ASTM D5085-02(2013)
(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
5.1 This test method is useful for the determination of the anions: chloride, nitrate, and sulfate in atmospheric wet deposition.
5.2 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)2. 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).
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.
General Information
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5085 − 02 (Reapproved 2013)
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
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1.1 This test method is applicable to the determination of 2.1 ASTM Standards:
chloride, nitrate, and sulfate in atmospheric wet deposition D883Terminology Relating to Plastics
(rain, snow, sleet, and hail) by chemically suppressed ion D1129Terminology Relating to Water
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chromatography (1). For additional applications refer to Test D1193Specification for Reagent Water
Method D4327. D1356Terminology Relating to Sampling and Analysis of
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
Range of Range
D4210Practice for Intralaboratory Quality Control Proce-
Method Tested
MDL (mg/L) (2) (mg/L) (mg/L) dures and a Discussion on Reporting Low-Level Data
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Chloride 0.03 0.09–2.0 0.15–1.36
(Withdrawn 2002)
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
1.3 The method detection limit (MDL) is based on single
D5012Guide for Preparation of Materials Used for the
operator precision (2) and may be higher or lower for other
Collection and Preservation of Atmospheric Wet Deposi-
operators and laboratories. The precision and bias data pre-
tion
sented are insufficient to justify use at this low level, however,
E694Specification for Laboratory Glass Volumetric Appa-
many workers have found that this test method is reliable at
ratus
lower levels than those that were tested.
IEEE/ASTM SI-10Standard for Use of the International
1.4 This standard does not purport to address all of the
System of Units (SI): The Modern Metric System
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety and health practices and determine the applica-
3.1 Definitions—For definitions of terms used in this test
bility of regulatory limitations prior to use. Specific precau-
method, refer to Terminologies D883, D1129, and D1356 and
tionary statements are given in Section 9.
Test Method D4327 and Practice IEEE/ASTM SI-10.
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4. Summary of Test Method
ization established in the Decision on Principles for the
4.1 Ionchromatographycombinesconductometricdetection
Development of International Standards, Guides and Recom-
with the separation capabilities of ion exchange resins. (1) A
mendations issued by the World Trade Organization Technical
filtered aliquot of the sample, ranging in size from 50 to 250
Barriers to Trade (TBT) Committee.
µL, is pumped through an ion exchange column where the
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
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Atmospheres and Source Emissions. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2013. Published October 2013. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1990. Last previous edition approved in 2008 as D5085–02 (2008). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/D5085-02R13. the ASTM website.
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2
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
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D5085 − 02 (2013)
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.
...
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