ppm

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ppm

Post by Newbie Bil » Wed, 18 Aug 2004 01:56:29



Various test equipment lists  'ppm (mg/L)'.  This does not make any sense to
me since this is mixing a weight with a volume UNLESS one milliliter of
water (or some substance) weighs one gram. 1000 milligrams x 1000
milliliters=1,000,000 mg per liter.  Is this true?  While I'm at it: does
one ounce of water weigh one ounce?
Bill
 
 
 

ppm

Post by Jim Humphrie » Wed, 18 Aug 2004 07:46:47


You got it.  One ml of water weighs one gram.  We don't use ounces any more
here.
--
Jim and Sara Humphries, Victoria, BC

Quote:
> Various test equipment lists  'ppm (mg/L)'.  This does not make any sense
to
> me since this is mixing a weight with a volume UNLESS one milliliter of
> water (or some substance) weighs one gram. 1000 milligrams x 1000
> milliliters=1,000,000 mg per liter.  Is this true?  While I'm at it: does
> one ounce of water weigh one ounce?
> Bill

 
 
 

ppm

Post by RichToyBo » Wed, 18 Aug 2004 10:12:19


One of the provlems with the English set of units is one liquid ounce of
water does not weigh one ounce.  16 fluid ounces is a pint and 8 pints is a
gallon.  16 ounces is pound and a gallon of water weighs 8.33 pounds instead
of 8.

--
RichToyBox
http://www.geocities.com/richtoybox/index.html

While I'm at it: does one ounce of water weigh one ounce?

Quote:
> Bill

 
 
 

ppm

Post by dr-s.. » Wed, 18 Aug 2004 11:37:19


yes. water is the standard of 1 cc = 1 ml = 1 gram
it is soooo much easier to use %.  that is grams per 100 ml.  
so 3% is 3 grams of something in 100 ml or 0.1 liter
Ingrid

Quote:

>Various test equipment lists  'ppm (mg/L)'.  This does not make any sense to
>me since this is mixing a weight with a volume UNLESS one milliliter of
>water (or some substance) weighs one gram. 1000 milligrams x 1000
>milliliters=1,000,000 mg per liter.  Is this true?  While I'm at it: does
>one ounce of water weigh one ounce?
>Bill

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ppm

Post by Rodney Pon » Thu, 19 Aug 2004 01:04:12


Quote:

>One of the provlems with the English set of units is one liquid ounce of
>water does not weigh one ounce.  16 fluid ounces is a pint and 8 pints is a
>gallon.  16 ounces is pound and a gallon of water weighs 8.33 pounds instead
>of 8.

That's 20 fluid ounces to a pint, at least in England :-)

Which is lighter, a pound of filter beads or a pound of feathers?

--
Regards - Rodney Pont
The from address exists but is mostly dumped,
please send any emails to the address below
e-mail  ngpsm4 (at) infohitsystems (dot) ltd (dot) uk

 
 
 

ppm

Post by Crash » Thu, 19 Aug 2004 01:53:01



Quote:

> >One of the provlems with the English set of units is one liquid ounce of
> >water does not weigh one ounce.  16 fluid ounces is a pint and 8 pints is
a
> >gallon.  16 ounces is pound and a gallon of water weighs 8.33 pounds
instead
> >of 8.

> That's 20 fluid ounces to a pint, at least in England :-)

> Which is lighter, a pound of filter beads or a pound of feathers?

Pound of lead or pound of gold?
--
Crashj
 
 
 

ppm

Post by ajame.. » Thu, 19 Aug 2004 04:52:38


Quote:




> > Which is lighter, a pound of filter beads or a pound of feathers?

> Pound of lead or pound of gold?
> --
> Crashj

Pound of Gold....
 
 
 

ppm

Post by Newbie Bil » Thu, 19 Aug 2004 05:16:52


Now your just confusing the issue:), since you guys have money called a
pound which probably doesnt weigh an ounce or a gram, but which can probably
be exchanged for a pint either Am or Eng.
Bill


Quote:

> That's 20 fluid ounces to a pint, at least in England :-)

> Which is lighter, a pound of filter beads or a pound of feathers?

> --
> Regards - Rodney Pont
> The from address exists but is mostly dumped,
> please send any emails to the address below
> e-mail ngpsm4 (at) infohitsystems (dot) ltd (dot) uk

 
 
 

ppm

Post by Rodney Pon » Sat, 21 Aug 2004 17:24:32


Quote:

>Now your just confusing the issue:), since you guys have money called a
>pound which probably doesnt weigh an ounce or a gram, but which can probably
>be exchanged for a pint either Am or Eng.

Me confusing the issue... it depends on which side of the pond you are
:-)

As for the money pound fifty of them can weigh just slightly more than
one of them or one of them can weigh hundreds of times more than fifty,
take your pick :-)

One of them certainly couldn't be exchanged for a pint of some common
things though any more. I remember a landlord telling me a pint would
never be a pound because people wouldn't stand for it, showing my age
now :-)

--
Regards - Rodney Pont
The from address exists but is mostly dumped,
please send any emails to the address below
e-mail  ngpsm4 (at) infohitsystems (dot) ltd (dot) uk