| test method: | optical tests | 
| Norms: | ASTM D 523 (2014) ASTM D 2457 (2013) DIN EN ISO 2813 (2015-02) | 
| Needed sample size: | at least 1 x DIN A 4, without folds, wrinkles, scratches, pollution | 
 Matthias Böhne
    
        Matthias Böhne 
         +49 441 94986-11
 +49 441 94986-11 matthias.boehne@innoform.de
 matthias.boehne@innoform.de