Biodegradability and compostability testing
As an independent contract-research laboratory, OWS has built up a world-wide reputation in the field of biodegradability and compostability testing. In this context, the specific laboratory activities are following ISO 17025 rules as much as possible, this in combination with the rules of Good Laboratory Practices (GLP).
OWS is the only laboratory worldwide which is recognized by all certification bodies active in the field of biodegradability and compostability (click the logos below for more info):
Analyses on fertilizers and soil improvers
The general operation and activity of analyses on fertilizers and soil improvers is certified and accredited for ISO 17025. The quality system is accredited by BELAC in accordance with ISO 17025:2017.
338-TEST
Scope of the accredited analyses
In addition to this accreditation, the laboratory also has an approval by OVAM. 
This approval requires an operation according to ISO 17025. OWS has been recognized by OVAM for the following packages:
- A.2.1 gebruik als meststof/bodemverbeterend middel – anorganische parameters
https://services.ovam.be/LijstenVerwerkersEnLabos/s/lijst/137 - A.2.3 gebruik als meststof/bodemverbeterend middel – specifieke parameters
https://services.ovam.be/LijstenVerwerkersEnLabos/s/lijst/139
Inspection services
The inspection services of OWS are accredited by BELAC in accordance with ISO 17020:2012. More specifically, this accreditation covers data validation as well as conformity verification of all legal obligations related to the management of WEEE (waste of electrical and electronic equipment). Also all other inspection services are, where possible, performed in line with ISO 17020.
338-INSP
Scope of the accredited inspections
