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Description of ASTM-E2798 2011ASTM E2798 - 11Standard Test Method for Characterization of Performance of Pesticide Spray Drift Reduction Adjuvants for Ground ApplicationActive Standard ASTM E2798 | Developed by Subcommittee: E35.22 Book of Standards Volume: 11.05 ASTM E2798Significance and Use 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. 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 1This 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.
ASTM Standards D3825 Test Method for Dynamic Surface Tension by the Fast-Bubble Technique 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 ASABE Standards ASAES572.1 Spray Nozzle Classification by Droplet Spectra, March 2009NFPA Standards NFPA33 Standard for Spray Application Using Flammable or Combustible MaterialsKeywords adjuvant; aerosol spray drift; drift control; drift reduction; droplet size spectrum; ground application; tank mix; ICS Code ICS Number Code 65.100.01 (Pesticides and other agrochemicals) DOI: 10.1520/E2798-11 ASTM International is a member of CrossRef. ASTM E2798The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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