SOP for Daily Verification of Weighing Balance

OBJECTIVE

To lay down the procedure for daily verification of all weighing balance

SCOPE

This SOP is applicable for the verification of all weighing Balances, at XYZ Ltd.

RESPONSIBILITY

QC Officer

PROCEDURE

• Select the standard calibrated weights for various balances based on the capacity and operating range of the balance as mentioned below and check the calibration status.
• Before verifying the balance, clean the weighing platforms and pans with a dry mop. Ensure that the balance rests evenly, which can be ensured with the help of a sprit level.

• Adjust the balance to zero. Place the calibrated standard weight one by one on the weighing platform/pans at the “*” marked places shown in the following diagram and check the readings. The difference should not be more then specified least count. If it is stable at all working points record the point “E” observation in the annexure.

ALSO READ: SOP for Operation and Calibration of Contech Precision Balance

• If it conforms to acceptance criteria, affix the status label “O.K” with the date.
• Always use standard weights and balances, which are certified by the Weights and Measures department.
• Selection of Standard Weights for various balances.

• If it does not conform to acceptance criteria, the maintenance department shall be informed of corrective measures and a status label “under maintenance” shall be affixed.

ABBREVIATIONS

O.K.: All correct

REFERENCES

Nil

ANNEXURE

Annexure I – Balance weight check record

REVISION HISTORY

Nil

ALSO READ: SOP for Operation of the Dhona 200D Balance