Calibration of Hardness Tester : Pharmaguideline

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Calibration of Hardness Tester

Learn how to verify the performance of Hardness Tester used to check the hardness of tablets.

PROCEDURE

  • Take out the force gauge to be calibrated and hold vertically up. 
  • Adjust the zero on the force gauge. 
  • Standard Weights are then applied to the hook of force gauge and measure the tension of the spring on the force gauge. 
  • When 1 kg of standard weight is applied, scale on the force gauge should also show 1 kg tension produced from the initial point where the pointer is adjusted. 
  • Adjust the zero on the force gauge again. 
  • Follow the same procedure for other weights. 
  • The test to be carried out for 1.0 kg, 2.0 kg, 5.0 kg, 10.0 kg, 20.0 kg & 30.0 kg standard weights. 
Tolerance: ± 0.25 kg / ± 0.1 kg
Frequency: Once in 6 months.
Maintenance / Repair: When the instrument does not comply with the requirement specified above; the instrument should be labeled as “Out of Calibration” and should get repaired/ serviced.
After repairing/ servicing the instrument before taking for use, the instrument must be calibrated as per the above-mentioned procedure.

QUALITY ASSURANCE DEPARTMENT
CALIBRATION REPORT OF HARDNESS TESTER
Reference – 
Date -


Frequency
Instrument No. 


Make – 
Model –


CALIBRATION OF FORCE GAUGE :
Hold vertically up the force gauge to be calibrated. Adjust the zero on the force gauge. Apply the standard weights to the hook of force gauge and measure the tension of the spring on the force gauge.

Sr. No.Weight Applied (kg)Initial Reading on Force GaugeFinal Reading on Force GaugeDifference

1
1.0




2
2.0




3
5.0




4
10.0




5
20.0




6
30.0





Conclusion : Calibration is satisfactory / not satisfactory.

Next Calibration Due On :
Done By :
Date :
Checked By :
Date :















Ankur Choudhary is India's first professional pharmaceutical blogger, author and founder of pharmaguideline.com, a widely-read pharmaceutical blog since 2008. Sign-up for the free email updates for your daily dose of pharmaceutical tips.
.moc.enilediugamrahp@ofni :liamENeed Help: Ask Question


2 comments: Post Yours! Read Comment Policy ▼

  1. I recently came accross your blog and have been reading along. I thought I would leave my first
    comment. I dont know what to say except that I have enjoyed reading. Nice blog. I will keep
    visiting this blog very often. I am an Force gauges calibration.
    I feel great after reading this information. Please make update I will be regular rss to this site.
    calibration companies in chennai

    ReplyDelete
  2. Could you give the reference of this method below or above your posts please?
    because what we do is always based on reference.

    Thank you so much.

    ReplyDelete

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