Description

Dipslides are a useful tool for the fast testing of water samples on site.

Whilst they have relatively low resolution and should not be used for testing critical samples they are a useful and cost effective indicator of general water hygiene.

Dipslides are ideal for monitoring microbial growth wherever the potential may exceed 1000 organisms per ml of sample fluid. As such they are useful for testing water storage tanks, process systems and surfaces where possible high microbial counts may exist.

With a number of different media options it is possible to select for specific bacteria of interest.

Fluid Sampling:

• Remove the dipslide from it tube and immerse in the liquid to be tested for about 10 seconds.
• Remove the dipslide from the liquid and allow draining for a few seconds. Replace the slide in the tube and incubate for 24 – 48 hours.
• At the end of the incubation period, read the results against the chart provided with the dipslides.

Surface Sampling:

• Remove the contact slide from its tube and press against the surface to be tested.
• Turn the slide over and repeat the procedure with the second side.
• Replace the slide in to the tube and incubate for 24 – 48 hours.
• At the end of the incubation period, read the results against the chart provided with the dipslides.

Slides can be removed for assessment and comparison after 24 to 48 hours for bacteria and up to 5 days for yeast and moulds.

You should then use the comparator chart provided with the Dipslides to determine the approximate number of colonies.