Chemical dropper (dropper) basic equipment for laboratories
with a tapered tube
and the other end has a rubber bulb attached. For use in vacuum solutions for use dropper of solution gradually drops , which can be used to prepare the solution. To adjust the volume of material to the desired or. Use the drop chemicals to react with each other precautions in using the dropper substance, it is not the tip of the dropper affect or touch the device or surrounding other irrelevant because it is contaminated. stain of impurity inside the dropper substance.
การแปล กรุณารอสักครู่..
