The OEKO-TEX® Association has approved testing in accordance with the ISO/IWA 32 protocol as proof of compliance with the GMO testing requirement for STANDARD 100 certification of untreated organic cotton. This new method is an additional option to the familiar OEKO-TEX® GMO test developed with Hohenstein.
Both approved methods are founded on very high standards and meet the stringent quality requirements of OEKO-TEX®. The elimination of further GMO testing simplifies the STANDARD 100 by OEKO-TEX® certification process for applicants who have already had their untreated cotton tested as compliant with ISO/IWA 32.
The ISO/IWA 32 testing protocol was developed by the International Organization for Standardization (ISO) International Workshop Agreement (IWA). The test includes analyses of genetically modified organisms (GMOs) in materials obtained from cotton seeds, leaves, and fibers. ISO/IWA 32 tested organic cotton is certified to be free from genetically modified organisms.