ASTM D5086-20

Standard Test Method for Determination of Calcium, Magnesium, Potassium, and Sodium in Atmospheric Wet Deposition by Flame Atomic Absorption Spectrophotometry

SIGNIFICANCE AND USE
5.1 This test method may be used for the determination of calcium, magnesium, potassium, and sodium in atmospheric wet deposition samples.  
5.2 Emphasis is placed on the easily contaminated quality of atmospheric wet deposition samples due to the low concentration levels of dissolved metals commonly present.
SCOPE
1.1 This test method is applicable to the determination of calcium, magnesium, potassium, and sodium in atmospheric wet deposition (rain, snow, sleet, and hail) by flame atomic absorption spectrophotometry (FAAS)  (1).2  
1.2 The concentration ranges are listed below. The range tested was confirmed using the interlaboratory collaborative test (see Table 1 for a statistical summary of the collaborative test).    
MDL
(mg/L) (2)  
Range of Method
(mg/L)  
Range Tested
(mg/L)  
Calcium  
0.009  
0.03–3.00  
0.168–2.939  
Magnesium  
0.003  
0.01–1.00  
0.039–0.682  
Potassium  
0.003  
0.01–1.00  
0.029–0.499  
Sodium  
0.003  
0.01–2.00  
0.105–1.84  
1.3 The method detection limit (MDL) as given in 1.2 is based on single operator precision. Detection limits vary by instrumentation. Laboratories may be able to achieve lower detection limits. The method detection limit for this method as described in 1.2 was determined in 1987 (2) .  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given in 8.3, 8.7, 12.1.8, and Section 9.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 14-Mar-2020
• ICS: 07.060 - Geology. Meteorology. Hydrology
• ICS: 71.040.40 - Chemical analysis
• Technical Committee: D22 - Air Quality
• Drafting Committee: D22.03 - Ambient Atmospheres and Source Emissions

Relations

• Refers: ASTM D1356-20a - Standard Terminology Relating to Sampling and Analysis of Atmospheres
• Effective Date: 01-Sep-2020
• Refers: ASTM D1356-20 - Standard Terminology Relating to Sampling and Analysis of Atmospheres
• Effective Date: 15-Mar-2020

