Indicator Tape for Dry Heat Sterilization, 19mm x 50m/Roll. The 'V' stamp changes color from light green to brown, after 30 minutes at 155C indicating that a Dry Heat Sterilization temperature has been attained. Used with Sterilizer Wraps made to withstand high temperatures of dry heat sterilizers. Ideal for Cassette Wrapping in Rapid Heat Sterilizers. Color changes from white to brown for both products. Conform with ISO 11140/2005. 50m roll of tape