Crosstex Gamma and E-Beam Chemical Process Indicators (CPIs) are manufactured to monitor whether low-dose Gamma and E-Beam exposure conditions were met at the point of application using pressure sensitive adhesive. CPI-F01 are intended for use with individual units (e.g. packs, containers) to indicate that the unit has been directly exposed to Gamma and E-Beam process and to distinguish between processed and unprocessed units.