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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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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 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 and health practices and determine the applicability of regulatory limitations prior to use.
ICS Number Code 65.060.40 (Plant care equipment)
UNSPSC Code 95101900(Agricultural land); 21101801(Sprayers)
ASTM E642-91(2014), Standard Practice for Determining Application Rates and Distribution Patterns from Aerial Application Equipment, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top