TEST METHODVAH Method 14.1

Surface Disinfection without Mechanical Action - Simulated-use Test (Mycobactericidal Activity)
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VAH Method 14.1 is the VAH standard method used to evaluate the mycobactericidal activity of surface disinfectants without mechanical action through simulated-use carrier test. The infographic below shows a brief insight of VAH 14.1.

As a VAH approved lab, TECOLAB is committed to providing the standards required for all your claims for VAH certification. While we mostly practice using the EN equivalent methods with the required modifications, some tests are not yet available in the European Norm such as surface disinfection without mechanical action for mycobactericidal or tuberculocidal activity. Therefore, we developed VAH 14.1 for mycobactericidal and/or tuberculocidal activity. VAH 14.1 test methodology is equivalent to that of EN 17387 or EN 13697.

While we can perform all spectrum of activity according to this test method, our VAH 14.1 method is only accredited for mycobactericidal or tuberculocidal activity. For other activity claims, it is advisable to stick to EN 17387 for the medical area or EN 13697 for the food, industrial, domestic and institutional areas.

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CUSTOMER PROCESS

Step 1: Are you claiming mycobactericidal activity for surface disinfectant used without mechanical action?

This test method is advisable only for mycobactericidal/tuberculocidal activity of surface disinfectants used without mechanical action.

If you are aiming for bactericidal, yeasticidal and/or fungicidal activity, we would suggest EN 17387 or EN 13697.

If your product requires a wiping action, please check out EN 16615 (for bactericidal and yeasticidal activity) or VAH 14.2 (for fungicidal and mycobactericidal/tuberculocidal activity).

Step 2: Select your test microorganisms

These are the mandatory test organisms:

  • Mycobacterium terrae (for tuberculocidal activity)
  • Mycobacterium avium (additionally for mycobactericidal activity)

Wish to add more microorganisms? Click here for our full list of microorganisms.

Step 3: Select an appropriate contact time and concentration for your test product

3 test concentrations is chosen according to the manufacturer’s recommendation, demonstrating at least 1 concentration in the active range and 1 in the non-active range.

2 contact times may be chosen from 1, 5, 15, 30, 60, or 240 minutes depending on the claim and practicality of product use based on the manufacturer’s recommendation.

TEST RUN 1

1 carrier
2 contact times
3 concentrations

TEST RUN 2

2 carriers
Claimed concentration and contact time only

Step 4: What are the soiling conditions associated with your test product?

Interfering substances, or commonly referred to as soiling, are used to mimic organic substances found on human skin, surfaces, and instruments. These are the available soiling conditions according to the test method:

  • Clean condition: 0.3 g/L bovine serum albumin
  • Dirty condition: 3.0 g/L bovine serum albumin and 3.0 ml/L sheep erythrocytes
Step 5: Place an order and send your sample to us

Fill the test request form and place an order via email at info@tecolab-global.com. We will advise on the quantity of sample required for testing.

Check out our sample delivery service or you can deliver the sample to us via any courier and provide us the tracking code. We will monitor the delivery status and inform you when we receive the sample.

Step 6: Track the status of your request

Once we have received your sample, we will provide a tracking number to you. You can easily track the status of your request here.

Step 7: Download your password-protected test report

Download your readily available test report online with just a single click using the link and password provided via email notification. We will receive a notification once you have downloaded the test report.

For safety purposes, the uploaded test report will self-destruct after 7 days.

Step 8: Analyze your passing criteria in the test report with our laboratory experts

In order to pass the test, the product shall demonstrate at least a 4 decimal log (lg) reduction (99.99%) under the tested conditions.

Need assistance with your test report? Discuss your results with our microbiologists for more information.