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VRBL (violet red bile lactose) + VRBL (violet red bile lactose) Dipslides (Box of 10)

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  • VRBL and VRBL

VRBL agar tests for coliforms (Enterobacteriaceae and other lactose fermenting organisms) in food and environmental samples. This can include detection of contaminants such as E Coli, Klebsiella and Escherichia.

Pack Size
10 dipslides

Made in the UK
Manufactured in ISO 9001 certified conditions.
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The minimum purchase order quantity for the product is 150.

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Volume Discounts
Order 250 or more boxes Receive a 14.24% discount Price per box £10.26
Order 500 or more boxes Receive a 18.89% discount Price per box £9.70
Order 1000 or more boxes Receive a 33.65% discount Price per box £7.94
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Product Information
Front Agar Type Violet red bile lactose (VRBL)
Front Agar Colour Red/Purple
Front Agar Growth Coliforms
Rear Agar Type Violet red bile lactose (VRBL)
Rear Agar Colour Red/Purple
Rear Agar Growth Coliforms
Shelf Life 6 to 8 months
Certification ISO 9001
Important information To ensure that we can offer our customers maximum shelf life, these slides are manufactured to order and as a result, delivery can be up to 5 weeks.

About the vrbl (violet red bile lactose) + vrbl (violet red bile lactose) dipslides (box of 10)

The VRBL Dipslide features VRBL agar (violet red bile lactose). This agar measures coliforms levels (Enterobacteriaceae and other lactose fermenting organisms) in food and environmental samples. This can include detection of contaminants such as E Coli, Klebsiella and Escherichia.

Industry sectors include

  • Dairy and other food products
  • Animal Feed
  • Environmental
  • Water

If your sample contains microbiological contaminants, colonies will grow on the dipslide agars. Coliforms will produce red / purple colonies on the slide. You can then count the colonies and compare with the chart provided to assess the level of contamination.

Each dipslide box contains 10 dipslides with each dipslide housed within a shatterproof plastic tube.

Using the VRBL Dipslide

Testing with this slide would be best conducted with the patient giving a urine sample which the dipslide can then be immersed in.

Remove VRBL slide from tube

Step 1 : Remove slide

Carefully remove the sterile VRBL dip slide from its tube ensuring that no contact is made with the agar (to avoid contamination).

Surface testing

Step 2 : If Surface Testing

For surface testing, press the VRBL dipslide onto the surface. If needed, place a finger on the bottom of the slide (on the plastic, not the agar) to apply extra pressure.

Liquid Testing

Step 2 : If liquid testing

For liquid testing, immerse the VRBL dipslide into the fluid for 10 seconds then remove and allow to drain for a few seconds.

Swab Testing

Step 2 : If swab testing

Apply a sample of the test substance to a sterile swab and gently apply to the agars.

Incubate the dipslide

Step 3 : Incubate Slide

Label the tube with the included stickers then place the slide into an incubator and allow to incubate.

compare dipslide results

Step 4 : Compare results

Count the amount of colonies that have grown on the slide and compare them to the comparison chart provided.

VRBL Dipslide Features

Flexable paddle

Flexible Paddle

Each dipslide features a virtually unbreakable and flexible paddle allowing for even, full surface testing.

Easy run off design

Easy Run Off Design

Due to the design of the dipslide, fluids will drain off quickly during testing.

Recessed Handle

Recessed Handle

Each slide has a handle built into the lid that is recessed to help keep your fingers dry during testing.

Side Indicator

Side Indicator

One side of the slide will have a circle indicator so you know which side was used for testing which type of contaminant.

Dual sided paddle

Dual Sided

Each dipslide is dual sided to allow multiple contamination testing with one test

Thick reliable Agar

Thick Reliable Agar

Each agar is thick (approx 4mm) and raised above the dipslide to allow for easy surface testing.

Additional Details

Product Reference : VRBL

Internal catalogue reference : DS001-65

Product external rating on

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