Salifer test kit question

shikhyung · #1 01/08/2008, 02:07 AM

Hi, I did not see Salifert forum any more so I ask in this forum.
wonder that the Cal test kit with CA part2 requires 8 drops, does it make any different if it is 7 drops, 7.5 drops, or 8.5 drops... Thanks,

Randy Holmes-Farley · #2 01/08/2008, 07:34 AM

That part is not especially critical, but I do not see any reason to use other than the recommended amount. The only critical measurement in a calcium test is the titrant addition at the end. All others are typically present in excess.

Bri Guy · #3 01/08/2008, 11:55 AM

Ya, what happened to the salifert forum??

a2fire2i · #4 01/08/2008, 12:30 PM

http://archive.reefcentral.com/forum...readid=1285134

nelsen · #5 01/08/2008, 12:57 PM

was wondering about this also. just replaced my older Cal kit which called for 6 drops. now its 8. havent found anything that explains the reasoning for the change. ive done 6,7 and 8 drops with the results coming within +/-25 of one another.

this was the first thing to 'run out' in the previous kit. imo, without a sound reason - the change to 8 drops is simply a way for salifert to sell more kits

ive been a fan of salifert kits for years but im moving along with what has transpired of late

Randy Holmes-Farley · #6 01/08/2008, 01:19 PM

Without knowing the concentration of the chemicals in the fluid, it's hard to say if they actually changed what is added or not.

bertoni · #7 01/08/2008, 08:32 PM

Hmm, plus or minus 25 ppm isn't all that close for the calcium test kit, in my experience. I've done a number of side-by-side runs, and the results were usually closer than that. Hard to say, though.