CHemical RISk calculators (CHRIS) - Color additives

For details on how to use the CHRIS color additive module, please read the instructions and Summary of Evidence and Basis of Qualification (SEBQ), which includes limitations of use. A tutorial video is also available, along with answers to frequently asked questions. For a history of updates, please see the changelog.

Color additive

Molecular weight (g/mol):
Amount (mg):
Total impurity concentration (%):

Polymer matrix

Mass (g):
Density (g/cm3):

Device characteristics

Exposed surface area (cm2):
Exposure type: long-term prolonged limited


Check all statements below that are applicable to your color additive containing component:

The clinical use environment does not cause the polymer matrix to swell or degrade.
Color additive particles/aggregates present in the polymer are much smaller than the smallest component dimension (≤ 50x).
The color additive is homogeneously distributed throughout the polymer.
The total amount of color additive is present in dilute concentrations (≤ 2 m/v %).
Manufacturing processes do not impact the stability of the polymer.

Exposure assessment

Click to screen your device: