I. View the label to indicate that all pesticides officially approved for production and sales by the state are printed with the “Registration Certificate No.â€, “Quasi-Yield Certificate No.†and “Product Standard No.†on the product label description. Pesticide should be taken with caution on pesticides that are not certified or "three certificates" in case they are deceived.
At the time of purchase, you must also focus on the name of the pesticide on the product label description. Active ingredient content, date of manufacture (production batch number). 1 The name of the pesticide includes the product name and the common name of the product. For pesticides that have only the product name and no common name (mostly some profitable compound with a strange product name and usual composition), it is best not to buy it. 2 Do not buy if there is no active ingredient. 3 If the quality guarantee period is exceeded, the efficacy or failure will be reduced. The shelf life of powder, emulsifiable concentrate and water lotion is 3 years, 2 years and 1 year respectively. In addition, be careful not to buy non-manufacturers, indicating that there are traces of alterations, as well as pesticides that are damaged or leaky in packaging.
Second, the appearance inspection and sampling identification 1. The appearance of the emulsifiable concentrate is dark brown or light brown transparent liquid, no delamination, no turbidity, no precipitation, no crystallization. Take a little drop into the water, it can quickly spread, cloud-like, a little stirring to form a uniform and stable emulsion, no oil on the water surface, no sediment at the bottom of the water.
2. The appearance of the water agent is transparent and there is no precipitation or impurities.
3. The appearance of powder and wettable powder requires loose texture, no agglomeration, high fineness and uniform color. Use your thumb and forefinger to lick some fine powder. If the powder is loose, it will show good dryness. If it is stuck together, it will be wet or the water content will be too high, and the quality will be affected. The wettable powder is put into water, shaken or slightly stirred to become a uniform emulsion liquid, and the powder is suspended in water without precipitation or precipitation.
4. The appearance of the granules is required to be smooth and has a certain hardness. The mutual friction does not cause the separation of the drug layer from the carrier.
At the time of purchase, you must also focus on the name of the pesticide on the product label description. Active ingredient content, date of manufacture (production batch number). 1 The name of the pesticide includes the product name and the common name of the product. For pesticides that have only the product name and no common name (mostly some profitable compound with a strange product name and usual composition), it is best not to buy it. 2 Do not buy if there is no active ingredient. 3 If the quality guarantee period is exceeded, the efficacy or failure will be reduced. The shelf life of powder, emulsifiable concentrate and water lotion is 3 years, 2 years and 1 year respectively. In addition, be careful not to buy non-manufacturers, indicating that there are traces of alterations, as well as pesticides that are damaged or leaky in packaging.
Second, the appearance inspection and sampling identification 1. The appearance of the emulsifiable concentrate is dark brown or light brown transparent liquid, no delamination, no turbidity, no precipitation, no crystallization. Take a little drop into the water, it can quickly spread, cloud-like, a little stirring to form a uniform and stable emulsion, no oil on the water surface, no sediment at the bottom of the water.
2. The appearance of the water agent is transparent and there is no precipitation or impurities.
3. The appearance of powder and wettable powder requires loose texture, no agglomeration, high fineness and uniform color. Use your thumb and forefinger to lick some fine powder. If the powder is loose, it will show good dryness. If it is stuck together, it will be wet or the water content will be too high, and the quality will be affected. The wettable powder is put into water, shaken or slightly stirred to become a uniform emulsion liquid, and the powder is suspended in water without precipitation or precipitation.
4. The appearance of the granules is required to be smooth and has a certain hardness. The mutual friction does not cause the separation of the drug layer from the carrier.
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Commonly used distance measurement methods include tape measure distance and photoelectric distance measurement. The measuring distance of a tape measure is measured along the ground using a tape-like ruler that can be rolled up, which is a direct measuring distance. Photoelectric ranging is to use an instrument to transmit and receive modulated light waves between two points, and measure the distance according to its propagation speed and time. It belongs to electronic physical ranging. Photoelectric ranging is indirect ranging.
Inch Tape Measure,Tape Ruler Measurements,Length Tape Measure,1 Inch In Tape Measure
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