Weighing scales should be carried out with the test sample three-point calibration, calibration value should be covered by the daily use of the weighing range, the maximum daily use should be chosen closest to the middle value, the minimum weight specification for verification.

testing samples weighing scales should be carried out using 3 point calibration, checksum values should cover daily use weight, should choose the one close to daily use the largest value, intermediate values, the minimum value of weight specifications for calibration.

The weighing examination sample should carry on three verifications with the balance, the verification value should cover the daily use weighing scope, elected with the closest daily use maximum value, the intermediate quantity, the minimum value specification weights carries on the verification.

Balance for weighing test sample should be three-point check, checksum should cover day-to-day use weighing range, should select the closest to the everyday use maximum, median, minimum weights for verification of the specifications.

Balance for weighing test sample should be three-point check, checksum should cover day-to-day use weighing range, should select the closest to the everyday use maximum, median, minimum weights for verification of the specifications.