The test methods to be used for OEKO-TEX® testing for harmful substances by the authorised member institutes are summarised in the normative document “OEKO-TEX® Standard 100 – testing procedures”
The laboratory tests currently comprise around 100 test parameters and are based on international test standards and other recognised testing procedures. These also include for example simulation tests which take into account all possible ways by which harmful substances could be absorbed into the human body (orally, via the skin, by inhalation).
Testing of a textile depends on the chemicals used at each stage of processing which result in a qualitative change of the textile. The scope of the human ecological requirements is based on the intended use of the textile. The following generally applies: The more intensive the skin contact of a textile, the stricter the limit values to be met.