The quality of pesticides can be easily identified by the following methods
1. Identify true and false from the appearance of pesticide labels and packaging
1. When registering pesticides, there are strict requirements for pesticide labels. The pesticide label should indicate the product name, pesticide registration number, product standard number, production license number or production approval document number, and the active ingredients and content of the pesticide. Weight, product performance, toxicity, use, method of use, date of manufacture, expiration date, precautions, name, address, postal code of the manufacturer, etc., which belong to the pesticide packaging, should also indicate the sub-assembly unit. In the absence of any of the above, questions about product quality should be questioned.
2. Judging from the name of the pesticide product. The product name on the label should be a Chinese common name or a legal product name. However, the names of pesticide products on the market are very chaotic, some are free to take the name of the product, and some are free to add the words type I, type II, compound, high efficiency, etc. These are illegal names. Pesticide purchasers should first carefully check the pesticide label. Any product that cannot be sure of the name of the pesticide ingredient should not be easily purchased.
3, the same measurement of product specifications should be the same, can not be large or small, internal and external packaging should be complete, can not be damaged.
4. Ask to see if the product has a factory certificate.
5. Bulk pesticide products cannot be purchased. Because production and business operators can be adulterated at any time, it is difficult to deal with problems.
Second, identify the pros and cons from the form of pesticide substances
1. Powder and wettable powder should be loose powder and no agglomerate. If there is agglomeration or large particles, it means that it has been damp. Not only the fineness of the product is not required, but also the content of its active ingredient may change. If the colors are not uniform, it may indicate a quality problem.
2. The emulsifiable concentrate should be a homogeneous liquid with no precipitation or suspended matter. If stratification or turbidity occurs, or the emulsion diluted with water is not uniform, there are floating particles visible to the naked eye, or there are emulsifiable concentrates and precipitates, indicating that the quality of the product may be problematic.
3. Suspending agent and suspoemulsion should be a flowable suspension, no agglomeration, long-term storage, there may be a small amount of stratification, but it should be restored to its original state after shaking. If the product does not return to its original shape or remains agglomerated after shaking, there is a quality problem with the product.
4. If the tablet for fumigation is in powder form, it indicates that it has failed.
5, the water agent should be a homogeneous liquid, no precipitation or suspended matter, generally no turbid precipitation after dilution with water.
6, granule products should be uniform in thickness, should not contain too much powder.
1. Identify true and false from the appearance of pesticide labels and packaging
1. When registering pesticides, there are strict requirements for pesticide labels. The pesticide label should indicate the product name, pesticide registration number, product standard number, production license number or production approval document number, and the active ingredients and content of the pesticide. Weight, product performance, toxicity, use, method of use, date of manufacture, expiration date, precautions, name, address, postal code of the manufacturer, etc., which belong to the pesticide packaging, should also indicate the sub-assembly unit. In the absence of any of the above, questions about product quality should be questioned.
2. Judging from the name of the pesticide product. The product name on the label should be a Chinese common name or a legal product name. However, the names of pesticide products on the market are very chaotic, some are free to take the name of the product, and some are free to add the words type I, type II, compound, high efficiency, etc. These are illegal names. Pesticide purchasers should first carefully check the pesticide label. Any product that cannot be sure of the name of the pesticide ingredient should not be easily purchased.
3, the same measurement of product specifications should be the same, can not be large or small, internal and external packaging should be complete, can not be damaged.
4. Ask to see if the product has a factory certificate.
5. Bulk pesticide products cannot be purchased. Because production and business operators can be adulterated at any time, it is difficult to deal with problems.
Second, identify the pros and cons from the form of pesticide substances
1. Powder and wettable powder should be loose powder and no agglomerate. If there is agglomeration or large particles, it means that it has been damp. Not only the fineness of the product is not required, but also the content of its active ingredient may change. If the colors are not uniform, it may indicate a quality problem.
2. The emulsifiable concentrate should be a homogeneous liquid with no precipitation or suspended matter. If stratification or turbidity occurs, or the emulsion diluted with water is not uniform, there are floating particles visible to the naked eye, or there are emulsifiable concentrates and precipitates, indicating that the quality of the product may be problematic.
3. Suspending agent and suspoemulsion should be a flowable suspension, no agglomeration, long-term storage, there may be a small amount of stratification, but it should be restored to its original state after shaking. If the product does not return to its original shape or remains agglomerated after shaking, there is a quality problem with the product.
4. If the tablet for fumigation is in powder form, it indicates that it has failed.
5, the water agent should be a homogeneous liquid, no precipitation or suspended matter, generally no turbid precipitation after dilution with water.
6, granule products should be uniform in thickness, should not contain too much powder.
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