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Analytical Chemistry Lab Questions: Calibration of Volumetric Glassware

Glasswates are sometimes designated as class A or B. what class will you use for more accurate results? Provide a justification for your answer.

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Glasswares are the utensils required for analytical purpose to measure and caliberate the amount of solution to prepare the solution with required concentration.

The required concentration measured in terms of pH.

The glasswares fall under the classification of claa A and class B. These glass wares are obtained experimentally from ASTM which indicate its tolerance towards volumetric stress. ASTM is an international organization such as ISO and approves the quality of the glass wares for lab use.

Class A glass wares are the first purpose and made of fresh glass having accurate measurement while class B wares obtained from pre used glasses generally having ordinary measurement and used for general purposes.

The tolerance of class A is good in comparison to class B wares and thus Class A wares are used more frequently in lab for practice purpose.

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