ISO 1133:1997

Plastics — Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics

Describes a method for the determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MFR) of thermoplastics under specified conditions of temperature and load. Does not apply to thermoplastics for which the rheological behaviour is affected by hydrolysis, condensation or crosslinking. Replaces the second edition.