Can the calibration period of a laboratory electronic balance be self-defined?

Can I specify the calibration period of a laboratory electronic balance? General equipment calibration after the certificate will recommend a calibration a year, some people say that some equipment does not need to be calibrated every year
.

It is best to specify the calibration cycle yourself, because the calibration cycle is related to
the use of the equipment.

The calibration period can be determined by yourself, but at the same time refer to the domestic metrology requirements (if you are applying for CNAS approval).

In fact, in the standard (ISO/IEC 17025) 5.
10.
4.
4 clearly states that the calibration certificate should not contain a recommendation for calibration intervals, except if there is an agreement with the customer or is expressly stipulated by law
.

Therefore, the equipment calibration cycle can be adjusted, but only if you give a reasonable basis for the adjustment, otherwise, the audit will still not be accepted
.

The state has regulations that during the calibration cycle, equipment maintenance, replacement of key parts, instrument migration, etc.
should be recalibrated, and the period verification of equipment should be carried out during the calibration cycle to ensure the steady state and accuracy
of the equipment.

Laboratory electronic balances can customize the calibration cycle according to the characteristics of the instrument, the frequency of use, etc.
, as long as the equipment is in the correct state of use and can achieve the expected use
.

Measures such as period checks are often required to prove that the instrument is in good condition
.

However, the longer the calibration period, the better, because the longer the time, the greater the
uncertainty.

Measurement calibration is an important part of improving the efficiency of the laboratory, and the determination of the electronic balance calibration cycle is a key part of the measurement work, the product quality and service quality play a very important role, in determining the calibration cycle of the measuring instrument, to the actual use of the measuring instrument after scientific analysis of the evaluation decision
.