Plastics. Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials. Part 2: Preparation of test specimens and determination of properties (ISO 21304-2:2021)
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This document specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of PE-UHMW moulding and extrusion materials. It gives the requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing. This document gives the procedures and conditions for the preparation of test specimens and procedures for measuring properties of the materials from which these specimens are made. Properties and test methods which are suitable and necessary to characterize PE-UHMW moulding and extrusion materials are listed. The properties have been selected from the general test methods in ISO 10350-1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this document, as are the designatory properties specified in ISO 21304-1. This document specifies the materials with MFR less than 0,1 g/10 min at 190 °C /21,6 kg based on ISO 17855-1. The methods of preparation and conditioning, the specimen dimensions and the test procedures specified in this document are used in order to obtain reproducible and comparable test results. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.
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Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Preparation of test specimens
4.1 Treatment of the material before moulding
4.2 Compression moulding
5 Conditioning of test specimens
6 Determination of properties
Annex A Method for determining the melt volume-flow rate of PE-UHMW materials (normative)
Annex B Method for determining the elongational stress of PE-UHMW moulding materials (normative)
Annex C Method for determining the Charpy double-notched impact strength of PE-UHMW moulding material (normative)
IEC 60112:2020 Method for the determination of the proof and the comparative tracking indices of solid insulating materials
IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
IEC 60296:2020 Fluids for electrotechnical applications – Mineral insulating oils for electrical equipment
IEC 60112:2020 Method for the determination of the proof and the comparative tracking indices of solid insulating materials
IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
IEC 60296:2020 Fluids for electrotechnical applications – Mineral insulating oils for electrical equipment
IEC 60695-11-10:2013 Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame test methods
IEC 62631-2-1:2018 Dielectric and resistive properties of solid insulating materials - Part 2-1: Relative permittivity and dissipation factor - Technical Frequencies (0,1 Hz - 10 MHz) - AC Methods
IEC 62631-3-1:2016 Dielectric and resistive properties of solid insulating materials - Part 3-1: Determination of resistive properties (DC methods) - Volume resistance and volume resistivity - General method
IEC 62631-3-2:2015 Dielectric and resistive properties of solid insulating materials - Part 3-2: Determination of resistive properties (DC methods) - Surface resistance and surface resistivity
ISO 10350-1:2017 Plastics -- Acquisition and presentation of comparable single-point data -- Part 1: Moulding materials
ISO 1133-1:2011 Plastics -- Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics -- Part 1: Standard method
ISO 11357-2:2020 Plastics -- Differential scanning calorimetry (DSC) -- Part 2: Determination of glass transition temperature and step height
ISO 11357-3:2018 Plastics -- Differential scanning calorimetry (DSC) -- Part 3: Determination of temperature and enthalpy of melting and crystallization
ISO 11359-2:1999 Plastics -- Thermomechanical analysis (TMA) -- Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature
ISO 1183-1:2019 Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pycnometer method and titration method
ISO 1183-2:2019 Plastics -- Methods for determining the density of non-cellular plastics -- Part 2: Density gradient column method
ISO 15527:2018 Plastics -- Compression-moulded sheets of polyethylene (PE-UHMW, PE-HD) -- Requirements and test methods
ISO 1628-3:2010 Plastics -- Determination of the viscosity of polymers in dilute solution using capillary viscometers -- Part 3: Polyethylenes and polypropylenes
ISO 178:2019 Plastics -- Determination of flexural properties
ISO 179-1:2010 Plastics -- Determination of Charpy impact properties -- Part 1: Non-instrumented impact test
ISO 20753:2018 Plastics -- Test specimens
ISO 21304-1:2019 Plastics -- Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials -- Part 1: Designation system and basis for specifications
ISO 2818:2018 Plastics -- Preparation of test specimens by machining
ISO 291:2008 Plastics -- Standard atmospheres for conditioning and testing
ISO 293:2004 Plastics -- Compression moulding of test specimens of thermoplastic materials
ISO 4589-2:2017 Plastics -- Determination of burning behaviour by oxygen index -- Part 2: Ambient-temperature test
ISO 527-1:2019 Plastics -- Determination of tensile properties -- Part 1: General principles
ISO 527-2:2012 Plastics -- Determination of tensile properties -- Part 2: Test conditions for moulding and extrusion plastics
ISO 527-4:1997 Plastics -- Determination of tensile properties -- Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites
ISO 62:2008 Plastics -- Determination of water absorption
ISO 75-1:2020 Plastics -- Determination of temperature of deflection under load -- Part 1: General test method
ISO 75-2:2013 Plastics -- Determination of temperature of deflection under load -- Part 2: Plastics and ebonite
ISO 8256:2004 Plastics -- Determination of tensile-impact strength
ISO 899-1:2017 Plastics -- Determination of creep behaviour -- Part 1: Tensile creep