EN13432 Certified Compostable Mailers (B2B Compliance Guide)
EN13432 is the European standard for industrially compostable packaging, widely used to evaluate compostable mailer bags, courier bags, and postage packaging supplied to B2B markets.
This page explains what EN13432 certification means, how it applies to compostable mailer products, and what B2B buyers should verify when sourcing certified compostable packaging.
What Is EN13432 Certification?
EN13432 is a European standard that defines the requirements for packaging materials to be considered industrially compostable.
To comply with EN13432, a product must demonstrate:
- Biodegradation under controlled composting conditions
- Disintegration during the composting process
- No negative impact on compost quality
- Compliance with limits on heavy metals and ecotoxicity
EN13432 focuses on measured performance in industrial composting systems, not general biodegradability claims.
Which Compostable Products Can Be EN13432 Certified?
A common misunderstanding among buyers is assuming that EN13432 certification applies to an entire factory or brand.
In practice, EN13432 certification applies to specific products, based on defined specifications such as:
- Material formulation (e.g. PLA / PBAT blends)
- Bag thickness and structure
- Printing coverage and ink systems
- Adhesives and sealing components
As a result, not all compostable mailer bags produced by the same manufacturer are automatically EN13432 certified.
This distinction is especially important for B2B buyers seeking to avoid greenwashing risks.
EN13432 Certified Mailers vs Non-Certified Alternatives
Not all products marketed as “biodegradable” or “eco-friendly” meet EN13432 requirements.
Key differences include:
- EN13432 certified mailers are tested against a recognised industrial composting standard
- Non-certified alternatives may lack verified composting performance
- Certification provides third-party validation and traceability
For regulated markets and B2B procurement, EN13432 certification serves as a clear compliance benchmark.
EN13432 vs ASTM D6400 – Understanding the Difference
EN13432 and ASTM D6400 are often compared, but they apply to different regulatory regions.
- EN13432 is commonly referenced in European markets
- ASTM D6400 is widely used in North America
Both standards assess industrial compostability, but testing protocols and acceptance frameworks differ.
B2B buyers should select certification standards based on target market requirements, not marketing terminology.
How Buyers Can Verify EN13432 Certification
To verify whether compostable mailer bags are EN13432 certified, buyers should:
- Request product-specific certification documents
- Confirm that certification matches the bag’s material, thickness, and structure
- Verify certification logos and certificate numbers with authorised bodies
Certification should always be linked to a defined product specification, not to a general factory claim.
EN13432 Certified Compostable Mailers Products We Supply (B2B Only)
We manufacture and supply EN13432 certified compostable packaging for global B2B markets, including:
- EN13432 certified compostable mailer bags
- EN13432 certified compostable courier bags for e-commerce fulfilment
- EN13432 certified compostable postage and shipping bags
Certification availability depends on product structure and specification.
Who EN13432 Certification Is For — and Not For
Relevant for:
- B2B packaging procurement teams
- E-commerce and logistics operators
- Importers and distributors serving regulated markets
Not intended for:
- Consumer assumptions about home composting
- Unverified “biodegradable” packaging claims
Understanding certification scope helps buyers make accurate sustainability and compliance decisions.
Manufacturer Strength & Trust
Choosing us means choosing a PLA PBAT compostable mailers manufacturer with strong capabilities and rigorous standards. We are committed to providing high-quality durable bulk compostable mailers to B2B clients worldwide.
