An analytical balance is a class of precision balance designed to measure small mass in the sub-milligram range (sensitivity of milligram). The measuring pan of an analytical balance is inside a transparent enclosure with doors so that dust does not c

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An analytical balance is a class of precision balance designed to measure small mass in the sub-milligram range (sensitivity of milligram). The measuring pan of an analytical balance is inside a transparent enclosure with doors so that dust does not collect and so any air currents in the room do not affect the balance's operation. This enclosure is often called a draft shield. Illustration originally captioned: Antique diamond scale, made by Eimer & Amend, New York, the laboratory instrument manufacturer, 1927.

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