Simple identification method for failed pesticides
Poor storage or failure of storage of chemical pesticides can cause deterioration or failure of pesticides. The simple identification methods generally include:
Identification method of dairy pesticides: Observing method, it is found that there are sedimentation and stratification flocculation in the pesticide. The bottle can be placed in hot water and allowed to stand for 1 hour. If the sediment is decomposed, the flocculent disappears, indicating that the pesticide is effective; Otherwise, it is considered invalid. Shaking method, stratification phenomenon occurs in the pesticide bottle, the lower layer of the upper layer of oil slicks, the medicine bottle can be shaken to make the pesticide uniform, and then allowed to stand for 1 hour. If the layering disappears, it means that it has not expired and can be used continuously. If it is still stratified, it proves that the pesticide has deteriorated.
Powder pesticide identification method: observation method, such as powder pesticide has been agglomerated, not easy to break, proved invalid, can no longer be used. Suspension method, take 50 grams of powder pesticide, put it in a glass bottle, add a little water to make a paste, add appropriate amount of water and stir evenly, put it for 10-20 minutes, good pesticide powder is fine, less and the precipitation is slow; Pesticide powders precipitate quickly and often. Cauterization method: Take 10-20 grams of powder pesticide, put it on a metal sheet and put it on fire. If it is white smoke, it proves that the pesticide has not failed, otherwise it means it has failed.
Wettable powder pesticide identification method: Take a cup of water and gently sprinkle a little pesticide on the water. After 1 minute, if the pesticide can not be dissolved in the water, it has deteriorated. In addition, 1 g of pesticide is sprinkled into a glass of water and stirred thoroughly. If precipitation occurs quickly, the liquid surface appears translucent, indicating that the pesticide has failed.
Identification method of granule pesticide: If the coated granule powder falls off a lot, or the kneaded granules disintegrate the drug granules very much, the powder in the packaging bag is a lot, and it is not granules, indicating that the pesticide has failed.
Product Name: silicon carbide coated multi grid abrasive sandpaper wet or dry sandpaper
Material: Silicon carbide
Size: 230mm x 280mm, 93*230mm
Substrate: Paper backing
Grit: 60#, 80#, 100#, 120#, 150#, 180#, 240#, 280#, 320#, 360#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#, 2000#, 3000#, 5000#, 7000#
Coating: Electro coated
Feature: Waterproof, flexible, dual use, durable, cost-effective.
Application: Used for grinding and polishing metal, wood, glass, ceramics, plastic, varnish, stone, wall etc.
Grinding & Polishing Sandpaper
Soft Paper Backing / Uniform Sand / Wet & Dry Use
How to Choose Grit
From 60# to 2000#
Grit Size Introduction Suitable for
60# - 220# coarse sand, for hard and rough products Metal, wood, wall, stone
240# - 500# Frequently used, for secondary grinding Wall, furniture, stamp
600# - 1500# Fine sand, common used for grinding and polishing Metal, bodhi, amber, honeystone, jade and plastic
2000# and above Super fine, for polishing Amber, honeystone, bodhi, metal, nail, mirror polish etc.
Packing Details: 100 pcs/box, 1000 pcs/CTN.
Lead Time: For small quantity, 3-5 days after payment done.
For large quantity, can be negotiable.
Delivery Methods: by sea, air, expresses like DHL, Fedex, UPS, EMS etc.
The related abrasive products we can supply is Flap Disc Adhesive , Abrasive Flap Disc, and Flap Disc Making Machine, Flap Wheels , Flap Wheel Machine , Abrasive Sanding Disc, if you have any needs about abrasive tools, please kindly feel free to contact us.
Abrasive Sandpaper,waterproof sandpaper,Electric Sandpaper,Sandpaper Waterproof,Silicon Carbide Sandpaper
Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jiadingabrasive.com