b'& SPRAYERS APPLICATORS SELECTING THE RIGHT SPRAY NOZZLESHANDLING DRY MATERIALSPRAY QUALITYThe size and the variation of droplets determine the spray quality that a nozzle produces. To apply a spray solution safely and with the most agronomic value, it must be delivered with the appropriate droplet size spectrum.& HOSE TRAILERS VALVES &STRAINERS ASABE S572.1 DROPLET SIZE CLASSIFICATIONThe American Society of Agricultural and Biological Engineers (ASABE) developed the ASABE S572.1 standard to measure and interpret spray quality from nozzles.ACCESSORIES TANKS &Spray Quality* Size of Droplets VMD RangeColor Code Retention on DifficultDrift Potential(MIcrons**) To Wet LeavesExtremely Fine Small 60 Purple Excellent HighVery Fine 61-105 Red ExcellentPUMPS NOZZLES, TIPS NH3 TECHNICAL INDEX Fine 106-235 Orange Very GoodMedium 236-340 Yellow GoodCoarse 341-403 Blue ModerateFITTINGS EQUIPMENT PLANTERVery Coarse 404-502 Green PoorExtremely Coarse 503-665 White Very PoorUltra Coarse Large 665 Black Very Poor Low*Always read the pesticide label to determine which spray quality is required.** Estimated from sample reference graph in ASABE/ANSI/ASAE Standard S572.1.The ASABE S572.1 standard uses eight droplet classification categories, six of which are common for agriculture and horticulture: Very Fine, Fine, Medium, Coarse, Very Coarse and Extremely Coarse. Most agrochemical applications recommend a fine, medium, or coarse spray.Fine Medium CoarseFine sprays provide enhanced retentionMedium sprays are the most widely Coarse sprays are used with systemic, GUIDANCE CONTROLS &SPRAYERfor directed spraying on the targetused spray type. residual, and soil-applied herbicides.including:Used by default by most Foliar-acting weed control applicators when spray quality is Contact-acting fungicides andnot defined by the label.insecticidesSystemic-acting fungicides, & SPRAY GUNS PRODUCTS INFORMATION insecticides and herbicides.284'