Plastics. Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials. Part 2: Preparation of test specimens and determination of properties (ISO 21309-2:2019)
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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 ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials. It gives requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing. This document describes 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 EVOH moulding and extrusion materials are listed in this document. 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 is the melt mass-flow rate designatory property specified in ISO 21309-1. In order to obtain reproducible and comparable test results, it is intended to use the methods of specimen preparation and conditioning, the specimen dimensions and the test procedures specified herein. 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 General
4.2 Treatment of the material before moulding
4.3 Injection moulding
4.4 Preparation of film specimens
5 Conditioning of test specimens
5.1 General
5.2 Dry-as-moulded (DAM) state
5.3 Moist state
5.4 Film conditioning
6 Determination of properties
Annex A Determination of volatile matter (including water) (normative)
Annex B Determination of ethylene content (normative)
Annex C Determination of steady-state rate of transmission of oxygen gas through ethylene/vinyl alcohol copolymer in the form of film using a coulometric sensor (normative)
Annex A Determination of volatile matter (including water) (normative)
Annex B Determination of ethylene content (normative)
Annex C Determination of steady-state rate of transmission of oxygen gas through ethylene/vinyl alcohol copolymer in the form of film using a coulometric sensor (normative)
IEC 60112:2003
IEC 60243-1:2013
IEC 60250:1969
IEC 60296:2012
IEC 60695-11-10:2013
IEC 62631-3-1:2016
IEC 62631-3-2:2015
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 1183-1:2012 Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method
ISO 178:2010 Plastics -- Determination of flexural properties
ISO 179-1:2010 Plastics -- Determination of Charpy impact properties -- Part 1: Non-instrumented impact test
ISO 180:2000 Plastics -- Determination of Izod impact strength
ISO 2039-2:1987 Plastics -- Determination of hardness -- Part 2: Rockwell hardness
ISO 20753:2018 Plastics -- Test specimens
ISO 21309-1:2019 Plastics -- Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials -- Part 1: Designation system and basis for specifications
ISO 291:2008 Plastics -- Standard atmospheres for conditioning and testing
ISO 294-2:2018 Plastics -- Injection moulding of test specimens of thermoplastic materials -- Part 2: Small tensile bars
ISO 306:2013 Plastics -- Thermoplastic materials -- Determination of Vicat softening temperature (VST)
ISO 3146:2000 Plastics -- Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
ISO 3451-1:2008 Plastics -- Determination of ash -- Part 1: General methods
ISO 527-1:2012 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 75-1:2013 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 899-1:2017 Plastics -- Determination of creep behaviour -- Part 1: Tensile creep