The current agricultural capital market is mixed, and it is difficult to distinguish between true and false. Be cautious when purchasing agricultural products. Taking pesticides as an example, many unscrupulous traders use re-labeling methods to sell expired pesticides , not only to defraud farmers’ money, but also to delay farming. So how do you identify whether a pesticide has failed? The following four points identification method is for reference: 1. Direct method: For powder pesticides, look at the appearance first. If it has been obviously agglomerated by moisture, the taste of the medicine is not strong or has other odors, and it can be smashed into a group by hand, which means that it has basically failed. For emulsion pesticides, the vial is first allowed to stand. If the liquid is turbid or stratified, that is, the oil and water are separated, there is sediment formation or flocculation, indicating that the agent may have failed. 2, heating method: This method is applicable to powder pesticides. Take 5-10 grams of pesticides and heat them on a piece of metal. If a large amount of white smoke is produced and there is a strong pungent smell, this means that the medicine is good; otherwise, it means that it has failed. 3. Oscillation method: This method is applicable to emulsion pesticides. For pesticides with oily water layer, first shake the vial with force and observe it after standing for 1 hour. If stratification still occurs, this indicates that the agent has deteriorated. 4. Dilution method: This method is applicable to emulsion pesticides. Take 50 grams of pesticide, put it in a glass bottle, add 150 grams of water, shake it vigorously and let it stand for 30 minutes. If the liquid is evenly milky white, and there is no oil on the oil, there is no sediment, which means the agent is good; otherwise it is Insufficient pesticides, and the more the upper layer of oil, the worse the drug. The quick stacking door has many functions such as heat preservation and cold preservation, insect and wind prevention, dust insulation and sound insulation. Widely used in underground parking lots, industrial plants, food, textiles, electronics, printing and packaging, automotive assembly, precision machinery, logistics and warehousing and other places. Automatic Stacking Doors,High Speed Security Door,Rapid Stacking Folding Door,Automatic Stacking PVC Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfgaragedoor.com