Why would you want to weigh at all if your balance is not calibrated?
Balance or scale calibration is essential to achieve accurate weighing results. Ignoring this important service activity turns to measure into guesswork. In other words, it is negligent to weigh with a non-calibrated balance or scale.
The accuracy of balances and scales becomes less reliable over time. This is the result of normal wear and tear caused by regular use and external factors such as mechanical shocks or hazardous environments. This may lead to a rather quick degradation or deterioration over a longer time. Periodically scheduled balance calibration in combination with frequent routine testing greatly enhances the lifetime of your balance or scale and its weighing accuracy.