Commonly used formulas for sanitary insecticides

Commonly used hygienic insecticides are various preparations prepared by processing the original drug. The processing method is different, the prepared dosage form is different, and the method of dilution and use is also different.
1 î—™ wettable powder (WP) The composition is the original drug, carrier (ceramic, surfactant (wetting agent) and adjuvant (stabilizer), pulverized. Such as 2.5% Kai Su Ling WP, 5 % Struggle WP, 5% WP, 10% Aiken WP and 10% GF WP, mainly used for residual spraying.
2 î—™ emulsifiable concentrate (EO) and water emulsion (EW) The original drug is dissolved in a certain amount of solvent (or water) in a certain proportion, and a certain emulsifier is added, and stirred to form a uniform transparent oily liquid. The emulsifiable concentrates currently used are mainly 50% dichlorvos emulsifiable concentrate (sanitary grade), 50% malathion emulsifiable concentrate, 50% fenthion emulsifiable concentrate, etc., and are mostly used for space and residual spraying.
3 floating agent (SC) The solid drug , surfactant and a small amount of solvent, ultra-fine pulverization by the dampness method to make a viscous and flowable suspension. The suspending agents currently used are mainly: 2.5% enzymatic suspending agent, 1.5% or 10% struggling suspension, 5% Taikang suspension, 5% chlorhexidine suspension and 1.25% or 12.5% ​​insecticide suspension. . Suspending agent is a new type of retention insecticide, which is superior to similar wettable powder in terms of use and effect.
4 î—™ oil agent (OL) The pesticide active ingredient is directly dissolved in kerosene (deodorized kerosene, aviation kerosene, diesel, etc.). The existing oil agent can be made into an aerosol, or used. Special oil for hot smoke generators. Other dosage forms that do not need to be diluted and prepared for direct use include: smoke agent (FU) (insecticide tablets, mosquito killer, mosquito coil), aerosol (AE), poison bait (RB) (gel bait, PS), electrothermal solid (Liquid) mosquito coils (MV, LV), etc.

Double-concave Cylinder Lens

Cylindrical lenses have at least one surface that is formed like a portion of a cylinder.Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism,stretching a point of light into a line.They are available in either plano-concave or plano-convex configurations. Plano-Concave Cylindrical lenses have a negative focal length and are used for image reduction or to spread light. Plano-Convex Cylindrical lenses have a positive focal length, which makes them ideal for collecting and focusing light for many imaging applications.

Some styles of cylindrical lenses have antireflective coatings to increase the transmission of light through the lens. Fused silica cylinder lenses are ideal for demanding laser machining and medical applications.

Plano-convex cylinder lens,Plano-Concave Cylinder Lens,Double-Convex Cylinder Lens,bi-concave cylinder lens,Meniscus Cylinder Lens, Rod Cylinder Lens ,Achromatic cylinder lens are available.

double concave (dcv)1620973754(1)



Specification of our cylinderical lens as follow:
*Material: BK7,Ge,UV-grade fuse silica(JGS1,JGS2,JGS3)or other optical materials
*Dimension Tolerance: +0.0 -- -0.1mm
*Center Thickness: +/-0.1mm
*Focal Length Tolerance: +/-1%
*Surface Quality:20/10
*Surface Figure: lambda/2 at 633nm on plano side
*Clear Aperture>90%
*Chamfer: 0.25mm at 45 degree typical
*Coating Optional

Double Convex Lens,Bi-Concave Irregular Cylindrical Lens,Double-Concave Cylindrical Lens,Dcv Cylindrical Lens

China Star Optics Technology Co.,Ltd. , http://www.realpoooptics.com