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Routine Testing of Laboratory Balances - how to do It correctly
Routine testing of laboratory balances by the user is essential to uncover malfunctions early and eliminate inaccuracies that would otherwise go undetected until your next service calibration. More and more laboratories are realizing that it’s both less expensive and more efficient to build quality into laboratory results from the start, rather than discovering problems later on.
Take a look at the short guide which explains the four pillars of successful balance testing:
The guide provides easy-to-follow material which outlines how often to test, how to test and which weights to use to ensure proper balance function. Furthermore, links to helpful tools and complementary information are provided.
Put routine balance testing into practice!
It pays off to build quality into laboratory results from the start, rather than discovering problems later on. Put routine balance testing into practice and ensure your weighing results are accurate each and every day.
Why is routine testing of laboratory balances so important?
Balances play a critical role in research, development, quality assurance and production. However, errors in weight measurements cost time and money, and violations of legal requirements may even cause damage to health and/or the environment. Maintaining and ensuring the performance of a device and reducing the risk of it being outside process tolerances requires the correct setting of the instrument and regular calibration by the service provider. In-between those service intervals, the user should perform regular routine tests to uncover malfunctions early and eliminate surprises at the next calibration service.
In many cases, defining routine test frequencies, adequate procedures and proper staff training can be a challenging and time consuming task, tying up valuable resources.
Routine tests may include sensitivity, repeatability and eccentricity tests using appropriate calibrated test weights. Tolerances or warning and control limits depend on the weighing tolerance for the process in question. Warning limits indicate when a device is nearing an out-of-specification condition. Control limits alert you to when the device is no longer deemed fit for purpose.
Routine testing of lab balances in-between scheduled calibrations helps to maintain accuracy by ensuring early detection of non-conformance with weighing process requirements so that corrective action can be taken in a timely manner.