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Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm
Hanna Instruments Australia
Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm

Free Chlorine Low and Medium Range Test Kit with Checker Disc- HI38018

$187.89

The HI38018 is a chemical test kit that determines the free chlorine concentration in a low and a medium range: 0 to 0.7 mg/L and 0 to 3.5 mg/L. The HI38018 is supplied complete with all of the reagents and equipment necessary to perform the analysis, including the Checker® disc for accurate determination than a color comparator cube. The test kit contains enough reagents to perform 200 tests.

  • Pre-made reagents for ease of use
  • All reagents marked with expiration date and lot number for traceability
  • Checker® disc for more accurate determination
The HI38018 is a chemical test kit that determines the free chlorine concentration in two ranges: 0 to 0.7 mg/L and 0 to 3.5 mg/L. The HI38018 is supplied with all of the necessary reagents and equipment to perform the analysis, such as a demineralized bottle with filter cap for 12L for sample preparation, glass vials, and the Checker® disc. The test kit is supplied with enough reagents to perform 200 tests.

Features at-a-glance

  • Complete setup
    • All required materials are included with the test kit, such as the glass vials, plastic pipette, reagent packets, and Checker® disc.
  • High resolution
    • Readings from 0 to 0.7 mg/L are determined to 0.02 mg/L resolution.
    • Readings from 0 to 3.5 mg/L are determined to 0.1 mg/L resolution.
  • Replacement reagents available
    • There is no need to buy a new kit when reagents are exhausted. The HI38018-200 reagent set can be ordered to replace the reagents supplied with the kit. This reagent set comes with 200 packets of HI93701-0 free chlorine reagent.

Significance of Use

Disinfection is a process of killing disease-causing organisms (or pathogens). Chlorine (Cl2) is a very desirable disinfectant because, when mixed with pure water, it reacts to form hypochlorous acid (HOCl) and hydrochloric acid (HCl). HOCl (free active chlorine) is the most effective form of chlorine for disinfection of pools, spas, and drinking water.

Drinking water municipalities add elemental chlorine to the water supply as chlorine gas, liquid sodium hypochlorite, or dry calcium hypochlorite. In water these form free chlorine ions, which destroy disease-causing pathogens, reduce odor, eliminate bacteria and help to remove unwanted elements. The USEPA requires that residual disinfectant is present in finished drinking water to ensure there is disinfectant available throughout the distribution system, with chlorine acting as one of the disinfectants that provides said residual. However, the EPA has also set a maximum contaminant level of 4.0 mg/L for free chlorine due to potential health effects above this level.

SKU HI38018
Name Free Chlorine Low and Medium Range Test Kit with Checker Disc- HI38018
Free Chlorine Measurement Type Checker Disc
Free Chlorine Range Low Range: 0.00 to 0.70 mg/L (ppm)
Medium Range: 0.0 to 3.5 mg/L (ppm)
Free Chlorine Resolution 0.02 mg/L (0.00 to 0.70 mg/L range), 0.1 mg/L (0.0 to 3.5 mg/L range)
Free Chlorine Number of Tests 200
Chlorine Method DPD
Weight 647 g (22.8 oz.)
Dimensions 235x175x115 mm (9.2×6.9×4.5 in.)

HI38018 test kit comes with HI93701-0 free chlorine reagent (200 packets), demineralizer bottle with cap for 12 L, checker disc, glass vials with caps (2), and 3 mL plastic pipette.

Free Chlorine Low and Medium Range Test Kit with Checker Disc- HI38018

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.


Free standard delivery:

We offer free delivery within Australia, typically arriving within 5 to 7 days. Delivery times may vary depending on the courier service and the recipient’s location.


Same-day express delivery:

Place your order before 1 PM Monday to Friday for the same-day express shipping. Delivery times may vary depending on the courier service and the recipient’s location.

Please note that we do not offer shipping to PO Box addresses.

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.

Please note that we do not offer shipping to PO Box addresses.