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  • Take the Right Measures When Selecting a Lab Balance 

Take the Right Measures When Selecting a Lab Balance 

Jul 18 2014 Read 1319 Times

A balance is an integral component of lab work, and choosing the correct equipment is essential to efficient performance and obtaining accurate results. There are many options and considerations in selecting the right lab balance for the job.


When it’s time to purchase a new balance, the first step is to think about the types of applications to be performed. What do you need the balance to do and where will it be used? Will you need to connect it to other equipment? Some typical lab applications that might use a balance include testing, research, and field applications.


Readability is the smallest division a balance can display. Every application has a requirement for the level of precision in results. If you are weighing chemicals to the nearest 10mg (0.01g), a balance with 0.001 readability is recommended.


You’ll need to know the capacity necessary for the job to be performed. Capacity is the maximum weight the balance can weigh. When calculating capacity, remember to include the weight of any containers you might use.


Most balances are capable of weighing in different units. Certain applications require specific weighing units. For example, scientific laboratory applications typically require grams and milligrams, while food applications might require ounces. Make a note of the units of measure necessary for your task.


The type of application can dictate pan size. The weighing pan must be large enough to accommodate the items being weighed, along with the container that will be holding them during weighing. The location of the balance also can play a part in choosing a pan size; space restrictions might mean opting for a smaller platform.


Other important considerations include the need for internal/external calibration; below-balance weighing; dynamic weighing; USB/RS-232 connection; specific gravity calculations; lockdown capabilities; and plastic/metal housing.

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