CALIBRATION OF BALANCES

Outline.
1. Accommodation and environmental requirement for mass measuring machines
    1.1 Equipment and Materials Required

2. Calibration /Verification Procedure for Balances
   2.1 Classification of the Balance and Appropriate Test Weight Check
         2.1.1 Verification scale interval; actual scale interval
         2.1.2 Number of loading intervals and MPE at different range

   2.2 Pre-loading Test and Zero check

   2.3 Zero Adjustment Capacity Test

   2.4 Zero Check and Tare Mechanism

   2.5 Sensitivity of the Balance (for Mechanical Balance)

   2.6 Eccentricity

   2.7 Repeatability
        (Example: 1) Class I and II
                        2) Class III and IIII

   2.8 Departure from nominal value
         2.8.1 Increasing load test
         2.8.2 Decreasing load test

   2.9 Uncertainty calculation
         2.9.1 Type A and Type B

3. Interpretation of Results

4. Calibration Report Preparation Based on ISO 17025

5. Calibration/Verification Intervals

Duration: 24 hours