2 General and Common Laboratory Equipments

• Borosilicate glass, also known as Pyrex and Kimax, is the most commonly used glassware and is used for heating and sterilization purposes.
• Borosilicate glass is characterized by a high degree of thermal resistance and low alkali content.
• Boron-free glassware is a type of soft glass with high resistance to alkali and its thermal resistance is less as compared to borosilicate glass.
• Corex is a type of borosilicate glassware produced by Corning.
• Vycor is a type of borosilicate glassware produced by Corning.
• Teflon and PDUF are examples of fluorocarbons.
• Corian, Epoxy resins, ABS, Polyetherimide are examples of labware plastics.
• Flint glass is made up of soda-lime glass and a mixture of Calcium, Silicon, and Sodium Oxides.
• Polyethylene and Polypropylene are examples of plastic resins.
• Flint glass has poor resistance to high temperature.
• Nylon, Acetol, Polycarbonate, Polystyrene, and Polyphenylene Oxides are examples of engineering resins.
• The piston in an air-displacement pipette does not come in contact with the liquid.
• Keeping your finger on the end of the pipette, gently move it to the waste container.
• Air-displacement pipettes rely on a piston for suction creation to draw the sample into a disposable tip.
• Dispense/dilutor pipettes obtain from a common reservoir and combine sampling and dispensing functions.
• Touch the tip to the inside of the container, lift your finger off the end and allow the liquid to drain out of the pipette.
• A pipette associated with only one volume (fixed volume) or able to select different volumes is known as a micropipette or macropipette.
• Positive-displacement pipettes do not require a different tip for each use.
• Positive-displacement pipettes are operated by moving the piston in the pipet tip or barrel, like a hypodermic syringe.
• Triangular beam analytical balance is a type of balance used in laboratories.
• Hold the pipette in this position for a few seconds after it stops draining.
• Sahli - Helli ge Pipette • Lang - Levy Pipette • RBC and WB C Pi p ette • Kik and Overflow Pipette