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Re: [ST] TAP the Collective
You shouldn't have said anything. I was really impressed for 30 seconds!
Jeremy Witt
Newbury Partners
(o) 603-893-3022
(c) 603-475-4228
-----Original Message-----
From: st-bounces@xxxxxxxxxxxxxxxxxxxx [mailto:st-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of STeve Duncan
Sent: Thursday, May 04, 2006 4:15 PM
To: ST@xxxxxxxxxxxxxx
Subject: Re: [ST] TAP the Collective
A rule of thumb that is most useful is: to convert ppm to percentage, move
the decimal point 4 places to the left. And, to convert percentage to ppm
move the decimal point 4 places to the right. Using this rule of thumb it is
easy to see that 124 ppm is the same as 0.0124% and that 0.5% is the same as
5,000 ppm.
a. 1 ppm = 1 mg/kg = 1 mg/1,000,000 mg.
b. 1 divided by 1,000,000 = 0.000001.
c. Convert to % by multiplying by 100.
d. 0.000001 x 100 = 0.0001%
e. Therefore, 1 ppm is the same as 0.0001%
--------------------------
PPM
Percentages
1 ppm = 1 mg/liter
1 ounce of sand in 31 ¼ tons of cement is 1 ppm
1 ppm = 1 microgram/ml
A book 1/16 inch is 1 ppm of a stack 1 mile high
1 ppm = .0001%
1 minute is 1 ppm of 1.9 years
Google is a wonderful thing :-)
Duncan
Donut
Baja, Oklahoma
>From: "Masiak, Richard" <Richard_Masiak@xxxxxxxxxxxxxxxx>
>Reply-To: ST@xxxxxxxxxxxxxx
>To: <ST@xxxxxxxxxxxxxx>
>Subject: [ST] TAP the Collective
>Date: Thu, 4 May 2006 15:11:15 -0400
>
>Any edumacated bretheren out there know how to correlate accuracy from ppm
>to +/- a percentage?
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