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#1
05-09-2006, 07:07 AM
 Unregistered Guest Posts: n/a
mg/kg to ppm

Convert lead concentrations in ash from mg/kg to ppm
#2
05-09-2006, 10:10 PM
 Robert Fogt Administrator Join Date: Dec 2005 Location: Seattle, WA Posts: 3,339 Rep Power: 12
Re: mg/kg to ppm

mg/kg is the same as ppm, so no conversion will be necessary.

mg/kg = 0.001/1000 = 0.000001 = 1/1,000,000 = ppm
#3
09-06-2007, 02:35 AM
 Unregistered Guest Posts: n/a
Re: mg/kg to ppm

Quote:
 Originally Posted by Robert Fogt mg/kg is the same as ppm, so no conversion will be necessary. mg/kg = 0.001/1000 = 0.000001 = 1/1,000,000 = ppm
thanks a lot
#4
04-03-2009, 10:32 AM
 Mike Guest Posts: n/a
Re: mg/kg to ppm

mg/kg is not equal to ppm. The conversion depends on the density of both substances. In other words, mg/kg is not mg of water to kg of water, it is mg of x in kg of y.
#5
04-03-2009, 01:00 PM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 8,701 Rep Power: 17
Re: mg/kg to ppm

Quote:
 Originally Posted by Mike mg/kg is not equal to ppm. The conversion depends on the density of both substances. In other words, mg/kg is not mg of water to kg of water, it is mg of x in kg of y.
Ppm on a mass over mass basis is exactly mg/kg. You might want to look at sections 7.10.3 and 8.6 of NIST SP811.
#6
07-21-2009, 12:14 PM
 Unregistered Guest Posts: n/a
Re: mg/kg to ppm

Quote:
 Originally Posted by JohnS Ppm on a mass over mass basis is exactly mg/kg. You might want to look at sections 7.10.3 and 8.6 of NIST SP811.
60 mg/kg to 100 ppm
#7
04-03-2009, 06:45 PM
 Mrs X can't count, can't spell! Join Date: Feb 2006 Location: New Zealand Posts: 2,288 Rep Power: 11
Re: mg/kg to ppm

Quote:
 Originally Posted by Mike mg/kg is not equal to ppm. The conversion depends on the density of both substances. In other words, mg/kg is not mg of water to kg of water, it is mg of x in kg of y.
Hi Mike, for your example here, remember that it is mg of x in kg of (x+y). If you have a question, you are welcome to ask it.
#8
05-06-2009, 11:25 AM
 Unregistered Guest Posts: n/a
Re: mg/kg to ppm

mg/kg to mg/l?
#9
10-16-2011, 02:53 PM
 Unregistered Guest Posts: n/a
Re: mg/kg to ppm

Quote:
 Originally Posted by Robert Fogt mg/kg is the same as ppm, so no conversion will be necessary. mg/kg = 0.001/1000 = 0.000001 = 1/1,000,000 = ppm
How many mgl is 3ppm
#10
10-16-2011, 05:00 PM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 8,701 Rep Power: 17
Re: mg/kg to ppm

Quote:
 Originally Posted by Unregistered How many mgl is 3ppm
Ppm is a ratio, 3 parts of one thing per million parts of mixture. So it will depend on how much mixture you have. The component that is 3 ppm will then be three-millionths of the total mixture.

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