How do I convert mg/l to ppm?

[hgsports]

Anyone know an easy way to do this?

Thanks!


John

 

[Bodine]

I believe that
50 ppm = 1meq/L =2.8dKH
You do mean meq/L ?

[ October 13, 2001: Message edited by: Bodine ]

 

[Anonymous]

It's a really tough formula.

1 ppm = 1 mg/l

 

[Bodine]

OOPS!!!
I see you do mean mg/l and not meq/L and tangirl is correct

 

[hgsports]

Ah.... you're right, that is tough

Thanks for the help. I was trying to figure out why my test kits were all in mg/l, yet all the reference material I have talks in ppm. That shows you what staying up late reading reef books will do for you!

John

 

[esmithiii]

That formula is not correct for all tests. What are you testing for?

E

 

[pez]

1mg/l = 1 ppm with a sg of 1.000. For saltwater, it's not entirely correct, but close enough for hobbiest.

 

[Anonymous]

<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by hgsports:
<STRONG>Ah.... you're right, that is tough

Thanks for the help. I was trying to figure out why my test kits were all in mg/l, yet all the reference material I have talks in ppm. That shows you what staying up late reading reef books will do for you!

John</STRONG><HR></BLOCKQUOTE>

Don't worry, hg, I battled with many pool operators and a coworker (who was supposedly a chem major) over that one. I had to work it out to prove it to him and he still insists I'm wrong.

 

[esmithiii]

OK for ppm by weight, 1mg/L is the same as 1 ppm since 1L of pure water has a mass of 1kg, therefore 1mg/L is equivalent to 1mg/1kg or 1 ppm by WEIGHT. This is true for concentrations in WATER only.