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ASTM E642-19

(Practice)

Standard Practice for Determining Application Rates and Distribution Patterns from Aerial Application Equipment

Standard Practice for Determining Application Rates and Distribution Patterns from Aerial Application Equipment

ABSTRACT
This practice covers uniform procedures for determining and reporting application rates and distribution patterns from agricultural aircraft. The procedures covered deal with both fixed and rotary-wing aircraft equipped with either liquid or dry material distribution systems. The physical characteristics of the liquid or dry material have an effect on the application rate and the distribution patterns. If inert test solutions for materials are substituted for the materials to be applied, they shall have physical characteristics similar to those of the material to be applied. If toxic materials are used in the tests, all safety precautions prescribed. A complete procedure shall consist of five parts: the first part is the determination of the output rate from the aircraft system, the second part involves the determination of the swath distribution pattern by recovery of the applied materials from suitable collectors, the third part covers the determination of usable swath width for field applications, the fourth part discusses the determination of the rate of application of the spray mixture or dry material, and the fifth and last part is the determination of the uniformity of distribution of several swaths.
SCOPE
1.1 This practice covers uniform procedures for determining and reporting application rates and distribution patterns from agricultural aircraft. This practice should not be used for making biological performance tests.  
1.2 The procedures covered deal with both fixed and rotary-wing aircraft equipped with either liquid or dry material distribution systems.  
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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.

General Information

Status
Published
Publication Date
30-Sep-2019
ICS
65.060.40 - Plant care equipment
Technical Committee
E35 - Pesticides, Antimicrobials, and Alternative Control Agents
Drafting Committee
E35.22 - Pesticide Formulations and Delivery Systems
Current Stage
Ref Project

Relations

Replaces
ASTM E642-91(2014) - Standard Practice for Determining Application Rates and Distribution Patterns from Aerial Application Equipment
Effective Date
01-Oct-2019
Referred By
ASTM F1738-23 - Standard Test Method for Determination of Deposition of Aerially Applied Oil Spill Dispersants
Effective Date
01-Oct-2019

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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: E642 − 19
Standard Practice for
Determining Application Rates and Distribution Patterns
1
from Aerial Application Equipment
This standard is issued under the fixed designation E642; 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 3. Test Conditions
1.1 Thispracticecoversuniformproceduresfordetermining 3.1 The physical characteristics of the liquid or dry material
and reporting application rates and distribution patterns from have an effect on the application rate and the distribution
agricultural aircraft. This practice should not be used for patterns. If inert test solutions for materials are substituted for
making biological performance tests. the materials to be applied, they shall have physical character-
istics similar to those of the material to be applied. If toxic
1.2 The procedures covered deal with both fixed and rotary-
materials are used in the tests, all safety precautions prescribed
wing aircraft equipped with either liquid or dry material
by the manufacturer and governmental authority for handling,
distribution systems.
loading, application, and disposal of toxic materials shall be
1.3 The values stated in SI units are to be regarded as
observed.
standard. The values given in parentheses after SI units are
3.2 Pattern tests shall be conducted, with wind speeds not
provided for information only and are not considered standard.
exceeding 16 km/h (10 mph), measured 2.5 m (8.2 ft) above
1.4 This standard does not purport to address all of the
the land surface or crop canopy. If wind occurs, flights shall be
safety concerns, if any, associated with its use. It is the
made both into and with the wind to minimize the effects of
responsibility of the user of this standard to establish appro-
wind velocity on ground speed. Flights shall be made parallel
priate safety, health, and environmental practices and deter-
to or within 20° of the direction of the wind to minimize errors
mine the applicability of regulatory limitations prior to use.
due to crosswinds.These restrictions do not apply to the output
1.5 This international standard was developed in accor-
rate tests.
dance with internationally recognized principles on standard-
4. Procedure
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4.1 A complete procedure shall consist of five parts:
mendations issued by the World Trade Organization Technical
4.1.1 Determination of the output rate from the aircraft
Barriers to Trade (TBT) Committee.
system.
4.1.2 Determination of the swath distribution pattern by
2. Referenced Documents
recovery of the applied materials from suitable collectors.
2
2.1 ASTM Standards:
4.1.3 Determination of usable swath width for field appli-
E726 Test Method for Particle Size Distribution of Granular
cations.
Carriers and Granular Pesticides
4.1.4 Determination of the rate of application of the spray
2.2 ASAE Standard: mixture or dry material, and
ASAE S327.4 Terminology and Definitions for Agricultural 4.1.5 Determination of the uniformity of distribution of
3
Chemical Application several swaths.
4.2 Output Rate Determination:
4.2.1 Liquid Materials—Determine the output rate by the
1
This practice is under the jurisdiction of ASTM Committee E35 on Pesticides,
amount of liquid discharged from the tank for a measured time
Antimicrobials, and Alternative Control Agents and is the direct responsibility of
Subcommittee E35.22 on Pesticide Formulations and Delivery Systems.
interval while the aircraft is in flight under normal conditions.
Current edition approved Oct. 1, 2019. Published December 2019. Originally
The time interval shall be sufficient to permit accurate mea-
approvedin1978.Lastpreviouseditionapprovedin2014asE642 – 91(2014).DOI:
surement of liquid discharged and to minimize errors due to
10.1520/E0642-19.
2
turning the system on and off. Run the system for at least 30 s
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
and measure to the nearest 0.5 s. Measure the amount of liquid
Standards volume information, refer to the standard’s Document Summary page on
used by either refilling the tank to the initial level or by
the ASTM website.
3
measuring the amount remaining in the tank and subtracting
Available from American Society of Agricultural and Biological Engineers
(ASABE), 2
...

