Deutsch
中文
日本語
Português
Français
Español
العربية
Quantitative Carrier Test for the Evaluation of Bactericidal Activity of Teat Disinfectants used in the Veterinary Area
EN 17422 is the European Standard used to evaluate the bactericidal activity of teat disinfectants specifically used in the veterinary area. The infographic below shows a brief insight of EN 17422.
Step 1: Is your product a teat disinfectant used without mechanical action?
This test method is designed specifically for teat disinfectants used without mechanical action for pre- or post- milking disinfection.
If your product is a surface disinfectant, EN 14349 would be suitable.
Step 2: Select your test microorganisms
These are the mandatory test organisms:
- Escherichia coli
- Staphylococcus aureus
Wish to add more microorganisms? Click here for our full list of microorganisms.
Step 3: Select the appropriate test conditions for your test product
The test concentration is chosen according to the manufacturer’s recommendation.
The recommended contact time to be tested may be chosen from between
- Pre-milking disinfectants: 30s to 180s
- Post-milking disinfectants: 1 min to 5 mins
The obligatory test temperature by the test method is 30°C.
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. The soiling conditions for this test method are fixed as follows according to the product application:
- Pre-milking teat disinfectants: 3.0 g/L bovine serum albumin
- Post-milking teat disinfectants: 10.0 g/L milk powder
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.
You can deliver the sample to us via 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 you with a tracking number. 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 for post-milking disinfectant or 3 decimal log (lg) reduction for pre-milking disinfectant.
Need assistance with your test report? Discuss your results with our microbiologists for more information.