Free chlorine definition

Free chlorine means the concentration of hypochlorous acid and hypochlorite ion in the swimming pool water as measured with a DPD (diethyl-p-phenylene diamine) test kit or as measured by another method approved by the department.
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Free chlorine means the residual chlorine existing in water as the sum of hypochlorous acid and hypochlorite ion.
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Free chlorine means that portion of the total chlorine remaining in chlorinated water that is not combined with ammonia, nitrogen compounds, or other compounds and will react chemically with undesirable or pathogenic organisms.
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Examples of Free chlorine in a sentence

  • Free chlorine residuals may be measured continuously by adapting a specified chlorine residual method for use with a continuous monitoring instrument, provided the chemistry, accuracy, and precision remain the same.

  • Disinfection – Free chlorine residual shall be 1 milligram per liter (mg/L) to 10 mg/L, inclusive, in conventional swimming pools and 2 mg/L to 10 mg/L, inclusive, in all other type pools such as spa-type pools and interactive water fountains; bromine residual shall be 1.5 mg/L to 10 mg/L, inclusive, in conventional swimming pools and 3 mg/L to 10 mg/L, inclusive, in all other type pools.

  • Free chlorine levels should be maintained per the Water Chemistry Guide.A defoamer may be used when excessive foaming occurs.

  • Example: Free chlorine with the purchase of a Covered Product, or one price for bundle of products, including a Covered Product.

  • Free chlorine loss during spray of membrane-less acidic electrolyzed water and its antimicrobial effect on airborne bacteria from poultry house.


More Definitions of Free chlorine

Free chlorine means the concentration of hypochlorous acid and hypochlorite ion in the swim- ming pool water.
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Free chlorine means the portion of total chlorine that is not combined chlorine and
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Free chlorine or “Free Available Chlorine” means the portion of the total available chlorine that is not combined chlorine or cyanurate-bound chlorine and is primarily present as hypochlorous acid and hypochlorite. For purposes of this document, free chlorine is the portion of total chorine that reacts with the DPD chlorine test.
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Free chlorine means chlorine, excluding combined chlorine, that remains in water after disinfection has occurred.
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Free chlorine means the amount of chlorine available as dissolved gas, hypochlorous acid, or hypochlorite ion that is not combined with an amine or other organic compound;
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Free chlorine means the concentration of hypochlorous acid and hypochlorite ion in the swimming pool water.
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Free chlorine means the portion of total chlorine that is not combined chlorine and that is available as HOCl and OCl-. This is the portion of total chlorine that reacts with DPD chlorine test.
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