標準號：ISO 1628-6-1990
中文標準名稱：塑料 粘數和*限粘數的測定 第6部分:甲基丙烯酸甲酯聚合物
英文標準名稱：Plastics; determination of viscosity number and limiting viscosity number; part 6: methyl methacrylate polymers
標準類型：G31
發布日期：1999/12/31 12:00:00
實施日期：1990/2/1 12:00:00
中國標準分類號：G31
國際標準分類號：83.080.20
適用范圍：This part of ISO 1628 specifies the conditions to be used for the determination of the viscosity number of methyl methacrylate polymer moulding and extrusion materials in dilute solution. It applies to methyl methacrylate (MMA) homopolymers and copolymers, and mixtures of the two with a minimum of 80 % (mlm) of MMA and up to 20 % (mlm) of other monomers, with and without additives, as defined in ISO 8257-1. NOTE - The dilute-solution viscosity of polymers can be also expressed as a limiting viscosity number [η] (see annex B).