# Help Interpreting Microbiological Test Results

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### #1 hygienic

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Posted 07 September 2010 - 11:15 PM

Hi:

How we read this 35 x 102 or 7 x 103 as a result of staph or coliform colonies count (for example ), I mean what is the meaning of 103 or 102 ?

Thanks

### #2 poppysnoss

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Posted 08 September 2010 - 03:57 PM

Hi:

How we read this 35 x 102 or 7 x 103 as a result of staph or coliform colonies count (for example ), I mean what is the meaning of 103 or 102 ?

Thanks

It is ten to the power of X.

The number is superscript basically states the number of zeros that exist after the initial digits.

ie 35 x 102 = 3500 cfu
7 x 103 = 7000 cfu

Hope this helps.

Pops

Edited by poppysnoss, 08 September 2010 - 03:59 PM.

### #3 Simon

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Posted 09 September 2010 - 10:53 AM

It is ten to the power of X.

The number is superscript basically states the number of zeros that exist after the initial digits.

ie 35 x 102 = 3500 cfu
7 x 103 = 7000 cfu

Hope this helps.

Pops

Thanks Pops.

A Linked In member of IFSQN also proposed this

Deborah Dryden • 35 x 102 is 35 x 10^2

i.e. 35 x 100 or 3500

7 x 103 is 7 x 10^3

i.e. 7 x 1000 or 7000

Hope this helps!

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### #4 hygienic

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Posted 09 September 2010 - 12:33 PM

It is ten to the power of X.

The number is superscript basically states the number of zeros that exist after the initial digits.

ie 35 x 102 = 3500 cfu
7 x 103 = 7000 cfu

Hope this helps.

Pops

Thanks alot pops .

Hygienic

### #5 hygienic

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Posted 09 September 2010 - 12:38 PM

Thanks Pops.

A Linked In member of IFSQN also proposed this

Hi Simon:

Thanks to quote this .

hygienic

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