Excelsior EO Chemical Indicators

Excelsior Ethylene Oxide (EO) Chemical Process Indicators (CPIs) are manufactured to meet performance specifications described in ISO 11140-1 “Sterilisation of health care products - Chemical indicators - Part 1: General requirements,” for Type 1 Process Indicators. The purple-to-green colour transition is sensitive to time, temperature, humidity and presence of EO (see chart to right). Excelsior EO CPIs are not intended for use as sterility indicators, but rather as throughput process indicators used to monitor exposure to EO sterilisation processes.

Excelsior EO CPIs are labelled with 36 months of shelf life and room temperature storage (23˚C ± 7 ˚C). The shelf life is based on the date the indicating ink is applied to the substrate. Product may have a shelf life of less than 24 months at the time of purchase.

Avoid contact or storage of indicators near substrates which are acidic or basic in nature, such as cleaning solutions and disinfectants.

Exposed indicators are stable and will remain green when stored under labelled conditions. Each roll is individually packaged with a certificate of conformance to ensure the products’ quality and consistency. Excelsior EO CPIs are non-odorous and nonhazardous to use. The printed labels are safe to dispose in general waste receptacles. No MSDS required per CFR 1910.1200.

Product Type: Plain 1/2” (12.7mm)
Number of CPIs / Roll: 5,000

Chemical Process Indicators (CPIs) For monitoring Ethylene Oxide Sterilisation Processes (CLASS / TYPE 1)

Excelsior Ethylene Oxide (EO) CPIs contain no lead or other toxic heavy metals. The indicators are manufactured to monitor whether EO conditions were met at the met at the point of application using pressure sensitive adhesive. The indicators are designed for use with individual units (eg. Packs, containers) to indicate that the unit has been directly exposed to an EO process and to distinguish between processed and unprocessed units. The indicators transition from purple to green.

Physical Properties

Process EO

Dimensions 12.7 mm (1/2”)

Dot Thickness: 0.10mm (indicator); 0.17mm (indicator and liner)

Imprinted Text “Green is EO Exposed”

Packaging 5,000 Indicators/Roll

Chemical Indicator Initial Colour: Purple, Signal Colour: Green

Chemical Indicator inks contain no lead or other toxic heavy metals

The strip indicator colour demonstrates at a glance whether or not the product has gone through the sterilisation process, making it easy for sterilisation facilities to ensure that products have been exposed correctly to the sterilisation process. Strips transition an initial colour to a different signal colour depending on the process type.

E.O Type 4 Indicator
Requires exposure for 20 mins at 54˚C at 60% RH using 600 mg/L gas. Transitions from Purple/Brown to Green. Box of 250.

The strip indicator colour demonstrates at a glance whether or not the product has gone through the sterilisation process, making it easy for sterilisation facilities to ensure that products have been exposed correctly to the sterilisation process. Strips transition an initial colour to a different signal colour depending on the process type.

E.O Strip - Requires exposure for 40 mins at 54˚c at 60% rH using 600 mg/l gas. Transitions from purple/brown to green. Box of 250.