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Understanding Lab Test Reports


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#1 gazza1973

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Posted 19 April 2017 - 10:58 AM

Hi I was wondering if anyone can help understanding lab test reports.

 

I have been doing some end of life testing and one of the results has come back as 2.4x10^3. I don't understand what this is telling me if anyone could help that would be fantastic.

 

Thanks

Garry S


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#2 Charles.C

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Posted 19 April 2017 - 01:44 PM

Hi I was wondering if anyone can help understanding lab test reports.

 

I have been doing some end of life testing and one of the results has come back as 2.4x10^3. I don't understand what this is telling me if anyone could help that would be fantastic.

 

Thanks

Garry S

 

Hi Garry,

 

You may have to supply some more context regarding  the particular testing procedure you are referring to.

 

PS - Welcome to the Forum ! :welcome:


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Kind Regards,

 

Charles.C


#3 gazza1973

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Posted 19 April 2017 - 01:51 PM

Hi Charles,

 

Thank you for the welcome.

 

Regarding the results it was testing for Yeasts in cfu/g so and it was a muffin being tested .

 

Thanks for your support.

 

Garry S


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#4 Charles.C

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Posted 19 April 2017 - 03:36 PM

Hi Charles,

 

Thank you for the welcome.

 

Regarding the results it was testing for Yeasts in cfu/g so and it was a muffin being tested .

 

Thanks for your support.

 

Garry S

 

Hi Garry,

 

I'm a little confused.

 

By "end of life" did you mean shelf-life ?


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Kind Regards,

 

Charles.C


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#5 FurFarmandFork

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Posted 19 April 2017 - 04:19 PM

gazza1973

 

If your question is deeper see Charles' queries. However, if you just don't understand the notation, 2.4x10^3. cfu/g means that they found 2,400 yeast or mold colonies per gram of the product tested. It reads "two-point-four times ten to the 3rd power".

 

As to what implications that number has on the testing you were performing, we need a lot more information on why you were performing the testing, what the goals were, how the sample was collected/held, etc.


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QA Manager and food safety blogger in Oregon, USA.

 

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#6 gazza1973

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Posted 20 April 2017 - 07:53 AM

Hi Garry,

 

I'm a little confused.

 

By "end of life" did you mean shelf-life ?

Hi Charles,

 

Thank you for your reply it is end of shelf life, sorry it my slang on words.

 

Take care

 

Garry S


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#7 gazza1973

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Posted 20 April 2017 - 07:55 AM

gazza1973

 

If your question is deeper see Charles' queries. However, if you just don't understand the notation, 2.4x10^3. cfu/g means that they found 2,400 yeast or mold colonies per gram of the product tested. It reads "two-point-four times ten to the 3rd power".

 

As to what implications that number has on the testing you were performing, we need a lot more information on why you were performing the testing, what the goals were, how the sample was collected/held, etc.

Hi FurFarmandFork,

 

That is a fantastic help you are a star.

 

Thank you

 

Garry S


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#8 Parkz58

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Posted 26 April 2017 - 09:14 PM

For a little more information regarding cfu (colony forming units) and how they are expressed, check this out:

 

https://www.research...fu_for_bacteria


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#9 Charles.C

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Posted 26 April 2017 - 09:33 PM

For a little more information regarding cfu (colony forming units) and how they are expressed, check this out:

 

https://www.research...fu_for_bacteria

 

Hi Parkz,

 

Thks for the link. Good stuff.

 

I suspect the major OP problem was with the "^".

 

Now to perhaps be additionally followed by a query over the "log" :smile:


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Kind Regards,

 

Charles.C


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