/L
Amount Mean
Bias, Significant
A 95 % 95 %
Analyte Added, Recovery, n
B
C D
mg/L Bias
S Reproducibility S Repeatability
t o
mg/L mg/L
Limit Limit
Chloride 0.15 0.157 36 0.0535 0.150 0.0116 0.0325 0.007 no
0.30 0.293 35 0.0554 0.155 0.0291 0.0815 −0.007 no
0.68 0.652 36 0.0549 0.154 0.0237 0.0664 −0.028 biased low
1.36 1.368 36 0.1 0.28 0.0431 0.121 0.008 no
Nitrate 0.15 0.138 24 0.0362 0.101 0.0289 0.0809 −0.012 no
1.08 1.077 24 0.0495 0.139 0.0421 0.118 −0.003 no
2.44 2.486 22 0.0197 0.0552 0.0183 0.0512 0.046 biased high
4.92 4.999 24 0.126 0.353 0.075 0.21 0.079 biased high
Sulfate 0.15 0.172 36 0.
...
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:D5085–95 Designation:D5085–02 (Reapproved 2008)
Standard Test Method for
Determination of Chloride, Nitrate, and Sulfate in
Atmospheric Wet Deposition by Chemically Suppressed Ion
1
Chromatography
This standard is issued under the fixed designation D5085; 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
1.1 Thistestmethodisapplicabletothedeterminationofchloride,nitrate,andsulfateinatmosphericwetdeposition(rain,snow,
2
sleet, and hail) by chemically suppressed ion chromatography (1) using a two pen variable setting recorder and integrator. For
additional applications refer to Test Method D4327. For additional applications refer to Test Method D4327.
1.2 The concentration ranges for this test method are listed below. The range tested was confirmed using the interlaboratory
collaborative test (see Table 1 for statistical summary of the collaborative test).
Range of Range
Method Tested
MDL (mg/L) (2) (mg/L) (mg/L)
Chloride 0.03 0.09–2.0 0.15–1.36
Nitrate 0.03 0.09–5.0 0.15–4.92
Sulfate 0.03 0.09–8.0 0.15–6.52
1.3 The method detection limit (MDL) is based on single operator precision (2) and may be higher or lower for other operators
andlaboratories.Theprecisionandbiasdatapresentedareinsufficienttojustifyuseatthislowlevel,however,manyworkershave
found that this test method is reliable at lower levels than those that were tested.
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. Specific precautionary statements are given in Section 9.
2. Referenced Documents
3
2.1 ASTM Standards:
D883 Terminology Relating to Plastics
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D1356 Terminology Relating to Sampling and Analysis of Atmospheres
D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D-19D19 on Water
5
D3670 Guide for Determination of Precision and Bias of Methods of Committee D-22 D22
D4210 Practice for Interalaboratory Quality Control Procedures and a Discussion on Reporting Low-Level Data
D4327 Test Method for Anions in Water by Chemically Suppressed Ion Chromatography
D5012 Guide for Preparation of Materials Used for the Collection and Preservation of Atmospheric Wet Deposition
E380Practice for Use of the International System of Units (SI) (the Modernized Metric System) IEEE/ASTM SI-10 Standard
for Use of the International
System of Units (SI): The
Modern Metric System
E694 Specification for Laboratory Glass Volumetric Apparatus
1
This test method is under the jurisdiction ofASTM Committee D-22 on Sampling andAnalysis ofAtmospheres and is the direct responsibility of Subcommittee D22.06
on Atmospheric Deposition.
Current edition approved Jan. 15, 1995. Published March 1995. Originally published as D5085–90. Last previous edition D5085–90.
1
This test method is under the jurisdiction ofASTM Committee D22 onAir Quality and is the direct responsibility of Subcommittee D22.03 onAmbientAtmospheres
and Source Emissions.
Current edition approved Aug. 1, 2008. Published September 2008. Originally approved in 1990. Last previous edition approved in 2002 as D5085–02.
2
The boldface numbers in parentheses refer to references at the end of this test method.
3
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
, Vol 08.01.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
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D5085–02 (2008)
TABLE 1 Precision and Bias for Chloride, Nitrate, and Sulfate Determined from the Synthetic Atmospheric Wet Deposition Samples
Used in the Interlaboratory Comparison Study
Precision mg/L
Amount Mean
Bias, Significant
A 95 % 95 %
Analyte Added, Recovery, n
B
C D
mg/L Bias
S Reproducibility S Repeatability
t o
mg/L mg/L
Limit Limit
Chloride 0.15 0.157 36 0.0535 0.150 0.0116 0.0325 0.007 no
0.30 0.293 35 0.0554 0.155 0.0291 0.0815 −0.007 no
0.68 0.652 36
...
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