NAMSA - Chemical Process Indicators
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Information on NAMSA Chemical Process Indicators (CPI)
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NAMSA's Chemical Process Indicators (CPI's) are self-adhesive labels suitable for application by hand or Meto gun on shipping cartons or individual packages. The brilliant colour transitions allow for end users to easily note when product has been exposed to a sterilisation process, making it easy for sterilisation facilities and manufacturers to control inventory and assure end users that products have been exposed to the sterilisation process. These colour-change indicators are manufactured using water-based, environmentally friendly, heavy metal free ink formulations. NAMSA offers a variety of standard configurations as well as customised indicator labels in a variety of sizes and shapes to meet customers' specifications.
Shelf Life and Storage Considerations - All Indicator Types: NAMSA CPI's have a 24 months shelf life and are stored at room temperature (23 ± 7°C). The shelf life is based on the date the indicating ink is applied to the substrate. After exposre, the colour remains stable when stored correctly. Each roll is individually packaged with a certificate of conformance to ensure the products’ quality and consistency. |
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| Chemical Process Indicators |
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Chemical Process Indicators (CPI's) |
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CPI Custom Labels |
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| Specific Product/Application Areas: |
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Biological Indicators (BI's) |
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QC Organisms/Growth Promotion
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Testing and Other Services |
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NEW and Featured Products |
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Vapourised Hydrogen Peroxide (VHP) Biological Indicators |
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Spore Strips and Discs for Sterilisation Monitoring |
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| Literature |
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Download NAMSA Technical Literature |
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NAMSA Products and Applications |
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| Product Type |
Product Description |
| Chemical Process Indicators (CPI) |
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 NAMSA's Chemical Process Indicators are suitable for application by hand or Meto gun on shipping cartons or individual packages. The label colour indicates at a glance whether or not the product has gone through the sterilisation process.
Examples of the available formats for the Chemical Process Indicator labels. A number of other formats are also available as standard products: |
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| Sterilisation Process: |
13mm Circles |
METO Labels |
Preprinted 13mm Circles |
| Gamma or E-beam |
5,000/roll |
1,000/roll |
5,000/roll |
| Ethylene Oxide |
5,000/roll |
1,500/roll |
5,000/roll |
| Steam |
5,000/roll |
Custom Label |
Custom Label |
| Vapourised H2O2 |
Custom Label |
Custom Label |
5,000/roll |
| Dry Heat |
1,000/roll |
Custom Label |
Custom Label |
| Depyrogenation |
500/roll |
Custom Label |
Custom Label |
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| Colour Transistions of Standard CPI's: |
| Sterilisation Process |
Exposure Conditions |
Unexposed |
Exposed1 |
| Gamma Radiation |
>10kGy |
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| Gamma Radiation |
>3kGy |
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| Ethylene Oxide2 |
600mg/L |
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| Steam3 |
121°C |
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| Vapourised H2O24 |
6mg/L4 |
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| Dry Heat5 |
<250°C |
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| Depyrogenation6 |
<180°C |
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Note 1: Colour change under the conditions specified
Note 2: 54°C, 60% RH, 20 minutes
Note 3: Saturated Steam 121°C, 3 minutes
Note 4: Minimum 6mg/L, 6 minutes at 50°C
Note 5: 30 minutes at 250°C
Note 6: Dry heat for 10 minutes at 160°C |
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| CPI Custom Labels |
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NAMSA's Custom Chemical Process Indicator labels are a convenient, cost-effective option for manufacturers who wish to combine a sterilisation indicator with an existing label. These custom indicators can be any size or shape, in roll or sheet formats, and are designed for application directly to an existing label, pouch, carton, or other container as required. NAMSA currently manufactures custom labels for leading companies in the medical device, garments, food and packaging industries. |
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Products and Applications 
