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Pesticide quality simple identification method
First, the identification of pesticide labels and packaging on the appearance of true and false 1, pesticide labels have strict requirements, specify the product name, pesticide registration number, product standard number, production license or production approval number and the effective pesticide content, content, Product performance, toxicity, use, method of use, date of manufacture, expiry date, precautions, manufacturer's name, address, zip code, and packing unit, all of which are missing, should be questioned about quality. 2. Judging from the name of the pesticide product. The product name on the label should be a common name or legal product name. At present, the names of pesticide products on the market are very chaotic. Some of them randomly take trade names, and some of them are marked with the words FH, I, and compound. These are illegal names. Buyers of pesticides should look at the label carefully. Do not purchase lightly products that do not confirm the name of the pesticide. 3, the same product specifications should be the same, internal and external packaging should be complete and can not be damaged, each product packaging box is accompanied by product certification. 4, bulk pesticide products can not be purchased. Because production and operators can be adulterated at any time, it is always difficult to deal with. Second, from the form of pesticides to identify the advantages and disadvantages 1, powder, warm powder should be loose powder, no unity. If there is agglomeration or more grainy sensation, it indicates that it has been affected by dampness. Not only does the fineness of the product fail to meet the requirements, its active ingredient content may also change. If the color of the product is uneven, it also indicates that there may be quality problems. 2. The emulsifiable concentrate should be a homogeneous liquid with no precipitate or suspended matter. If there is stratification and turbidity, or if the emulsion diluted with water is not uniform or contains emulsifiable concentrates or precipitates, the product quality may be problematic. 3, suspension agents, suspoemulsions should be flowable suspension, no agglomeration, long-term storage, there may be a small amount of stratification, but after shaking should be able to restore the original state. If after shaking, the product can not be restored or there is still agglomeration, the product has quality problems. 4. Tablets for fumigation are powdery and indicate failure. 5, the liquid agent should be a homogeneous liquid, no precipitation or suspended solids, generally do not appear cloudy, precipitation after dilution with water. 6, granule products should be uniform in size, should not contain many powders.