1.0 OBJECTIVETo calibrate the equipment for reliable and accurate results.
This procedure is applicable to calibrate box compression strength tester, installed in packing material testing area.
3.0 RESPONSIBILITY3.1 Doing : Technical Assistant / Executive
3.2 Checking : Executive /Manager
4.0 ACCOUNTABILITYHead of the department.
5.0 PROCEDURE5.1 Frequency : Once in a month
Semi auto calibration :
5.1.1 Operate the instrument as per S.O.P.
5.1.2 On zero load, press ‘ZERO’ on the digital indicator.
5.1.3 Press and hold the ‘CAL’ button, situated at the rear of the indicator. The display will show 100 kg. Now slowly place 100 kg cast iron weight in any combination.
5.1.4 Press the ‘CAL’ button again. The display will show CAL – F. This denotes completion of calibration. Press the ‘CAL’ button once again. The display should show 100 ± 1kg.
5.1.5 Note down the observation in Annexure – I.
5.1.6 Remove the cast iron weights carefully.
5.2 Manual check calibration.
5.2.1 After completion of semiauto calibration take out 20 kg each cast iron weight from 100 kg & note the weight for 80 kg calibration. Similarly take out gradually each 20 kg of weight one after other & note the weight for 60, 40 & 20 kgs calibration.
5.2.2 Note down the observation in Annexure – I.
5.3 If instrument found out of calibration follow the SOP for Out of Calibration.
Related: SOP for Cleaning of Box Compression Strength Tester
6.0 ABBREVIATIONS6.1 SOP - Standard Operating Procedure
6.1 kg - kilogram
QUALITY CONTROL LABORATORY
CALIBRATION REPORT OF BOX COMPRESSION STRENGTH TESTER
DATE OF LAST PERFORMANCE DONE
NEXT DUE FOR
SEMI AUTO CALIBRATION
± 1 Kg
MANUAL CHECK CALIBRATION
± 1 Kg
Ankur Choudhary is India's first professional pharmaceutical blogger, author and founder of Pharmaceutical Guidelines, a widely-read pharmaceutical blog since 2008. Sign-up for the free email updates for your daily dose of pharmaceutical tips.
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