Standard

SN EN ISO 1133-2:2012

Feb 2012 Current

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Abstract

ISO 1133-2:2011 specifies a procedure for the determination of the melt volume-flow rate (MVR) and melt mass-flow rate (MFR) of thermoplastic materials that exhibit a high rheological sensitivity to the time-temperature history experienced by the sample during the test and/or to moisture. It is possible that this method will not be appropriate for materials whose rheological behaviour is extremely affected during testing. MFR values can be determined by calculation from MVR measurements provided the melt density at the test temperature and pressure is known, or by measurement using a cutting device provided that the accuracy of the measurement is at least the same as that of the MVR measurement. The primary difference between ISO 1133-2:2011 and ISO 1133-1 is that ISO 1133-2:2011 specifies tighter tolerances on the temperature in the cylinder and on the time duration over which the material is subjected to that temperature. Thus the time-temperature history of the material is more tightly controlled and consequently, for materials that are likely to be affected by exposure to elevated temperatures, the variability of test results is reduced compared with whether the specifications of ISO 1133-1 were used. ISO 1133-2:2011 also prov

Products specifications

Standard from INB
Published: February 1 2012
Effective: February 1 2012
Document type: EN
Pages
ISBN:

ICS: 83.080.20
Publisher: SNV
Distributor: SNV
National Committee: INB/NK 177

Product Relations

Adopted from: ISO 1133-2:2011, IDT
Replaces: SN EN ISO 1133:2005

SN EN ISO 1133-2:2012

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