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: E642 − 91 (Reapproved 2014) E642 − 19
Standard Practice for
Determining Application Rates and Distribution Patterns
1
from Aerial Application Equipment
This standard is issued under the fixed designation E642; 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 practice covers uniform procedures for determining and reporting application rates and distribution patterns from
agricultural aircraft. This practice should not be used for making biological performance tests.
1.2 The procedures covered deal with both fixed and rotary-wing aircraft equipped with either liquid or dry material distribution
systems.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions
to inch-pound units that after SI units are provided for information only and are not considered standard.
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:
E726 Test Method for Particle Size Distribution of Granular Carriers and Granular Pesticides
2.2 ASAE Standard:
3
ASAE S327.1S327.4 Terminology and Definitions for Agricultural Chemical Application
3. Test Conditions
3.1 The physical characteristics of the liquid or dry material have an effect on the application rate and the distribution patterns.
If inert test solutions for materials are substituted for the materials to be applied, they shall have physical characteristics similar
to those of the material to be applied. If toxic materials are used in the tests, all safety precautions prescribed by the manufacturer
and governmental authority for handling, loading, application, and disposal of toxic materials shall be observed.
3.2 Pattern tests shall be conducted, with wind speeds not exceeding 16 km/h (10 mph), measured 2.5 m (8.2 ft) above the land
surface or crop canopy. If wind occurs, flights shall be made both into and with the wind to minimize the effects of wind velocity
on ground speed. Flights shall be made parallel to or within 20° of the direction of the wind to minimize errors due to crosswinds.
These restrictions do not apply to the output rate tests.
4. Procedure
4.1 A complete procedure shall consist of five parts:
4.1.1 Determination of the output rate from the aircraft system.
4.1.2 Determination of the swath distribution pattern by recovery of the applied materials from suitable collectors.
4.1.3 Determination of usable swath width for field applications.
1
This practice 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 Oct. 1, 2014Oct. 1, 2019. Published December 2014December 2019. Originally approved in 1978. Last previous edition approved in 20082014
as E642 – 91(2008).(2014). DOI: 10.1520/E0642-91R14.10.1520/E0642-19.
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
Available from American Society of Agricultural and Biological Engineers (ASABE), 2950 Niles Rd., St. Joseph, MI 49085, http://www.asabe.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E642 − 19
4.1.4 Determination of the rate of application of the spray mixture or dry material, and
4.1.5 Determination of the uniformity of distribution of several swaths.
4.2 Output Rate Determination:
4.2.1 Liquid Materials—D
...

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1.3 This test method is used to measure and describe the properties of hand protective products in response to convective and radiant energy generated by an electric arc under controlled laboratory conditions.  
1.4 This test method does not apply to electrical contact or electrical shock hazards.  
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined  
1.6 This standard shall not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire assessment that takes into account all of the factors, which are pertinent to an assessment of the fire hazard of a particular end use.  
1.7 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 s...

  • Standard
    14 pages
    English language
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  • Standard
    14 pages
    English language
    sale 15% off