My CC tested 0.6 on a FAS-DPD test using a 25mL sample. If I understand correctly, the recommended approach to reducing CC when greater than 0.5 is to shock to 12ppm FC.
I'm not sure if this is technically SLAM, but assuming I need to maintain 12ppm FC (or whatever the CYA/FC table specifies) until my CC comes down to acceptable levels, how to I measure fractional ppm levels of CC when my FC is 12 without blowing through a ton of R-0871 reagent?
I'm assuming that I need to be doing a 25mL sample test to get .2ppm/drop granularity, which would require 60 drops (12ppm * 5 drops/ppm) of reagent to eliminate the FC prior to being able to test the CC.
Is the answer that I just need to test a 10mL sample and be happy when either:
I'm a long time lurker, first time poster. Thanks for all of the great advice and knowledge that you all provide here. TFP is an excellent resource and great community!
I'm not sure if this is technically SLAM, but assuming I need to maintain 12ppm FC (or whatever the CYA/FC table specifies) until my CC comes down to acceptable levels, how to I measure fractional ppm levels of CC when my FC is 12 without blowing through a ton of R-0871 reagent?
I'm assuming that I need to be doing a 25mL sample test to get .2ppm/drop granularity, which would require 60 drops (12ppm * 5 drops/ppm) of reagent to eliminate the FC prior to being able to test the CC.
Is the answer that I just need to test a 10mL sample and be happy when either:
- The sample is clear after adding my 5 drops of R-0003 (indicating 0 CC), or
- After adding the R-0003, 1 drop of R-0871 turns the sample clear (indicating 0 <= CC <= 0.5, an acceptable level)
I'm a long time lurker, first time poster. Thanks for all of the great advice and knowledge that you all provide here. TFP is an excellent resource and great community!