But the article about the EN 13432 norm says:

The test criteria include:

• Biodegradation – measures the packaging material’s rate of metabolic, microbial conversion into water, carbon dioxide, mineral salts of any other elements present and new cell biomass.
• Disintegration – packaging material is mixed with organic waste for 12 weeks, after which time, no more than 10 percent of material fragments are allowed to be larger than 2 mm.
• Toxic substances – there must be a minimal negative effect on the quality of the resulting compost.
• Ecotoxicity effects – compares compost produced with and without the addition of packaging material.

I'm confused.