ASTM D5012-01(2008)
(Guide)Standard Guide for Preparation of Materials Used for the Collection and Preservation of Atmospheric Wet Deposition
Standard Guide for Preparation of Materials Used for the Collection and Preservation of Atmospheric Wet Deposition
SIGNIFICANCE AND USE
Some chemical constituents of AWD are not stable and must be preserved before chemical analysis. Without sample preservation, it is possible that analytes can be lost through decomposition or sorption to the storage bottles.
Contamination of AWD samples can occur during both sample preservation and sample storage. Proper selection and cleaning of sampling containers are required to reduce the possibility of contamination of AWD samples.
The natural sponge and talc-free plastic gloves used in the following procedures should be recognized as potential sources of contamination. Individual experience should be used to select products that minimize contamination.
SCOPE
1.1 This guide presents recommendations for the cleaning of plastic or glass materials used for collection of atmospheric wet deposition (AWD). This guide also presents recommendations for the preservation of samples collected for chemical analysis.
1.2 The materials used to collect AWD for the analysis of its inorganic constituents and trace elements should be plastic. High density polyethylene (HDPE) is most widely used and is acceptable for most samples including samples for the determination of the anions of acetic, citric, and formic acids. Borosilicate glass is a collection alternative for the determination of the anions from acetic, citric, and formic acid; it is recommended for samples for the determination of other organic compounds.
1.3 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.
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Designation: D5012 − 01(Reapproved 2008)
Standard Guide for
Preparation of Materials Used for the Collection and
1
Preservation of Atmospheric Wet Deposition
This standard is issued under the fixed designation D5012; 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 D1695 Terminology of Cellulose and Cellulose Derivatives
D2914 Test Methods for Sulfur Dioxide Content of the
1.1 This guide presents recommendations for the cleaning
Atmosphere (West-Gaeke Method)
of plastic or glass materials used for collection of atmospheric
D4453 Practice for Handling of High Purity Water Samples
wet deposition (AWD). This guide also presents recommenda-
tions for the preservation of samples collected for chemical
3. Terminology
analysis.
3.1 Definitions:
1.2 ThematerialsusedtocollectAWDfortheanalysisofits
3.1.1 For definitions of terms used in this guide, refer to
inorganic constituents and trace elements should be plastic.
Terminology D1129.
High density polyethylene (HDPE) is most widely used and is
3.1.2 For definition of plastic refer to Terminology D1695
acceptable for most samples including samples for the deter-
and Terminology D883.
mination of the anions of acetic, citric, and formic acids.
3.1.3 For definition of AWD (precipitation, meteorologi-
Borosilicate glass is a collection alternative for the determina-
cal) refer to Terminology D1356.
tion of the anions from acetic, citric, and formic acid; it is
recommended for samples for the determination of other
4. Significance and Use
organic compounds.
4.1 Some chemical constituents of AWD are not stable and
1.3 This standard does not purport to address all of the
must be preserved before chemical analysis. Without sample
safety concerns, if any, associated with its use. It is the
preservation, it is possible that analytes can be lost through
responsibility of the user of this standard to establish appro-
decomposition or sorption to the storage bottles.
priate safety and health practices and determine the applica-
4.2 Contamination of AWD samples can occur during both
bility of regulatory limitations prior to use.
sample preservation and sample storage. Proper selection and
cleaning of sampling containers are required to reduce the
2. Referenced Documents
possibility of contamination of AWD samples.
2
2.1 ASTM Standards:
4.3 The natural sponge and talc-free plastic gloves used in
D883 Terminology Relating to Plastics
the following procedures should be recognized as potential
D1125 Test Methods for Electrical Conductivity and Resis-
sources of contamination. Individual experience should be
tivity of Water
used to select products that minimize contamination.
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
5. Apparatus
D1356 Terminology Relating to Sampling and Analysis of
5.1 Instruments shall be selected in accordance with an
Atmospheres
applicable test method given in Test Methods D1125.
1
This guide is under the jurisdiction of ASTM Committee D22 on Air Quality 5.2 The conductivity cell shall be pipet or dip type with a
and is the direct responsibility of Subcommittee D22.03 on Ambient Atmospheres
cell constant (K) of 0.1.
and Source Emissions.
