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converting ug/L to ppm

converting ug/L to ppm
by Susan Hubbard on 10/10/05 at 21:10:55

Hi,

We're trying to find out how to convert ug/l to ppm.

Thanks,
Susan

Re: converting ug/L to ppm
by Robert Fogt on 10/15/05 at 00:26:30

That would actually depend on the substace. Every substance will have a different weight to volume conversion factor.

For pure water, which has a density of 1 kilogram/liter:
ug/L = ug/kg = ppb = 1/1000 ppm

So if it was pure water you would divide ug/L by 1000 to convert to ppm

Re: converting ug/L to ppm
by rajiv_ganguly on 11/10/05 at 10:46:17

u can convert from microgram/litre to microgram per metre cube andthen apply the following relationship:

ppm=[(microgram/metre cube)*(273+C)]/[12.187*(MW)]

where C= temperature in degree celsius(basically convert to kelvin)

MW=molecular weight of compound

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