Lab & Consulting Services


OWS is an active member of several normalization organizations such as the International Standards Organization (ISO), the European Standards Organization (CEN), the American Society for Testing and Materials (ASTM) and the German Standards Organization (DIN) and is the official Belgian delegate of several ISO and CEN committees. In this capacity, OWS has developed several standard methods and is project leader of some new standards in development.

An overview of the working groups in which OWS participates is shown below.



  • Official Belgian delegate
  • TC 61/SC 5/WG 22: Biodegradable Plastics
  • TC 122/SC 4/ WG 7: Packaging and Environment – Organic Recovery
  • TC 38/ WG 30: Tests for Biodegradability
  • Official Belgian delegate
  • TC 261/SC 4/WG 2: Packaging – Degradability
  • TC 249/WG 9: Biodegradable Plastics
  • TC 411: Bio-based Products
  • D 20.96: Biodegradable Plastics
  • E 47.06: Chemical Fate
  • D 2.N.03: Eco-evaluated Hydraulic Fluids
  • D 34: Waste Management
  • FNK 103.2: Bioabbaubare Kunststoffe


In addition to the above mentioned standardization and normalization groups, OWS is also member of several industrial associations and is involved as an expert in a number of certification committees active in the field of biodegradable, compostable and/or biobased materials and products:

Certification committees

logo Vinçotte                               DIN-Certco

Industrial associations





Logo Serpbio

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About OWS

About OWS

OWS is a world leading company in the biodegradability and compostability testing of products and materials, and in waste management consultancy.