How to convert 15 mg/kg to ppm.
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mg/kg to ppm to %
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Our forum has been available for many years. In September 2014 we decided to switch it to read-only mode. Month after month we saw less posts with questions and answers from real people and more spam posts. We were spending more and more resources cleaning the spam until there were less them 1 legitimate message per 100 spam posts. Then we decided it's time to stop.
All the posts in the forum will be available and searchable. We understand there are a lot of useful information and we aren't going to remove anything. As for the new questions, you can always ask them on convert-me.com FaceBook page
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Re: mg/kg to ppm to %
by Guest » Fri Mar 14, 2008 7:02 pm
macoolit wrote:How to convert 15 mg/kg to ppm.
Help help help.... urgent request!!!!
Thanks
There are 1 million mg in 1 kg, so 15 mg/kg IS 15 ppm (by weight).
Note that ppm is a vague, poorly defined term. It can express a ratio by weight, volume, or mole fraction. Which "flavor" of ppm is meant should ALWAYS be specified. If you meant ppm by volume or mole fraction, there is not enough info.
In fact, both NIST (SP811) and ISO publications deprecate ppm in favor of terms that clearly specify the units such as mg/kg, µL/L, or µmol/mol. There is NO ambiguity with those.
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Re: mg/kg to ppm
by Dirtman » Fri Dec 10, 2010 7:27 am
JerryCohen wrote:Convert 3mg/kg to ppm
3mg/kg = 3 ppm (by weight). Re-read the post by Guest.
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Re:mg to mg/kg
by robertdadeboe » Mon May 09, 2011 6:26 pm
help me convert milligram to milligram per kilogram
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