What tests are required to qualify for an OK compost INDUSTRIAL certificate?

The European Norm about compostability of packaging (EN 13432) requires (besides a clear and detailed description of the product) 4 tests:

• test on biodegradation (chemical break down of the polymer of fibers)
• test on disintegration (physically falling apart of the product in small fragments)
• test on ecotoxicity (test if the composted product does not exert any negative effect on plants)
• test on heavy metals content

NOTE – Biodegradation, ecotoxicity, and heavy metal content are characteristics of the material, whereas disintegration is a characteristic of the material and shape (final product).