🔔 Important Alert for Students: When accessing the Online Training portal, if you encounter any headers labeled "undefined," we recommend logging out and clearing your internet cache and cookies.

This procedure is expected to resolve the issue effectively. Thank you for your understanding.

How to Clear Cache, Images, and Cookies:

Google Chrome (most common):

Click the three dots in the top-right corner.
Go to Settings > Privacy and security > Clear browsing data.
Under Time range, select "All time".
Check the boxes for:
- Cookies and other site data
- Cached images and files
Click Clear data.
Close all browser windows and log back into the portal.

Microsoft Edge:

Click the three dots in the top-right corner.
Go to Settings > Privacy, search, and services.
Under Clear browsing data, click Choose what to clear.
Select All time for time range.
Check:
- Cookies and other site data
- Cached images and files
Click Clear now.
Restart the browser and log in again

Home
All Products
Tirril Burner for Small-Scale Burning Test (ASTM D5025)

Tirril Burner for Small-Scale Burning Test (ASTM D5025)

Humboldt's Flame Test Burners are designed to be used as ignition sources for small-scale burning tests, such as the UL flame test and other similar test standards.

Supplied complete with two 3/8" (9.5mm) ID by 4" (100mm) long mixing tubes for use in the 20mm and 125mm burning tests. Meets ASTM D5025. Provided with two tubes, one to lock out the air intake to produce a high yellow flame and the other can be adjusted for a sharp blue flame.

*CFHs and BTU Outputs are figured on:
5 inch Water Column Pressures for Artificial and Natural Burners. 11 inch Water Column Pressures for LP Burners. Inlet OD for all Burners: 5/16" Serrated.