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bill1
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Unit of Measure for Volume Flow Rate of Gas

09/25/2009 1:50 PM

In the volume flow rate measurements which type of unit must be used: either "ml/min" and "cc/min" or there are some differences ?
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TVP45
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#1

Re: Unit of measure for volume flow rate of gas

09/25/2009 2:04 PM

Please say something about what is flowing. Read your previous post.

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RVZ717
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#2

Re: Unit of measure for volume flow rate of gas

09/25/2009 2:09 PM

Yes... Please clarify. Depends on how you intend to use the numbers, and how many unit conversion you wish to do.

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bill1
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#3
In reply to #2

Re: Unit of measure for volume flow rate of gas

09/25/2009 2:10 PM

SI units
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Anonymous Poster
#4

Re: Unit of measure for volume flow rate of gas

09/25/2009 2:29 PM

Isn't a cc and a milliliter the same thing?
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Mikerho
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#5
In reply to #4

Re: Unit of measure for volume flow rate of gas

09/25/2009 3:22 PM

Yes

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lyn
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#6
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Re: Unit of measure for volume flow rate of gas

09/25/2009 3:49 PM

I don't want to split hairs, but a cc of water only exactly equals a ml at 4 degrees C.

I know we're talking about gas here, but............................
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RVZ717
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#7
In reply to #6

Re: Unit of measure for volume flow rate of gas

09/25/2009 4:04 PM

Man... now i'm going to need these split ends trimmed off.

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#9
In reply to #6

Re: Unit of measure for volume flow rate of gas

09/25/2009 5:12 PM

I must disagree. mL and cc (cubic centimeter) are BOTH units of volume. I would agree that 1 mL/cc of water weighs 1 gram at 4ºC.

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lyn
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#11
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Re: Unit of measure for volume flow rate of gas

09/25/2009 6:08 PM

I stand corrected. You are right!

My humble apologies for misspeaking. A little knowledge is a dangerous thing.
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Mikerho
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#12
In reply to #11

Re: Unit of measure for volume flow rate of gas

09/25/2009 6:27 PM

I think we've all done it - I know I have!

Cheers

Mike

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#8

Re: Unit of Measure for Volume Flow Rate of Gas

09/25/2009 5:10 PM

Whoops, I'm talking about liquids here...
It all really depends on what is accepted by the relevant industry.
I customary use mls/min, L/h is commonly used for the same size of pump.
Just chill and go with the flow, it's not much effort to convert....
Del

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#10
In reply to #8

Re: Unit of Measure for Volume Flow Rate of Gas

09/25/2009 5:14 PM

bad pun - bad kitty!

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Steve S.
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#13

Re: Unit of Measure for Volume Flow Rate of Gas

09/25/2009 8:30 PM

Hmm when I measure gas flow it is not ml/min, it is million standard cubic feet per day, and it is ususally many millions.... the other option is standard cubic meters per hour, and ususally lots of them too...
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bill1
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#17
In reply to #13

Re: Unit of Measure for Volume Flow Rate of Gas

09/28/2009 4:35 PM

In the gas leakage testing of valve seats, the Sml/min and Scc/min are usually used; some flowmeter use Sml/min other flowmeter have Scc/min.

Referring to the SI (International System Unit) how is it correct to measure the gas flow rate? Sml/min or Scc/min ?
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#14

Re: Unit of Measure for Volume Flow Rate of Gas

09/25/2009 10:58 PM

Are you talking about only cc and ml (one and the same) or you are talking up on in general about selection of units?

If you want to measure the volume of some small quantity cc is OK, you should not use m^3. But if you want to measure volume of water in some dam.. totally different units will be needed, Using cc as measure is not non scientific, but certainly absurd.
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Osayed
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#15

Re: Unit of Measure for Volume Flow Rate of Gas

09/25/2009 11:12 PM

I would like to say that ml/min = cc/min = 10-6 m3/min = 10-3 l/min
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sb
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#16

Re: Unit of Measure for Volume Flow Rate of Gas

09/26/2009 1:08 AM

Don't you use NM3/min, SM3/Hr or similar for gas flow rates?

or in your case may be Nmm3/min or Smm3/min ?

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Users who posted comments:

Anonymous Poster (1); bill1 (2); gsuhas (1); lyn (2); Mikerho (4); Osayed (1); RVZ717 (2); sb (1); Steve S. (1); TVP45 (1); user-deleted-1105 (1)

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