I have never used the block comparator for chlorine, only ph. I decided to see just how dark 8 ppm might show on the block and was surprised by my result.
Tested with 1 scoop of powder in 10ml, chlorine 8 as anticipated then immediately with R-0003 , zero. Expiration on the R-0003 shown below. I guess my question is, can the reagent go bad though it's two years to expiration, and if it goes bad is this what happens?
Tested with 1 scoop of powder in 10ml, chlorine 8 as anticipated then immediately with R-0003 , zero. Expiration on the R-0003 shown below. I guess my question is, can the reagent go bad though it's two years to expiration, and if it goes bad is this what happens?