🚀 go-pugleaf

fernando@aplcomm.jhuapl.edu (Fernando Pineda) writes:

>The La Motte test kit gives me a reading of ~1000 ppm CaC03 or( ~400
>ppm Ca+2) for freshly mixed Instant Ocean.>

>Oh-oh --  does this mean that LaMotte has more than one hardness test kit? I 
>simply ordered the Ca hardness test kit from my favorite mail order store.  

I don't know what all kits they make.  I'm assuming they have all the
standard hardness ones.  Anyway, you seem sure you're measuring
calcium and the 1000 ppm is a very reasonable value for that.  In the
aquarium hobby we use ppm (or mg/l - almost identical) for calcium
measurements.  I think the boiler industry uses degrees of some kind
or, shudder, grains/gallon (now there's a great unit).

Why are you trying to convert to degrees of calcium hardness?  Moe,
Tullock and Thiel all use mg/l - ppm.  I thought you wanted to convert
to compare with what they recommend.  They recommend in mg/l, not
degrees.
-- 
Keith Rogers
krogers@javelin.sim.es.com