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1.1 These methods cover procedures for testing hydraulic spray nozzles used in agriculture. The methods herein cover the following performance parameters: nozzle flow rate, nozzle spray angle, liquid distribution, spray droplet size, and nozzle wearability.

1.2 These methods are applicable to hydraulic spray nozzles which produce the following spray patterns: flat-fan, hollow cone, and full cone.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address the safety concerns 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.

3.1 The purpose of these methods is to provide uniform testing procedures for evaluating the performance criteria of hydraulic spray nozzles used for agricultural purposes.

3.2 The procedures set forth in these methods are for spray nozzles of the hydraulic energy type in which the spray material is forced through an orifice under pressure, providing fluid break-up into droplets.

3.3 Droplet producing nozzles that operate by means other than hydraulic energy are not applicable to these methods.