STANDARD 100 by OEKO-TEX® is a global certification system assuring manufacturers, sourcers, brands, retailers, and consumers around the world that certified products meet the strict limit values for harmful substances of STANDARD 100 and that these substances are not present in critical concentrations. OEKO-TEX® originally tested for about 100 chemicals like pesticides, carcinogenic colourants and heavy metals but today STANDARD 100 covers a wide array of several hundred harmful substances. This brochure will answer some of the most frequently asked STANDARD 100 questions.