PCA + TTC + Neutralizing / PCA + TTC + Neutralizing is a ready-to-use device with a medium coated onto a plastic support used for the microbial monitoring of surfaces and liquids. The slide is covered on both sides with PCA + TTC + Neutralizing which allows bacteria to grow as red colonies, even in the presence of residues of disinfectants.

TEST PROCEDURE

1. Take a slide from the refrigerator and leave it at ambient temperature for about 5 minutes.
2. Unscrew and extract the slide from its cylindrical container. Avoid any contact with the agar surface.
3. For surface monitoring, flex the cap forming a 90° angle and press each side of the slide firmly against the surface to be examined for 10 seconds. Alternatively, use a swab for sampling the area, afterwards roll the swab gently over the agar surface. For examination of liquids, hold the slide by the cap and immerse it completely into the test fluid.
4. Reinsert the slide into its tube, screw it tight and incubate at 30 ± 1°C for up to 72 h.

RESULTS INTERPRETATION

Count the total number of colonies to obtain the total bacterial count.

APPEARANCE

Slightly opalescent, light amber.

STORAGE CONDITIONS

10-25°C away from light, until the expiry date on the label. Eliminate if signs of deterioration or contamination are evident.

SHELF LIFE

9 months