Failure method for identifying seven pesticides

First, intuitive method: For powder pesticides, first look at the appearance of the drug, if it is obviously damp and agglomerate, smell is not strong or have other odors, and can be handcuffed into groups, these drugs basically failure; for emulsion pesticides, the first bottle If it is left standing, if the liquid is cloudy or delaminated (ie oil-water separation), precipitates are formed or the flocs are suspended, and the pharmaceutical agent has failed.

Second, the heating method: suitable for powder pesticides. Take 5-10 grams of pesticide and put it on a piece of metal to heat it. If there is a lot of white smoke and there is a strong pungent odor, it means that the medicine is good. Otherwise, the instructions have expired.

Third, floating method: suitable for wettable powder pesticides. Take a cup of 200 grams of clear water and weigh 1 gram of pesticide. Spread it gently and evenly on the surface of the water and observe carefully. Wet and soluble in water within 1 minute are un-failed pesticides, otherwise they are failure pesticides.

Fourth, suspension method: suitable for wettable powder pesticides. Take 30-50 grams of pesticide, place it in a glass container, add a small amount of water to make a paste, then add 150-200 grams of water to mix well, and let stand for 10 minutes to observe. The pesticide without failure is good in solubility and suspended in the liquid. The fine particles are small, the sedimentation rate is slow and the amount of precipitation is small, and the failure of pesticides is the opposite.

Fifth, the oscillation method: suitable for emulsion pesticides. For the emergence of pesticides in the oil and moisture layer, shake the vial vigorously and observe after standing for one hour. If delamination still occurs, the pesticide has been degraded.

Six, hot-melt method: apply emulsion pesticides. Put the precipitated pesticide in a bottle and put it in warm water (the temperature of the water should not be too high, preferably 50-60°C). Observe after 1 hour. If the precipitate dissolves, it indicates that the chemical has not yet failed. After the precipitate is dissolved, it can continue. Reuse; If the precipitate is difficult to dissolve or insoluble, it means that it has failed.

VII. Dilution: Suitable for emulsion pesticides. Take 50 grams of pesticide, place it in a glass bottle, add 150 grams of water, and shake it for 30 minutes. If the liquid is uniformly milky white, and there is no slick oil, there is no sedimentation, indicating that the drug is good. Otherwise it is a failure of pesticides, the more the upper floating oil, the worse the drug.

Bath chair is used during taking bath for the movement difficulties of the disabled, patients, the elderly and infirm children. The main components from the chair includes frame, seat plate. The Stand plate could withstand 100kg static load, backrest could load 45kg static load and it shall not produce permanent deformation. Because often contacting with the patient's body surface, so before using normally we have one time regular cleaning, if necessary, make disinfectant disinfection when replace the patient, keep dry and clean, no calibration. Appropriate maintenance and maintenance can extend the life of the bath chair.

 

Rehabilitation Products is our main products. We have get the CE, ISO, FDA. As a experienced company, ORIENTMED has a strong ability to help our clients to get the registration and short the delivery.

 

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