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Large Tank Scales Calibration

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Gracezy

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Posted 28 April 2022 - 11:34 PM

Hi Team,

 

I understand we have to do daily calibration for our scales per BRC requirement.

However, we have 1,300 gallons large tank that is being installed on the scales platform (on the ground).

 

We will have the service come in to inspect and calibrate quarterly. The tank is very big and it has very low risk of scale being off.

Would this calibration service records be sufficient for the requirement?

 

Please advise.


Edited by Gracezy, 28 April 2022 - 11:35 PM.


pHruit

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Posted 29 April 2022 - 08:12 AM

The BRC standard doesn't specifically mandate daily calibration, or daily verification checks. As with most things BRC, it wants this to be based on risk-assessment ;)

 

Are the scales underneath the tanks used in anything relating to a CCP, to legality (e.g. fill weights), or anything that is critical to quality? If not, then it should be entirely acceptable that this is not something that needs daily verification.

With a new set of scales you don't have the historical data to show that e.g. the "historical reliability" criteria in the interpretation guide under clause 6.4.2 is met, but nature of use and manufacturer's recommendations are also given as valid considerations for your calibration checks.

I'd therefore suggest talking to the manufacturer to get their recommendations based on their experience with that model of scales, ideally in writing, as you can then use this as the basis for the frequency you're going with.

 

FWIW I've got similar tank-on-scales setups and no BRC auditor yet has had an issue with us not doing a daily verification check on it ;)



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Gracezy

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Posted 29 April 2022 - 04:49 PM

 
Hi pHruit,
 
Thank you for your advice. The scales underneath the tanks are not used in anything relating to a CCP.
If there are large amounts of overrun product, that how we know the scales must be off.
 
I’m so glad to hear that this could be acceptable for not performing the daily verification in this case.
I am always getting used to SQF requirements and I'm new to BRC. 
 
Can you please give some example of risk assessment that I should do?
 
That's what I told my boss too about asking the service/manufacturer to get there recommendation based on their experience with that model of scales or how they maintain their scales accuracy.
 
 
"FWIW I've got similar tank-on-scales setups and no BRC auditor yet has had an issue with us not doing a daily verification check on it "
This is the best news ever!
 
Thank you so much! :)


pHruit

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Posted 01 May 2022 - 08:21 AM

Have you done a risk assessment for your other calibration and verification activities for scales, flow meters, temperature probes etc?
Ideally you'd want to follow the same format as that.

It could fairly easily be phrased in a "likelihood x severity = risk" format I think, as your position is broadly that the likelihood is low, and that the severity in the event of drift from calibration is also low. The former is (hopefully/ideally) based on the manufacturer's recommendations around calibration frequencies, and the latter is due to the non-critical (in a food safety / quality / legality sense) application for which the scales are used. You'd then document these considerations within the risk assessment.



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Posted 09 May 2022 - 10:56 PM

Yes! we perform those risk assessments.

Thank you so much for your help, pHruit .

I'm on it!





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