Food Contact Testing
Standard IS 9845:1998 · Overall migration
Determination of the overall migration of constituents from plastic materials and articles intended to come into contact with food.
How the Test Works
The plastic packaging is exposed to the appropriate food simulant under specified time and temperature conditions. The substances that migrate into the simulant are then determined, generally by gravimetric analysis.
Choose the simulant
The simulant is selected to match the type of food the packaging will hold.
Expose under set conditions
Time and temperature are chosen to match how the packaging will be used.
Measure the migration
Overall migration is generally expressed as mg/dm² of food-contact surface.
Food Simulants
The simulant is chosen according to the type of food the packaging will hold.
| Simulant | Medium |
|---|---|
| A | Distilled water |
| B | 3% acetic acid |
| C | 10% ethanol |
| C | 50% ethanol |
| D | n-Heptane |
| E | Olive oil or a suitable fat simulant |
Key point. IS 9845:1998 is the overall migration test for plastic food-contact materials.
Important Considerations
A migration result is only meaningful when the test reflects how the packaging is really used.
- The simulant depends on the type of food.
- Time and temperature depend on the intended use.
- The test should represent the actual food-contact application.
- Colour migration may also be assessed.
Applicable Materials
The test applies to plastic packaging that comes into direct contact with food.
- Plastic films
- Pouches
- Laminates
- Containers
- Bottles
- Closures
- Other plastic food-contact articles
Request Food Contact Testing
Tell us the material, the food it will hold and how it will be stored. We will recommend the simulant and test conditions.
- Someone from the team will call or write back on the next working day.
- Sending samples? Fill in the Customer Request Form and send it with them.
- Prefer to talk? Call or WhatsApp +91 91608 14321.
Request a Quote
Thank you. Your request is with PCRI.
Someone from the team will call or write back on the next working day.