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Chemical and biological cleaning of laboratory wares
Chemical cleaning is achieved by cleaning the glass wares first physically using appropriate cleaning detergent or reagent, then rinsing the glassware with distilled or deionized water and finally rinsing the glass ware with the solution in which the apparatus is intended to be used for .
Biological cleaning involves the application of sterilization methods.it is used for cleaning laboratory items contaminated with microorganisms
Testing for cleanness in laboratory wares
To test whether the apparatus is thoroughly clean, fill the apparatus with distilled water, if water flows out smoothly in unbroken film, then it means the apparatus is clean but if it flows in droplets then the apparatus is dirty and must be cleaned again.