Current edition approved April 1, 2008. Published July 2008. Originally
6. Reagents and Materials
approved in 1989. Last previous edition approved in 2001 as D5012 - 01. DOI:
10.1520/D5012-01R08.
6.1 Purity of Reagents—Reagent grade acids and other
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
chemicals shall be used to reduce the risk of contaminating the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
AWD samples. Unless otherwise indicated, it is intended that
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. all reagents conform to the specifications of the Committee on
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5012 − 01 (2008)
TABLE 1 Preservation of AWD Samples Collected for Inorganic Cation and Anion Determinations
Preservation Technique Species Determined Remarks Reference
No preservation All inorganic cations and anions Rapid analysis is required after collection because ion concentrations may (10-14)
change in samples. Ammonium, nitrate, and ortho-phosphate concentrations
may be reduced in samples that are biologically active. Cation and trace metal
concentrations may be reduced by sorption onto container surfaces.
Refrigerate 4°C All inorganic c
...
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.
An American National Standard Designation: D 5012 – 01 (Reapproved 2008)
e1
Designation:D5012–89(Reapproved 1994)
Standard Guide for
Preparation of Materials Used for the Collection and
1
Preservation of Atmospheric Wet Deposition
This standard is issued under the fixed designation D 5012; 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
e NOTE—Section 9 was editorially added in April 1994.
1. Scope
1.1 This guide presents recommendations for the cleaning of plastic or glass materials used for collection of atmospheric wet
deposition (AWD). This guide also presents recommendations for the preservation of samples collected for chemical analysis.
1.2 The materials used to collectAWD for the analysis of its inorganic constituents and trace elements should be plastic. High
density polyethylene (HDPE) is most widely used and is acceptable for allmost samples including samples for the determination
oftheanionsofacetic,citric,andformicacids.Borosilicateglassisacollectionalternativeforthedeterminationoftheanionsfrom
acetic, citric, and formic acid; it is recommended for samples for the determination of other organic compounds.
1.3 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 883 Terminology Relating to Plastics
D 1125 Test Methods for Electrical Conductivity and Resistivity of Water
D 1129 Terminology Relating to Water
D 1193 Specification for Reagent Water
D 1356 Terminology Relating to Sampling and Analysis of Atmospheres
D 1695 TerminologyofCelluloseandCelluloseDerivativesD2914TestMethodsforSulfurDioxideContentoftheAtmosphere
4
(West-Gaeke Method)
3
D4453Practice for Handling of Ultra-Pure Water Samples 2914 Test Methods for Sulfur Dioxide Content of theAtmosphere
(West-Gaeke Method)
D 4453 Practice for Handling of Ultra-Pure Water Samples
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this guide, refer to Terminology D 1129.
3.1.2 For definition of plastic refer to Terminology D 1695 and Terminology D 883.
3.1.3 For definition of AWD (precipitation, meteorological) refer to Terminology D 1356.
4. Significance and Use
4.1 Some chemical constituents of AWD are not stable and must be preserved before chemical analysis. Without sample
preservation, it is possible that analytes can be lost through decomposition or sorption to the storage bottles.
4.2 Contamination of AWD samples can occur during both sample preservation and sample storage. Proper selection and
cleaning of sampling containers are required to reduce the possibility of contamination of AWD samples.
1
This guide is under the jurisdiction of ASTM Committee D-22 on Sampling and Analysis of Atmospheres and is the direct responsibility of Subcommittee D22.06 on
Atmospheric Deposition.
Current edition approved Nov. 24, 1989. Published March 1990.
1
This guide is under the jurisdiction of ASTM Committee D22 on Air Quality and is the direct responsibility of Subcommittee D22.03 on Ambient Atmospheres and
Source Emissions.
Current edition approved April 1, 2008. Published July 2008. Originally approved in 1989. Last previous edition approved in 2001 as D 5012 - 01.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM 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
---------------------- Page: 1 ----------------------
D5012–01 (2008)
4.3 The natural sponge and talc-free plastic gloves used in the following procedures should be recognized as potential sources
of contamination. Individual experience should be used to select products that minimize contamination.
5. Apparatus
5.1 Instruments shall be selected in accordance with an applicable test method given in Test Methods D 1125.
5.2 The conductivity cell shall be pipet or dip type with a cell constant (K) of 0.1 .
TABLE 1 Preservation of AWD Samples Collected for
...
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