2013DIN EN ISO 307:2013 Plastics - Polyamides - Determination of viscosity number (ISO 307:2007 + Amd 1:2013); German version EN ISO 307:2007 + A1:2013
2007DIN EN ISO 307:2007 Plastics - Polyamides - Determination of viscosity number (ISO 307:2007); English version of DIN EN ISO 307:2007-08