SC Swimming Pool Practice Questions - South Carolina Swimming Pool Contractor Examination Exam

R.61-51.J.14(a) requires free chlorine or bromine residuals to be measured by which method?

Litmus paper only The DPD method or another USEPA- or Standard Methods-approved methodology Smell and eye-irritation judgment ORP reading without any colorimetric check

Correct Answer:

The DPD method or another USEPA- or Standard Methods-approved methodology

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