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CompactDry AQ

Heterotrophic bacteria in water

Incubation Time
44 +/- 4 hours
68 +/- 4 hours

Incubation Temperature
36 +/- 2°C (filter/ SMEWW method)
22 +/- 2°C (ISO6222:1999)

Following guidelines set by the World Health Organization (WHO), treated drinking water should be free from contaminating microorganisms. Heterotrophic Plate Count (HPC) represents the total...

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Package

Quantity

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40 plates 54061-0AQ-0040
240 plates 54061-0AQ-0240
1400 plates 54061-0AQ-1400

Following guidelines set by the World Health Organization (WHO), treated drinking water should be free from contaminating microorganisms. Heterotrophic Plate Count (HPC) represents the total microbial count in water, including bacteria, yeast, and mould.

 

Advantages of using CompactDry AQ to test for heterotrophic bacteria in water.

CompactDry AQ, is a ready-to-use selective dehydrated media plate for the detection and enumeration of heterotrophic bacteria in drinking water and ultra-pure water.

It is composed of a nutrient-poor culture medium for bacteria adapted to nutrient-poor conditions. The chromogenic substrate results in red heterotrophic bacteria colonies after incubation, allowing simplified visualisation and enumeration.

 

 

Red : Colonies are almost all red.

Yeast tends to grow as white-pink colonies.

Moulds grow as a typical 3-dimensional cotton wool form.

General protocol

Step #1
1

Remove the cap

Step #2
2

Dispense 1 mL of sample in the middle of the CompactDry plate

Step #3
3

The sample diffuses passively and evenly across the dehydrated media sheet, rehydrating the dry medium into a gel within seconds

Step #4
4

Replace the lid and label the plate

Step #5
5

Turn over the plate (lid down) and incubate for the appropriate time and temperature

Step #6
6

Following incubation, count the number of coloured microbial colonies

Incubation Time
44 +/- 4 hours
68 +/- 4 hours

Incubation temperature
36 +/- 2°C (filter/ SMEWW method)
22 +/- 2°C (ISO6222:1999)

Shelf Life
24 months

Storage Temperature
RT +1°C to +30°C

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