The Neat Protocol MTT ET50 Assay is designed for the hazard identification of chemicals, biocides, and cosmetics.

If your product is a medical device, eye irritation testing may still be required, but there is no dedicated ISO 10993 standard for in vitro eye irritation testing. Thus, this method may be used to screen for the eye irritation potential of medical devices, depending on the specific regulation.

If you do not expect your product to cause eye irritation, you may opt for OECD 492 to confirm that your product is non-irritating.

If your product might cause eye irritation, this assay can evaluate ocular irritation potential based on ET50 values. The ET50 value can help determine the severity of eye irritation and classify the product using EPA hazard classification.

Standard Method Exposure Times: 3 min, 30 min, and 60 min

EPA Hazard Classification Exposure Times: 2 min, 15 min, 45 min, and 90 min

Based on the standard method:

Based on EPA classification:

Fill in 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 or utilize our sample delivery service. We will monitor the delivery status and inform you when we receive the sample.

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

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.