Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber
This test evaluates the relative resistance of coated interior materials to surface mold and mildew growth in a severe environment over a 4-week period. In spite of the test’s purpose, many other materials that cannot be considered “coated interior materials” are also evaluated for mold resistance using this test.
- The test utilizes a pan of moldy soil that continuously releases fungal spores in a high humidity, a warm temperature chamber, and challenging test pieces suspended above the soil for 28 days.
- Fungal growth is based on visual defacement using a 0 to 10 rating scale with 0 being completely covered with growth and 10 being clean.