What Is ISO 17088:2021 For Compostable Plastics?
ISO 17088:2021 is an international standard for compostable plastics and plastic products intended for organic recycling. In simple terms, it helps confirm whether a plastic material or finished product can break down properly under controlled composting conditions without harming compost quality.
The standard is focuses on Specifications for compostable plastics. This means it does not cover normal plastic recycling or vague environmental claims. It is mainly used for plastic products that are designed to enter a managed composting or organic recycling system after use.
ISO 17088:2021 is relevant for businesses manufacturing or supplying compostable packaging, bags, films, food-service items, tableware, labels, coatings, and agricultural plastic products. It helps manufacturers, brand owners, exporters, and sustainability teams support compostability claims with proper testing, documentation, material control, and labeling evidence.
Biodegradable vs Compostable: Key Difference
Many people use biodegradable and compostable as if they mean the same thing, but they are not identical. This difference is very important when discussing ISO 17088:2021.
- A biodegradable plastic is a plastic that can be broken down by microorganisms under certain conditions. But the word “biodegradable” does not always explain how long it takes, where it breaks down, or whether it leaves harmful effects.
- A compostable plastic must meet more specific conditions. It should biodegrade and disintegrate in a composting process, while also avoiding harmful effects on compost quality, plants, and soil organisms.
This is important because buyers and regulators are becoming more careful about green claims. A product should not simply be called biodegradable or eco-friendly unless the claim is backed by reliable evidence. ISO 17088 gives businesses a clearer way to show that their compostable plastic products meet recognized specification requirements.
As global concern for plastic pollution rises, ISO 17088 provides the credibility needed for industries marketing biodegradable or compostable plastic products. It also supports regulatory compliance, eco-labeling, and strengthens consumer trust.
What Does ISO 17088:2021 Cover?
ISO 17088:2021 establishes:
- Requirements for Organic Recycling: Clear biodegradability and disintegration criteria for plastics intended for industrial composting or anaerobic digestion.
- Evaluation Methods: Test procedures to confirm whether plastics meet specified compostability or digestibility levels.
- Environmental Safety: Assessments to ensure that degradation products do not have adverse effects on the environment.
- Labeling Requirements: Guidelines for proper communication to users and regulators regarding compostable plastics.
The standard applies to both raw materials (resins) and finished products such as packaging materials, bags, tableware, and agricultural films.
ISO 17088 Specifications For Compostable Plastics
The official focus of ISO 17088:2021 is specifications for compostable plastics. This means the standard does not simply ask whether a plastic breaks down. It looks at whether the material behaves properly during composting and whether the final compost remains safe and usable.
The four main specification areas are explained below:
| ISO 17088 specification area | What it means | Why it matters |
| Disintegration during composting | The plastic product must physically break down during composting so that visible pieces do not remain in the finished compost. | This helps prevent plastic fragments from contaminating compost. |
| Ultimate aerobic biodegradation | The material must biologically degrade under aerobic composting conditions. | This shows the material is actually biodegrading, not only breaking into smaller pieces. |
| No adverse effects on terrestrial organisms | The compost produced with the plastic should not harm plants, soil organisms, or the quality of the compost. | This supports environmental safety and responsible compostability claims. |
| Control of constituents | The material, additives, inks, colorants, and other constituents must be controlled and documented. | This helps avoid harmful residues and supports safer product use. |
A practical way to understand ISO 17088 is that a product should break down physically, biodegrade biologically, avoid harming compost quality, and be made from controlled constituents.
This is why certification is not based only on the finished product’s appearance. It usually requires test reports, formulation details, supplier information, product samples, and labeling evidence.
Who Needs ISO 17088:2021 Certification?
