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OK Biobased Certificate

Material origin

Independent testing of biobased (renewable) carbon share verified by TÜV Austria, expressed as a one-to-four-star rating: one star for 20–40% renewable carbon, two for 40–60%, three for 60–80%, and four stars above 80%.

You might see it written as: OK Biobased · OK biobased · TÜV Austria OK biobased · OK biobased certified

Issued by: TÜV Austria (formerly Vinçotte)

This entry is in review — facts are authored but not yet verified against current issuer documentation.

What it proves

Independent testing of biobased (renewable) carbon share verified by TÜV Austria, expressed as a one-to-four-star rating: one star for 20–40% renewable carbon, two for 40–60%, three for 60–80%, and four stars above 80%.

What it does not prove

  • Biodegradability or compostability — TÜV Austria issues those as separate marks (OK compost, OK biodegradable); OK biobased proves neither.
  • A lower carbon footprint — renewable carbon origin does not by itself prove lower lifecycle emissions.
  • Full biobased composition — even four stars means above 80%, not 100%.
  • Anything about how the biomass was grown or sourced.

Claims it can support

Evidence checklist

Minimum authority
Third-party verified
Should state
Certificate Number · Star Rating · Biobased Carbon Percentage · Valid Until · Product Scope
Date sensitivity
Expiry matters — check the certificate is current.

Always capture the star rating and the underlying percentage — 'OK biobased' alone spans 20% to over 80% renewable carbon.

The star rating measures the share of renewable carbon in total carbon, so products with little organic carbon overall need scrutiny of scope.

Do not conflate with TÜV Austria's OK compost or OK biodegradable marks, which certify different properties.

Source: TÜV Austria — OK biobased ↗