Compact Dry AQ plates provide a rapid, reliable heterotrophic plate count (HPC) for assessing the overall microbial load in water. Each pre-sterilized, dehydrated plate re-hydrates on contact with 1 mL of sample, eliminating media preparation and autoclaving. Colonies develop as easily distinguishable red or pink spots, making enumeration and downstream sub-culturing straightforward.

Ensure treated drinking water and/or ultra-pure water meets local regulatory requirements by confirming that heterotrophic counts fall within acceptable limits.

Key Benefits

Regulatory alignment – validated for WHO drinking-water guidelines, ISO 6222:1999, and SMEWW 9215 methods.
True “ready-to-use” format – open, inoculate, incubate; no mixing or pouring agar.
Space-saving design – low-profile, rigid, stackable plates maximize incubator capacity.
Ambient storage – stable for the full shelf life at 1 – 30 °C; no refrigeration needed.
Clear colony isolation – well-defined colonies can be picked directly for confirmation tests.

Incubation Parameters

Method (standard)	Temperature	Time
Filter / SMEWW 9215	36 ± 2 °C	44 ± 4 h
ISO 6222:1999	22 ± 2 °C	68 ± 4 h

Performance
Countable range: 1 – 300 CFU per plate (based on 1 mL inoculum)

Country/Region

Country/Region

Introducing

Heterotrophic Bacteria Detection

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Compact Dry AQ | Heterotrophic Bacteria

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