ISO 17088:2021 certification is useful for businesses that manufacture, sell, or supply plastic products claimed to be compostable. It is especially important when customers, retailers, regulators, or procurement teams ask for proof behind sustainability claims. This certification is relevant for:
- Plastic packaging manufacturers
- Compostable bag and film producers
- Bioplastic resin and material suppliers
- Food-service packaging companies
- Retail and private-label brands
- Agricultural film manufacturers
- Exporters of compostable plastic products
- Sustainability-focused product developers
For many companies, the main benefit is not just getting a certificate. It is having a more reliable way to prove that compostability claims are based on recognized specifications, testing, and documented evidence.
Certification Process and Procedure
The ISO 17088:2021 certification process usually starts with understanding the product, its material composition, and the compostability claim being made. A clear technical review at the beginning helps avoid delays later, especially when products include printing, coatings, adhesives, additives, or multiple layers.
A practical certification process may include the following steps:
- Product and scope review: The product type, intended use, material composition, variants, sizes, and manufacturing details are reviewed.
- Testing evidence review: Available test reports for biodegradation, disintegration, ecotoxicity, heavy metals, and constituent control are checked.
- Technical documentation review: Documents such as material declarations, supplier information, product specifications, and formulation details are assessed.
- Labeling and claim review: The compostability claim, product label, packaging statement, and disposal instructions are reviewed for accuracy.
- Certification assessment: The certification body verifies whether the product and supporting evidence meet the applicable ISO 17088:2021 requirements.
- Certification decision: If the product meets the requirements, the certificate may be issued for the approved product scope.
For a smoother process, businesses should prepare their technical file before applying. This usually includes test reports, product details, supplier declarations, labeling artwork, and information about all product variants.
Documentation required For ISO 17088:2021 Certification
Before applying for ISO 17088:2021 certification, businesses should prepare a clear technical file. This helps reduce delays and makes the certification review smoother.
Useful documents may include:
- Product description and intended use
- Material composition and formulation details
- Supplier declarations for raw materials
- Details of additives, colorants, inks, adhesives, and coatings
- Product samples or product specifications
- Biodegradation and disintegration test reports
- Ecotoxicity or compost quality evidence
- Heavy metal or restricted substance test data
- Label design and compostability claim wording
- List of product variants, sizes, and thicknesses
A common mistake is submitting only a raw material certificate and assuming it covers every finished product. In practice, the final product design, printing, additives, thickness, and conversion process may affect whether the product remains suitable for certification.
ISO 17088 Testing Requirements
ISO 17088:2021 usually requires technical evidence to show that the product meets compostability expectations. This evidence may come from recognized laboratory testing, product documentation, material declarations, and review of the final product design.
Key testing and evidence areas include:
| Test or evidence area | What should be checked |
| Biodegradation | Whether the material biodegrades under controlled composting conditions. |
| Disintegration | Whether the product physically breaks down during composting. |
| Ecotoxicity | Whether the resulting compost has any harmful effect on plants or terrestrial organisms. |
| Heavy metals and restricted substances | Whether the material contains controlled levels of harmful constituents. |
| Additives, inks, and colorants | Whether all added substances are suitable and documented. |
| Labeling and claims | Whether the compostability claim is accurate, clear, and supported by evidence. |
This is important because compostability is not only a marketing claim. It must be supported by objective evidence that shows how the material performs in composting conditions.
Businesses preparing for ISO 17088 certification should collect technical documents early. This may include material composition, supplier declarations, test reports, product drawings, product variants, labeling artwork, and end-of-life instructions.
Benefits of ISO 17088:2021 Certification
ISO 17088:2021 certification helps businesses show that compostability claims are supported by recognized requirements and technical evidence. This is useful for manufacturers, exporters, brand owners, and packaging suppliers working in sustainability-focused markets.
The main benefits include:
- Stronger compostability claims: Certification helps support product claims with testing, documentation, and independent review.
- Better buyer confidence: Customers, retailers, and procurement teams are more likely to trust claims that are backed by recognized specifications.
- Reduced greenwashing risk: The standard helps businesses avoid broad or unsupported environmental claims.
- Improved market readiness: Certification can support discussions with buyers, regulators, distributors, and sustainability-focused clients.
