2019EN ISO 307:2019 Plastics - Polyamides - Determination of viscosity number (ISO 307:2019)
2013EN ISO 307:2007/A1:2013 Plastics - Polyamides - Determination of viscosity number - Amendment 1: Corrections, and update to reference to JIS K 6920-2 (ISO 307:2007/Amd 1:2013)
2007EN ISO 307:2007 Plastics - Polyamides - Determination of viscosity number (ISO 307:2007)
2003EN ISO 307:2003 Plastics - Polyamides - Determination of viscosity number ISO 307: 2003
1997EN ISO 307:1997 Plastics - Polyamides - Determination of Viscosity Number ISO 307: 1994