mg to ppm

by **Allan Lam** » Thu Jun 07, 2007 1:34 pm

just want to know :

5 mg/ kg = 5 ppm ?

by **buckee** » Thu Jun 07, 2007 9:44 pm

1 mg = 1/1000th of a kg, so I would think 5 mg would be 5 parts per thousand.

And 5 parts per thousand equates to 5000 ppm.

by **Guest** » Thu Jun 07, 2007 11:59 pm

1 mg = 1/1000 of a gram, not a kilogram
and 1 kg = 1000 g, so, yeah
1 mg/kg = 1 ppm by weight.

by **buckee** » Sat Jun 09, 2007 1:20 am

The last poster, "Guest" is correct. I apologize for my error.

by **Guest** » Mon Jun 11, 2007 1:07 pm

Allan Lam wrote:just want to know :

5 mg/ kg = 5 ppm ?

Thanks for all. I think 5 mg/kg = 5 ppm is correct.

Convert-Me.Com - online units conversion