- Support for labeling and product communication: It helps ensure compostability claims are clearer, more accurate, and easier for customers to understand.
- Useful evidence for sustainability goals: Certified products can support ESG, circular economy, and responsible packaging initiatives.
- Better control over product design: The certification process encourages businesses to review materials, additives, inks, coatings, and final product construction carefully.
For many companies, the real value of ISO 17088:2021 certification is not only the certificate. It is the ability to show that a compostable plastic product has been reviewed against defined specifications, documented evidence, and responsible product claims.
ISO 17088 Certification Cost
The cost of ISO 17088:2021 certification can vary because every product is different. A simple compostable material with complete test reports may need less review time than a finished product with multiple layers, inks, additives, coatings, or several variants.
The main factors that can affect certification fees include:
- Type of product being certified.
- Number of product variants, sizes, thicknesses, or formulations.
- Availability of valid test reports.
- Need for additional testing.
- Use of additives, colorants, inks, coatings, or adhesives.
- Number of manufacturing sites involved.
- Complexity of labeling and compostability claims.
- Scope of certification review.
Businesses should avoid estimating the fee based only on the product category. A better approach is to share the product details, technical documents, test reports, and intended certification scope so that the certification fee can be assessed more accurately.
ISO 17088 Certification Timeline
The timeline for ISO 17088:2021 certification depends mainly on whether the required test evidence is already available. If valid test reports and technical documents are ready, the certification review may move faster.
If new testing is required, the process can take longer because biodegradation, disintegration, and compost quality testing may need controlled laboratory conditions and defined observation periods.
Common factors that affect the certification duration include:
- Availability of complete test reports.
- Product complexity and formulation details.
- Number of product variants included in the scope.
- Laboratory testing requirements.
- Readiness of technical documents.
- Clarity of labeling and compostability claims.
- Response time for document corrections or additional evidence.
A practical tip is to review the product’s material composition, additives, thickness, labels, and existing test reports before starting the certification process. This helps reduce back-and-forth and makes the review more predictable.
How Pacific Certifications Can Help?
Pacific Certifications offers complete support for ISO 17088 compliance:
- Expertise in environmental standards and plastics recycling.
- From testing coordination to audit and certificate issuance.
- Accredited certifications accepted internationally.
- Guidance on maintaining certification and renewing as standards evolve.
Begin your ISO 17088 certification journey today by contacting support@pacificcert.com
FAQs for ISO 17088:2021 Plastics-Organic Recycling
What is ISO 17088:2021?
ISO 17088:2021 is an international standard that gives specifications for compostable plastics intended for organic recycling. It helps determine whether a plastic material or product can break down under composting conditions without negatively affecting compost quality.
Is ISO 17088:2021 the same as biodegradable plastic certification?
No. Biodegradable is a broader term, while compostable has more specific requirements. ISO 17088:2021 focuses on compostable plastics that must meet requirements related to biodegradation, disintegration, compost quality, and constituent control.
Does ISO 17088 apply to finished products or only raw materials?
ISO 17088 can be relevant to both plastic materials and finished products. However, finished products need careful review because printing, additives, coatings, adhesives, thickness, and product design can affect compostability.
Is ISO 17088 suitable for home compostable products?
ISO 17088 is mainly linked with controlled composting conditions, such as industrial or municipal composting. A product should not be marketed as home compostable unless separate evidence supports that specific claim.
What documents are needed for ISO 17088 certification?
Common documents include material composition, supplier declarations, test reports, product specifications, labeling artwork, additive details, and evidence related to biodegradation, disintegration, ecotoxicity, and constituent control.
How is ISO 17088 different from EN 13432 and ASTM D6400?
ISO 17088 is an international specification for compostable plastics. EN 13432 is widely used for compostable packaging in European markets, while ASTM D6400 is commonly used for plastic products intended for municipal or industrial aerobic composting facilities in ASTM-based markets.
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