Weighing of liquids

Corrections required when weighing volumetric flasks are somewhat different than straight volumetric readings. Both single- and double-pan balances have four common parameters which can affect the accurate weighing of liquids, but the single-pan balance has one separate parameter of its own. The common parameters are water density, glass expansion, and the buoyancy effect. 

Observe special precautions (see Section 2E-6) for the weighing of liquids. 

The automation of the weighing operation is virtually indispensable, particularly with solid samples, although it also simplifies to a great extent the weighing of liquids, which is difficult to automate by other methodologies. 

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