ISO 21304-2:2021
Plastics - Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties

Standard No.

ISO 21304-2:2021

Release Date

2021

Published By

International Organization for Standardization (ISO)

Latest

ISO 21304-2:2021

Scope

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.

ISO 21304-2:2021 Referenced Document

• IEC 60112 Method for the determination of the proof and the comparative tracking indices of solid insulating materials
• IEC 60243-1 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
• IEC 60296 Fluids for electrotechnical applications – Mineral insulating oils for electrical equipment
• IEC 62631-2-1 Dielectric and resistive properties of solid insulating materials - Part 2-1: Relative permittivity and dissipation factor - Technical frequencies (0,1 Hz to 10 MHz) - AC methods
• IEC 62631-3-1 Dielectric and resistive properties of solid insulating materials - Part 3-1: Determination of resistive properties (DC methods) - Volume resistance and volume resistivity - General method*， 2023-01-23 Update
• IEC 62631-3-2 Dielectric and resistive properties of solid insulating materials — Part 3-2: Determination of resistive properties (DC methods) — Surface resistance and surface resistivity*， 2023-10-16 Update
• ISO 10350-1 Plastics - Acquisition and presentation of comparable single-point data - Part 1: Moulding materials
• ISO 1133-1 Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics — Part 1: Standard method*， 2022-06-23 Update
• ISO 11357-2 Plastics — Differential scanning calorimetry (DSC) — Part 2: Determination of glass transition temperature and step height
• ISO 11357-3 Plastics - Differential scanning calorimetry (DSC) - Part 3: Determination of temperature and enthalpy of melting and crystallization
• ISO 11359-2 Plastics — Thermomechanical analysis (TMA) — Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature*， 2021-11-12 Update
• ISO 1183-1 Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion method, liquid pycnometer method and titration method
• ISO 1183-2 Plastics — Methods for determining the density of non-cellular plastics — Part 2: Density gradient column method
• ISO 15527 Plastics — Compression-moulded sheets of polyethylene (PE-UHMW, PE-HD) — Requirements and test methods*， 2022-02-10 Update
• ISO 1628-3 Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 3: Polyethylenes and polypropylenes
• ISO 178 Surface chemical analysis — Secondary ion mass spectrometry — Linearity of intensity scale in single ion counting time-of-flight mass analysers
• ISO 179-1 Plastics. Determination of Charpy impact properties - Non-instrumented impact test*， 2023-06-07 Update
• ISO 20753 Plastics*， 2023-11-01 Update
• ISO 21304-1 Plastics — Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials — Part 1: Designation system and basis for specifications
• ISO 2818 Plastics — Preparation of test specimens by machining
• ISO 291 Plastics - Standard atmospheres for conditioning and testing
• ISO 293 Plastics — Compression moulding of test specimens of thermoplastic materials*， 2023-02-21 Update
• ISO 4589-2 Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature test
• ISO 527-1 Plastics — Determination of tensile properties — Part 1: General principles
• ISO 527-2 Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics
• ISO 527-4 Plastics — Determination of tensile properties — Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites*， 2023-03-24 Update
• ISO 62 Plastics - Determination of water absorption
• ISO 75-1 Plastics — Determination of temperature of deflection under load — Part 3: High-strength thermosetting laminates and long-fibre-reinforced plastics
• ISO 75-2 Plastics - Determination of temperature of deflection under load - Part 2: Plastics and ebonite
• ISO 8256 Plastics*， 2023-11-01 Update
• ISO 899-1 Plastics - Determination of creep behaviour - Part 1: Tensile creep

ISO 21304-2:2021 history

• 2021 ISO 21304-2:2021 Plastics - Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties