What should be paid attention to in the use of glass dropper

What should be paid attention to in the use of the glass dropper 1) the holding method is to clamp the glass tube part with the middle finger and ring finger to maintain stability, and use the thumb and index finger to squeeze the rubber head to control the inhalation or drop dosage of the reagent 2) When the rubber head dropper is filled with liquid, it cannot reach into the container, let alone touch the container 3) Do not put it upside down or on the table It should be inserted into a clean bottle or test tube 4) Wash with water immediately after use It is forbidden to suck another reagent without cleaning 5) The rubber cap and the glass dropper shall be tightly combined without air leakage If the rubber cap is aged, it shall be replaced in time Among them, Zui is prone to make mistakes by extending the rubber head dropper below the test tube mouth In addition, it should be noted that the rubber head dropper should be vertical when adding reagents to the test tube Danyang RIKANG glass products Co., Ltd
2013.08.10