ISO 1133:2005
Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics

Standard No.

ISO 1133:2005

Release Date

2005

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 1133:2005/Cor 1:2006

Latest

ISO 1133:2005/Cor 1:2006

Scope

This International Standard specifies two procedures for the determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastic materials under specified conditions of temperature and load. Procedure A is a mass-measurement method. Procedure B is a displacement-measurement method. Normally, the test conditions for measurement of melt flow rate are specified in the material standard with a reference to this International Standard. The test conditions normally used for thermoplastics are listed in Annexes A and B. The MVR will be found particularly useful when comparing materials of different filler content and when comparing filled with unfilled thermoplastics. The MFR can be determined from MVR measurements provided the melt density at the test temperature and pressure is known. These methods are in principle also applicable to thermoplastics for which the rheological behaviour is affected during the measurement by phenomena such as hydrolysis, condensation or crosslinking, but only if the effect is limited in extent and only if the repeatability and reproducibility are within an acceptable range. For materials which show significantly affected rheological behaviour during testing, these methods are not appropriate. In such cases, the use of the viscosity number in dilute solution, determined in accordance with the relevant part of ISO 1628, is recommended for characterization purposes. NOTE The rates of shear in these methods are much smaller than those used under normal conditions of processing, and therefore data obtained by these methods for various thermoplastics may not always correlate with their behaviour during processing. Both methods are used primarily in quality control.

ISO 1133:2005 Referenced Document

• ISO 10366-2 Plastics - Methyl methacrylate-acrylonitrile-butadiene-styrene (MABS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
• ISO 15494 Plastics piping systems for industrial applications — Polybutene (PB), polyethylene (PE), polyethylene of raised temperature resistance (PE-RT), crosslinked polyethylene (PE-X), polypropylene (PP) — M*， 2020-11-02 Update
• ISO 15876-3 Plastics piping systems for hot and cold water installations — Polybutene (PB) — Part 3: Fittings — Amendment 2*， 2021-10-13 Update
• ISO 1622-2 Plastics - Polystyrene (PS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
• ISO 1872-2 Plastics - Polyethylene (PE) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties*， 2007-02-01 Update
• ISO 1873-2 Plastics - Polypropylene (PP) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties*， 2007-09-01 Update
• ISO 2580-2 Plastics - Acrylonitrile-butadiene-styrene (ABS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
• ISO 2897-2 Plastics - Impact-resistant polystyrene (PS-I) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
• ISO 4287 Geometrical product specifications (GPS) — Surface finish: Profile method — Surface finish terms, definitions and parameters — Amendment 2: .
• ISO 4613-2 Plastics - Ethylene/vinyl acetate (E/VAC) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties; Amendment 1
• ISO 4894-2 Plastics - Styrene/acrylonitrile (SAN) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
• ISO 6402-2 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination
• ISO 6507-1 Metallic materials — Vickers hardness test — Part 1: Test method*， 2023-08-01 Update
• ISO 7391-2 Plastics - Polycarbonate (PC) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties*， 2006-03-01 Update
• ISO 8257-2 Plastics-Poly(methy1methacrylate) (PMMA) moulding and extrusion materials- Part 2: Preparationof test specimens and determination of properties
• ISO 9988-2 Plastics - Polyoxymethylene (POM) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties*， 2006-07-01 Update

ISO 1133:2005 history

• 2006 ISO 1133:2005/Cor 1:2006 Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics; Technical Corrigendum 1
• 2005 ISO 1133:2005 Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics
• 1997 ISO 1133:1997 Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics
• 1991 ISO 1133:1991 Plastics; determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics
• 1981 ISO 1133:1981 Plastics — Determination of the melt flow rate of thermoplastics