By the CompoZone team — CPCB certified compostable packaging manufacturer, Ahmedabad, India.
ASTM D6400 (United States) and EN 13432 (Europe) are functionally equivalent compostability standards — they require the same core outcomes, just under different regional certifying bodies. Both demand at least 90% biodegradation within 6 months and disintegration into fragments smaller than 2mm within about 12 weeks, with no toxic residue left behind.
What both standards actually test
- Biodegradation — at least 90% conversion to CO₂ within 6 months under composting conditions
- Disintegration — the material physically breaks into fragments under 2mm within roughly 12 weeks
- Ecotoxicity — compost made from the tested material must support normal plant growth, compared to a control
- Heavy metals — regulated metal content must stay within strict limits
Where India fits in
India has its own national standard, IS 17088, which is harmonized with the international ISO 17088 standard — the same family as ASTM D6400 and EN 13432, adapted for Indian regulatory use. This is the standard CPCB certification is actually tested against, and the one that matters for any compostable packaging manufacturer in India selling domestically.
Why the distinction matters for buyers
If you’re sourcing packaging for compostable packaging export, you may see suppliers reference ASTM D6400 or EN 13432 specifically. For the Indian market, what actually matters legally is IS 17088 and CPCB certification — a supplier citing only a US or European standard, without Indian certification, isn’t yet compliant to sell in India.
FAQ
Is EN 13432 stricter than ASTM D6400?
No — the two are considered functional equivalents, requiring the same timelines and pass criteria; the difference is which region’s regulatory system recognizes each one.
Do I need ASTM or EN certification to sell compostable products in India?
No — for the Indian market, CPCB certification (tested against IS 17088) is the legally required standard, regardless of whether a product also holds ASTM or EN certification for export markets.
What’s the difference between PLA and bagasse compostable packaging?
PLA is a plant-starch-derived bioplastic, typically used for cups, cutlery, and rigid items; bagasse is a fibrous material made from sugarcane pulp, commonly used for plates and containers — both can be certified compostable, but they suit different product types and use cases.