Air blast applicators

Air-blast applicator wearing single layer of clothing and gloves. 

FIGURE 12.8 Air blast application to a vineyard. (Photo courtesy of the Spray Drift Taskforce. With permission.)... 

Expls similar to Octol, viz, HMX/TNT/Al/Wax, 47/31/22/3-5, have been prepd and tested for air-blast and underwater effectiveness. The performance improvements that resulted (1—2%) over Cyclotol analogs were not considered worth the additional cost (Ref 4), and other expls are generally exploited for such applications... 

As a result of its use as an insecticide on fruit trees, vegetables, and other crops, endosulfan is released directly to the atmosphere during application. The compound is applied principally by air-blast equipment or boom sprayers (WHO 1984). No information was found in the available literature regarding atmospheric releases from manufacturing or formulation operations, or occurrence of the compound in air samples collected at NPL sites. 

Diazinon SOW was applied by air blast sprayers in accordance with typical application practices for orchards. Application began in March and continued until early-to mid-July. Dormant sprays typically contained diazinon in an oil mixture. Aqueous emulsions were applied as foliar sprays thereafter. Eqmpment was calibrated to provide an application rate of 3.4 kg active ingredient (a.i.)ha At least five applications were made at approximately 2-week intervals. During these applications, 233 samples were taken from spray tanks across the four treatment fields to estimate the application rate in PA, and 244 samples were collected in WA. 

Type of application equipment used for example, using over-the-top spray boom or air blast for grapes. The sprayer should be consistent with local cultural practices for each test site. 

The amounts of surface deposits resulting from commercial and experimental applications of DDT and parathion were ascertained on apples, pears, peaches, oranges, and lemons. Applications were made with conventional high pressure spraying equipment, utilizing manually operated guns or semiautomatic booms, and with two types of air blast sprayers. 

Volunteers CA 15 mixer-loaders (citrus) 15 applicators (air-blast) 15 cleanup workers. MI 3 mixer-loaders and 3 applicators. FL 3 mixer-loaders and 3 applicators. AZ 3 mixer-loaders and 3 applicators. 

After degreasing, metals have to be blasted with a sufficiently abrasive material to remove the surface oxidation layer. Application of the abrasive to the metal surface to be cleaned depends very much on the dimensions and type of metal. Large dimensioned metals and interiors of such articles as tanks, will require application of the abrasive by means of air blasting techniques. Smaller metals of suitable strength can be treated in rumbler machines where the metals are tumbled whilst being blasted by the abrasive carried in an airstream. 

A useful application of the heat of expln is to predict the ability of an expl to produce and accelerate fragments. This is accomplished by the so-called Gurney formulas (Vol 6, G195-R). Other applications involve the prediction of air-blast and underwater performance of expls as described on pp 3.16—3.19 of Ref 34... 

Comer et al. (2) therefore evaluated the effect of exposure to carbaryl (1-naphthyl methylcarbamate) on formulating plant workers and on workers applying carbaryl to fruit orchards with a tractor-drawn air-blast sprayer. However, information was still needed on the persistence of carbaryl in apple orchards and on the resultant exposure of workers who re-enter treated orchards. Further, no studies had been done on other types of crops. The present study was undertaken to determine the exposure of agricultural workers to carbaryl as a function of type of formulation, application equipment, application method, and type of work performed (i.e., mixer-loader, applicator, flagman, bystander, and apple thinners). 

The label lists the dosage as 4 pounds formulation per 100 gallons of water for dilute application. Your air blast sprayer tank holds 600 gallons. You wish to apply a 5X concentration. 

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