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Free chlorine measurement


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#1 Paul.Koyatti

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Posted 03 April 2018 - 02:13 AM

Hi Guys,

 

We process baby leaf salads and free chlorine measurement is one of our CCP.

Can anyone please advise if there is any reliable test methods apart from dilutions where by we can measure free chlorine levels > 10ppm.

 

Looking forward to your advises.

 

Regards

Paul



#2 Charles.C

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Posted 03 April 2018 - 03:31 AM

Hi Guys,

 

We process baby leaf salads and free chlorine measurement is one of our CCP.

Can anyone please advise if there is any reliable test methods apart from dilutions where by we can measure free chlorine levels > 10ppm.

 

Looking forward to your advises.

 

Regards

Paul

 

Hi Paul,

 

It may depend on the accuracy required. i assume not to titration methodology levels

 

Strips obviously do > 10ppm directly. Accuracy limited.

 

I normally use OPD and dilute.

 

One possibility from Google -

 

Attached File  chlorine meter.pdf   1.78MB   40 downloads


Kind Regards,

 

Charles.C


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#3 Scampi

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Posted 03 April 2018 - 01:08 PM

I agree with Charles---would depend on your level of accuracy required and the concentration you normally operate at

 

(we use dip strips)


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#4 FurFarmandFork

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Posted 03 April 2018 - 02:55 PM

Buy several brands of the dip strips and see which are easiest to interpret, I went through 6 before I found one that had limits I could work with AND was easy to interpret (none of this dark pink vs light red BS).


Austin Bouck
Owner/Consultant at Fur, Farm, and Fork.
Consulting for companies needing effective, lean food safety systems and solutions.

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#5 MsMars

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Posted 03 April 2018 - 06:26 PM

Dip strips are easiest.  Working in poultry processing, we also used these little meters for more exact measurements from wash cabinets: 

 

https://hannainst.co...e-chlorine.html



#6 Paul.Koyatti

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Posted 03 April 2018 - 11:37 PM

Thank you all for valuable advises.

Will try test strip method.



#7 tamtd

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Posted 04 April 2018 - 09:11 AM

Dear Paul

I think you should use Hach DR 900 for test.

Thanks






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