ASTM E2798-19
(Test Method)Standard Test Method for Characterization of Performance of Pesticide Spray Drift Reduction Adjuvants for Ground Application
Standard Test Method for Characterization of Performance of Pesticide Spray Drift Reduction Adjuvants for Ground Application
SIGNIFICANCE AND USE
5.1 Pesticide regulations for the minimization of drift during pesticide application often require active ingredient (a.i.) product use under defined droplet size conditions. Spray performance with respect to transport and deposition of droplets and particles at target surfaces and product efficacy for desired applications are also affected by droplet size spectra. The effect of drift reduction adjuvants on droplet size spectra should be understood in this context. The present test method describes standard tests that can be conducted to investigate the performance of pesticide spray drift reduction adjuvants under simulated field use conditions for drift management decisions in the context of the entire spraying process. The measured reduction in driftable fines and shift in spray droplet size distribution can be used to reduce the buffer zones mandated by regulatory agencies.
SCOPE
1.1 This test method is used to characterize the performance of pesticide spray drift reduction adjuvants with respect to spray droplet size spectra, volume of fines, and other use parameters under simulated field ground application conditions. This test method does not include any procedures to evaluate if pump shear degrades the performance of the spray drift reduction adjuvant.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
Note 1: This method uses industry-standard units. The following conversions to SI units are provided for convenience: 1 mph = 1.61 kph; 1 in = 2.54 cm; 1 gal/acre = 9.36 L/hectare.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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: E2798 − 19
Standard Test Method for
Characterization of Performance of Pesticide Spray Drift
1
Reduction Adjuvants for Ground Application
This standard is issued under the fixed designation E2798; 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 E177 Practice for Use of the Terms Precision and Bias in
ASTM Test Methods
1.1 This test method is used to characterize the performance
E456 Terminology Relating to Quality and Statistics
of pesticide spray drift reduction adjuvants with respect to
E609 Terminology Relating to Pesticides
spray droplet size spectra, volume of fines, and other use
E799 Practice for Determining Data Criteria and Processing
parameters under simulated field ground application condi-
for Liquid Drop Size Analysis
tions. This test method does not include any procedures to
E1260 Test Method for Determining Liquid Drop Size
evaluate if pump shear degrades the performance of the spray
Characteristics in a Spray Using Optical Nonimaging
drift reduction adjuvant.
Light-Scattering Instruments
1.2 The values stated in SI units are to be regarded as
E1519 Terminology Relating to Agricultural Tank Mix Ad-
standard. No other units of measurement are included in this
juvants
standard.
E1620 Terminology Relating to Liquid Particles andAtomi-
zation
NOTE 1—This method uses industry-standard units. The following
conversions to SI units are provided for convenience: 1 mph = 1.61 kph; E2408 Test Method for Relative Extensional Viscosity of
1 in = 2.54 cm; 1 gal/acre = 9.36 L/hectare.
Agricultural Spray Tank Mixes
4
1.3 This standard does not purport to address all of the
2.2 ASABE Standards:
safety concerns, if any, associated with its use. It is the
ANSI/ASAE S572.2 Spray Nozzle Classification by Droplet
responsibility of the user of this standard to establish appro-
Spectra, July 2018
priate safety, health, and environmental practices and deter-
5
2.3 NFPA Standards:
mine the applicability of regulatory limitations prior to use.
NFPA 30 Flammable and Combustible Liquids Code
1.4 This international standard was developed in accor-
NFPA 33 Standard for Spray Application Using Flammable
dance with internationally recognized principles on standard-
or Combustible Materials
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3. Terminology
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. 3.1 Definitions for terms used in this test method can be
found in Terminologies E456, E609, E1519, and E1620.
