NS-EN ISO 1628-3:2010 塑料 使用毛细管粘度计测定稀溶液中聚合物的粘度 第3部分：聚乙烯和聚丙烯 (ISO 1628-3:2010)
Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 3: Polyethylenes and polypropylenes (ISO 1628-3:2010)
Full Description ADOPTED_FROM:EN ISO 1628-3:2010 This part of ISO 1628 defines particular conditions for determining the reduced viscosity (also known as viscosity number) and intrinsic viscosity of polyethylenes and polypropylenes at 135 °C in dilute solution. The viscosity of polymer solutions may be affected by additives present in the sample. The value of a reduced viscosity determined by this method may therefore be unreliable if the sample contains fillers or other additives. NOTE Reduced viscosity is also known as the Staudinger function (Jv) and intrinsic viscosity as the Staudinger index (Jg).