i just started using a Taylor K-2006 testing kit and am at the beginning of SLAMing my pool.
the Free Chlorine (FC) and Combined Chlorine (CC) tests involve using a tiny spoon to, and i quote "Add two dippers of R-0870", then "Swirl until dissolved".
here's my question: how sensitive is the rest of the test to the amount of R-0870 that you just added to the tube? from what i can tell, there are at least two places for substantial variation in the amount of R-0870 added to the tube between two subsequent tests:
1. if the dipper isn't completely level (it's rounded because it's slightly more than one dipper, or slightly less than one dipper).
2. there's always residue on the outside of the dipper, some of which makes it's way into the tube.
because i'm trying to get an accuracy of less than 1ppm in the result, i suspect that this test has to be done very, very consistently .. and i'm wondering how people get to such a high degree of precision with this test in particular.
thanks for any thoughts.
the Free Chlorine (FC) and Combined Chlorine (CC) tests involve using a tiny spoon to, and i quote "Add two dippers of R-0870", then "Swirl until dissolved".
here's my question: how sensitive is the rest of the test to the amount of R-0870 that you just added to the tube? from what i can tell, there are at least two places for substantial variation in the amount of R-0870 added to the tube between two subsequent tests:
1. if the dipper isn't completely level (it's rounded because it's slightly more than one dipper, or slightly less than one dipper).
2. there's always residue on the outside of the dipper, some of which makes it's way into the tube.
because i'm trying to get an accuracy of less than 1ppm in the result, i suspect that this test has to be done very, very consistently .. and i'm wondering how people get to such a high degree of precision with this test in particular.
thanks for any thoughts.