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D5086 − 20
Standard Test Method for
Determination of Calcium, Magnesium, Potassium, and
Sodium in Atmospheric Wet Deposition by Flame Atomic
1
Absorption Spectrophotometry
This standard is issued under the fixed designation D5086; 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 ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This test method is applicable to the determination of
mendations issued by the World Trade Organization Technical
calcium, magnesium, potassium, and sodium in atmospheric
Barriers to Trade (TBT) Committee.
wet deposition (rain, snow, sleet, and hail) by flame atomic
2
absorption spectrophotometry (FAAS) (1).
2. Referenced Documents
1.2 The concentration ranges are listed below. The range
3
2.1 ASTM Standards:
tested was confirmed using the interlaboratory collaborative
D883 Terminology Relating to Plastics
test (see Table 1 for a statistical summary of the collaborative
D1129 Terminology Relating to Water
test).
D1193 Specification for Reagent Water
MDL Range of Method Range Tested
D1356 Terminology Relating to Sampling and Analysis of
(mg/L) (2) (mg/L) (mg/L)
Atmospheres
Calcium 0.009 0.03–3.00 0.168–2.939
D2777 Practice for Determination of Precision and Bias of
Magnesium 0.003 0.01–1.00 0.039–0.682
Applicable Test Methods of Committee D19 on Water
Potassium 0.003 0.01–1.00 0.029–0.499
D4453 Practice for Handling of High Purity Water Samples
Sodium 0.003 0.01–2.00 0.105–1.84
D4691 Practice for Measuring Elements in Water by Flame
1.3 The method detection limit (MDL) as given in 1.2 is
Atomic Absorption Spectrophotometry
based on single operator precision. Detection limits vary by
D5012 Practice for Preparation of Materials Used for the
instrumentation. Laboratories may be able to achieve lower
Collection and Preservation of Atmospheric Wet Deposi-
detection limits. The method detection limit for this method as
tion
described in 1.2 was determined in 1987 (2).
E131 Terminology Relating to Molecular Spectroscopy
1.4 The values stated in SI units are to be regarded as
E275 Practice for Describing and Measuring Performance of
standard. No other units of measurement are included in this
Ultraviolet and Visible Spectrophotometers
standard.
E694 Specification for Laboratory Glass Volumetric Appa-
1.5 This standard does not purport to address all of the
ratus
safety concerns, if any, associated with its use. It is the
IEEE/ASTM SI-10 Standard for Use of the International
responsibility of the user of this standard to establish appro-
System of Units (SI): The Modern Metric System
priate safety, health, and environmental practices and deter- 4
2.2 ISO Standard:
mine the applicability of regulatory limitations prior to use.
ISO 8655 Piston-Operated Volumetric Apparatus — Part 2:
Specific warning statements are given in 8.3, 8.7, 12.1.8, and
Piston Pipettes
Section 9.
1.6 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
3.1 Definitions:
1
This test method is under the jurisdiction of ASTM Committee D22 on Air
3
Quality and is the direct responsibility of Subcommittee D22.03 on Ambient For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Atmospheres and Source Emissions. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Current edition approved March 15, 2020. Published April 2020. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1990. Last previous edition approved in 2013 as D5086 – 01 (2013). the ASTM website.
4
DOI: 10.1520/D5086-20. Available from International Organization for Standardization (ISO), ISO
2
The boldface numbers in parentheses refer to a list of references at the end of Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,
this test method. Geneva, Switzerland, http://www.iso.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5086 − 20
TABLE 1 Interlaboratory Precision and Bias for Calcium, Magnesium, Potassium, and Sodium Determined from Analyte Spikes of
Synthetic Atmospheric Wet Deposition Samples
Amount Mean 95 % 95 %
Number of Bias, Bias, Significant
A B
Element Added, Recovery, S Reproducibility S
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: D5086 − 01 (Reapproved 2013) D5086 − 20
Standard Test Method for
Determination of Calcium, Magnesium, Potassium, and
Sodium in Atmospheric Wet Deposition by Flame Atomic
1
Absorption Spectrophotometry
This standard is issued under the fixed designation D5086; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This test method is applicable to the determination of calcium, magnesium, potassium, and sodium in atmospheric wet
2
deposition (rain, snow, sleet, and hail) by flame atomic absorption spectrophotometry (FAAS) (1).
1.2 The concentration ranges are listed below. The range tested was confirmed using the interlaboratory collaborative test (see
Table 1 for a statistical summary of the collaborative test).
MDL Range of Method Range Tested
(mg/L) (2) (mg/L) (mg/L)
Calcium 0.009 0.03–3.00 0.168–2.939
Magnesium 0.003 0.01–1.00 0.039–0.682
Potassium 0.003 0.01–1.00 0.029–0.499
Sodium 0.003 0.01–2.00 0.105–1.84
1.3 The method detection limit (MDL) as given in 1.2 is based on single operator precisionprecision. (Detection2) and may be
higher or lower for other operators and laboratories. Many workers have found that this test method is reliable at lower levelslimits
vary by instrumentation. Laboratories may be able to achieve lower detection limits. The method detection limit for this method
as described in 1.2 than were tested, butwas determined in 1987 the (2precision ).and bias data presented are insufficient to justify
their use at lower levels.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific warning statements are given in 8.3, 8.7, 12.1.8, and Section 9.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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 D19 on Water
D4453 Practice for Handling of High Purity Water Samples
D4691 Practice for Measuring Elements in Water by Flame Atomic Absorption Spectrophotometry
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 Atmospheres
and Source Emissions.
Current edition approved Oct. 1, 2013March 15, 2020. Published October 2013April 2020. Originally approved in 1990. Last previous edition approved in 20082013 as
D5086 – 01 (2013).(2008). DOI: 10.1520/D5086-01R13.10.1520/D5086-20.
2
The boldface numbers in parentheses refer to a list of references at the end of this test method.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’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 ----------------------
D5086 − 20
TABLE 1 Interlaboratory Precision and Bias for Calcium, Magnesium, Potassium, and Sodium Determined from Analyte Spikes of
Synthetic Atmospheric Wet Deposition Samples
Amount Mean 95 % 95 %
A B
Number of S S Bias, Bias, Significant
t o
Element Added, Recovery, Reproducibility Repeatability
Observations mg/L % at 5 % Level
mg/L mg/L Limit Limit
Ca 18 0.168 0.160 0.0062 0.017 0.0063 0.018 −0.008 −4.76 yes
21 0.382 0.332 0.027 0.076 0.011 0.031 −0.030
...