Jis Z 1707 -

This is a critical chemical test. The film is immersed in solvents (simulating different types of food—e.g., water for aqueous foods, heptane/ethanol for fatty foods) for a set period. The amount of chemical substances that "migrate" from the film into the solvent is measured. This must remain well below the safety threshold to prevent toxicity.

Guaranteeing the package won't fail during shipping. jis z 1707

Compliant film rolls must be clearly labeled with: This is a critical chemical test

For films used in shrink-wrapping, JIS Z 1707 provides guidelines on how much the material should contract when heat is applied, ensuring a snug, professional fit. Importance in Food Safety water for aqueous foods