2. Referenced Documents
2
4. Summary of Test Method
2.1 ASTM Standards:
D3825 Test Method for Dynamic Surface Tension by the
4.1 This test method provides guidelines for the measure-
3
Fast-Bubble Technique (Withdrawn 2016)
ment of parameters pertaining to the performance of drift
reduction adjuvants under simulated field ground application
1 conditions.The measurements can be made in a wind tunnel or
This test method is under the jurisdiction of ASTM Committee E35 on
Pesticides, Antimicrobials, and Alternative Control Agents and is the direct spray chamber. The method describes the preparation,
responsibility of Subcommittee E35.22 on Pesticide Formulations and Delivery
composition, and test/application conditions for droplet size
Systems.
and spray pattern measurements. Exact selection of application
Current edition approved Oct. 1, 2019. Published December 2019. Originally
conditions, such as nozzle type and tank mix partners, may
approved in 2011. Last previous edition approved in 2011 as E2798–11.
DOI:10:1520/E2798–19.
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
4
Standards volume information, refer to the standard’s Document Summary page on Available from American Society of Agricultural and Biological Engineers
the ASTM website. (ASABE), 2950 Niles Rd., St. Joseph, MI 49085, http://www.asabe.org.
3 5
The last approved version of this historical standard is referenced on Available from National Fire Protection Association (NFPA), 1 Batterymarch
www.astm.org. Park, Quincy, MA 02169-7471, http://www.nfpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2798 − 19
varyaccordingtointendedusecond
...
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: E2798 − 11 E2798 − 19
Standard Test Method for
Characterization of Performance of Pesticide Spray Drift
1
Reduction Adjuvants for Ground Application
This standard is issued under the fixed designation E2798; 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 is used to characterize the performance of pesticide spray drift reduction adjuvants with respect to spray
droplet size spectra, volume of fines, and other use parameters under simulated field ground application conditions. This test
method does not include any procedures to evaluate if pump shear degrades the performance of the spray drift reduction adjuvant.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
NOTE 1—This method uses industry-standard units. The following conversions to SI units are provided for convenience: 1 mph = 1.61 kph; 1 in = 2.54
cm; 1 gal/acre = 9.36 L/hectare.
1.3 This test method 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.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 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:
3
D3825 Test Method for Dynamic Surface Tension by the Fast-Bubble Technique (Withdrawn 2016)
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
E609 Terminology Relating to Pesticides
E799 Practice for Determining Data Criteria and Processing for Liquid Drop Size Analysis
E1260 Test Method for Determining Liquid Drop Size Characteristics in a Spray Using Optical Nonimaging Light-Scattering
Instruments
E1519 Terminology Relating to Agricultural Tank Mix Adjuvants
E1620 Terminology Relating to Liquid Particles and Atomization
E2408 Test Method for Relative Extensional Viscosity of Agricultural Spray Tank Mixes
4
2.2 ASABE Standards:
ASAE S572.1ANSI/ASAE S572.2 Spray Nozzle Classification by Droplet Spectra, March 2009July 2018
5
2.3 NFPA Standards:
NFPA 30 Flammable and Combustible Liquids Code
NFPA 33 Standard for Spray Application Using Flammable or Combustible Materials
1
This test method is under the jurisdiction of ASTM Committee E35 on Pesticides, Antimicrobials, and Alternative Control Agents and is the direct responsibility of
Subcommittee E35.22 on Pesticide Formulations and Delivery Systems.
Current edition approved Jan. 1, 2011Oct. 1, 2019. Published February 2011December 2019. DOI:10:1520/E2798–11.Originally approved in 2011. Last previous edition
approved in 2011 as E2798–11. DOI:10:1520/E2798–19.
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 last approved version of this historical standard is referenced on www.astm.org.
4
Available from American Society of Agricultural and Biological Engineers (ASABE), 2950 Niles Rd., St. Joseph, MI 49085, http://www.asabe.org.
5
Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02169-7471, http://www.nfpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2798 − 19
3. Terminology
3.1 Definitions for terms used in this test method can be found in Terminologies E456, E609, E1519, and E1620.
4. Summary of Test Method
4.1 This test method provides
...
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