20.3 x 30.5mm (8'' x 12'') Ideal for processing of biohazardous materials which require autoclaving prior to disposal. Available with or without temperature indicator. High-integrity polypropylene bag withstands 135°C (275°F) maximum autoclave temperature. Twist-tie closure allows bag to expand and vent steam during cooling. Bag resists punctures, tears, and leaks, and meets the 165g dart drop standard performed as required by ASTM D1709-98. Available in clear, red, or orange plastic. Each bag imprinted with the universal biohazard symbol. Indicator bag has the words "Contents Have Been Autoclaved" printed in a chemically active ink. Before autoclaving, the ink is white. After autoclaving is complete, it darkens, providing instant proof that biohazardous waste has been autoclaved. Indicator bag available in red or orange.