ASTM G21 Fungi Resistance Test Specimens

ASTM G21 Fungi Resistance Test Specimens

Test specimens used in ASTM G21 (Resistance of Synthetic Polymeric Materials to Fungi). These test specimens can be made from a variety of different materials, including nylon, polyethylene, polyester, and Teflon (PTFE). ASTM G21 describes several standard specimen shapes: a 2" x 2" square, a 2" diameter circle, and a 3" rod or tube. The exact specimen dimensions may vary depending on the material used. This method recommends using three to six specimens per test. ASTM G21 supersedes FED-STD-406 Test Method (FTM) 6091.