ASTM D3608-19
(Test Method)Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
SIGNIFICANCE AND USE
5.1 Both NO2 and NO play an important role in photochemical-smog-forming reactions. In sufficient concentrations NO2 is deleterious to health, agriculture, materials, and visibility.
5.2 In combustion processes, significant amounts of NO may be produced by combination of atmospheric nitrogen and oxygen; at ambient temperatures, NO can be converted to NO2 by oxygen and other atmospheric oxidants. Nitrogen dioxide also may be generated from processes involving nitric acid, nitrates, the use of explosives, and welding.
SCOPE
1.1 This test method covers the manual determination of the combined nitrogen dioxide (NO2) and nitric oxide (NO) content, total NOx; in the atmosphere in the range from 4 to 10 000 μg/m3 (0.002 to 5 ppm (v)).
1.2 The maximum sampling period is 60 min at a flow rate of 0.4 L/min.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 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.
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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: D3608 − 19
Standard Test Method for
Nitrogen Oxides (Combined) Content in the Atmosphere by
1
the Griess-Saltzman Reaction
This standard is issued under the fixed designation D3608; 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 D3609Practice for Calibration Techniques Using Perme-
ation Tubes
1.1 Thistestmethodcoversthemanualdeterminationofthe
D3631Test Methods for Measuring Surface Atmospheric
combined nitrogen dioxide (NO ) and nitric oxide (NO)
2
Pressure
content, total NO ; in the atmosphere in the range from 4 to
x
3 E1Specification for ASTM Liquid-in-Glass Thermometers
10000 µg/m (0.002 to 5 ppm (v)).
E128Test Method for Maximum Pore Diameter and Perme-
1.2 The maximum sampling period is 60 min at a flow rate
ability of Rigid Porous Filters for Laboratory Use
of 0.4 L/min.
3. Terminology
1.3 The values stated in SI units are to be regarded as
standard. The values given in parentheses are for information 3.1 Definitions—For definitions of terms used in this test
only.
method, refer to Terminology D1356.
1.4 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
3
4.1 The NO is quantitatively (1) converted to NO by a
responsibility of the user of this standard to establish appro- 2
chromicacidoxidizer.TheresultingNO ,plustheNO already
priate safety, health, and environmental practices and deter-
2 2
present, are absorbed in an azo-dye-forming reagent (2).A
mine the applicability of regulatory limitations prior to use.
red-violet color is produced within 15 min, the intensity of
1.5 This international standard was developed in accor-
which is measured spectrophotometrically at 550 nm.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5. Significance and Use
Development of International Standards, Guides and Recom-
5.1 Both NO and NO play an important role in
mendations issued by the World Trade Organization Technical
2
Barriers to Trade (TBT) Committee. photochemical-smog-forming reactions. In sufficient concen-
trationsNO isdeleterioustohealth,agriculture,materials,and
2
2. Referenced Documents
visibility.
2
2.1 ASTM Standards:
5.2 In combustion processes, significant amounts of NO
D1071Test Methods for Volumetric Measurement of Gas-
may be produced by combination of atmospheric nitrogen and
eous Fuel Samples
oxygen;atambienttemperatures,NOcanbeconvertedtoNO
2
D1193Specification for Reagent Water
by oxygen and other atmospheric oxidants. Nitrogen dioxide
D1356Terminology Relating to Sampling and Analysis of
also may be generated from processes involving nitric acid,
Atmospheres
nitrates, the use of explosives, and welding.
D1357Practice for Planning the Sampling of the Ambient
6. Interferences
Atmosphere
D3195Practice for Rotameter Calibration
6.1 Anysignificantinterferencesduetosulfurdioxide(SO )
2
should be negated by the oxidation step. The addition of
1 acetone to the reagent retards color-fading by forming a
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 temporary addition product with SO . This will protect the
2
Atmospheres and Source Emissions.
reagent from incidental exposure to SO and will permit
2
Current edition approved March 1, 2019. Published April 2019. Originally
readingthecolorintensitywithin4to5h(insteadofthe45min
approved in 1977. Last previous edition approved in 2011 as D3608–95 (2011).
required without acetone) without appreciable losses.
DOI: 10.1520/D3608-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The boldface numbers in parentheses refer to a list of references at the end of
the ASTM website. this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3608 − 19
6.2 A five-fold ratio of ozone to NO will cause a small 7.3.2 Measure the porosity of an absorber in accordance
2
interference, the maximal effect occurring in 3 h. The reagent with Test Method E128. If the frit is clogged or visibly
assumes a slightly orange tint. discolored, car
...
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: D3608 − 95 (Reapproved 2011) D3608 − 19
Standard Test Method for
Nitrogen Oxides (Combined) Content in the Atmosphere by
1
the Griess-Saltzman Reaction
This standard is issued under the fixed designation D3608; 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
1.1 This test method covers the manual determination of the combined nitrogen dioxide (NO ) and nitric oxide (NO) content,
2
3
total NO ; in the atmosphere in the range from 4 to 10 000 μg/m (0.002 to 5 ppm (v)).
x
1.2 The maximum sampling period is 60 min at a flow rate of 0.4 L/min.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 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
2
2.1 ASTM Standards:
D1071 Test Methods for Volumetric Measurement of Gaseous Fuel Samples
D1193 Specification for Reagent Water
D1356 Terminology Relating to Sampling and Analysis of Atmospheres
D1357 Practice for Planning the Sampling of the Ambient Atmosphere
D3195 Practice for Rotameter Calibration
D3609 Practice for Calibration Techniques Using Permeation Tubes
D3631 Test Methods for Measuring Surface Atmospheric Pressure
E1 Specification for ASTM Liquid-in-Glass Thermometers
E128 Test Method for Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology D1356.
4. Summary of Test Method
3
4.1 The NO is quantitatively (1) converted to NO by a chromic acid oxidizer. The resulting NO , plus the NO already present,
2 2 2
are absorbed in an azo-dye-forming reagent (2). A red-violet color is produced within 15 min, the intensity of which is measured
spectrophotometrically at 550 nm.
5. Significance and Use
5.1 Both NO and NO play an important role in photochemical-smog-forming reactions. In sufficient concentrations NO is
2 2
deleterious to health, agriculture, materials, and visibility.
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, 2011March 1, 2019. Published October 2011April 2019. Originally approved in 1977. Last previous edition approved in 20052011 as
D3608 – 95 (2005).(2011). DOI: 10.1520/D3608-95R11.10.1520/D3608-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The boldface numbers in parentheses refer to thea list of references appended to this test method.at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3608 − 19
5.2 In combustion processes, significant amounts of NO may be produced by combination of atmospheric nitrogen and oxygen;
at ambient temperatures, NO can be converted to NO by oxygen and other atmospheric oxidants. Nitrogen dioxide also may be
2
generated from processes involving nitric acid, nitrates, the use of explosives, and welding.
6. Interferences
6.1 Any significant interferences due to sulfur dioxide (SO ) should be negated by the oxidation step. The addition of acetone
2
to the reagent retards color-fading by forming a temporary addition product with SO . This will protect the reagent from incidental
2
exposure to SO and will permit reading the color intensity within 4 to 5 h (instead of the 45 min required without acetone) without
2
...
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