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WA Chlorine Guideline

May 8, 2025

New Chlorine Testing Regulations in Western Australia: Are You Prepared?

Dandenong South, Victoria – As of January 1, 2025, the Water Corporation of Western Australia enforce new regulations requiring the use of digital chlorine meters for all potable water disinfection verification under DS63 Update Bulletin 24-02. This significant change mandates that contractors must now utilize reliable, calibrated instruments to ensure compliance with the mandated 4.0–6.0 mg/L free chlorine range, replacing traditional visual methods such as test strips or color charts.

Stay Ahead with Hach DR300

To meet these new requirements, the Hach DR300 Free Chlorine Portable Colorimeter emerges as a trusted compliance partner. The DR300 delivers precise digital chlorine analysis even under the harshest site conditions. Key features include:

  • Precise digital results – Eliminates subjectivity associated with color charts or strips.
  • Rugged IP67 design – Built to withstand harsh Australian environments.
  • Backlit display – Ensures easy reading in all light conditions.
  • Pre-programmed for free chlorine (DPD Method) – Ready for immediate use.
  • Compatibility with Hach’s SpecCheck and reagent vials – Ensures verified accuracy.
  • Full compliance with Water Corporation’s approved testing methods.

For more information and to purchase the DR300, click here:

Maximize Accuracy with Hach SpecChecks™

To ensure your DR300 delivers consistent, regulation-ready results, Hach offers SpecChecks™ for calibration verification. These single-use sealed vials guarantee absolute accuracy, making them ideal for maintaining compliance.

Learn more and shop for DPD Chlorine SpecChecks

Chlorine Reagents for Every Jobsite

Hach provides a range of chlorine reagents to support your testing needs:

Don’t Risk Rejection. Get Equipped Today.

Complete your setup with DPD reagents and SpecChecks to ensure full compliance. For a quote, contact sales@hachpacific.com.

Need to Test More Than Just Chlorine?

For teams requiring broader water quality testing, the Hach DR900 Multiparameter Portable Colorimeter is the perfect companion to the DR300. It offers comprehensive on-site water analysis without compromising on ruggedness or ease of use.

Discover more about the DR900 here:

For any questions or further information, please contact us at 1300 887 735 or sales@hachpacific.com

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