National foreword

This British Standard is the UK implementation of . It supersedes BS EN ISO 527‑2:1996 which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee PRI/21, Testing of plastics.

A list of organizations represented on this committee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2012.

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 527‑2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 2, Mechanical properties.

This second edition cancels and replaces the first edition (ISO 527‑2:1993), which has been technically revised.

ISO 527 consists of the following parts, under the general title Plastics — Determination of tensile properties:

Part 1: General principles
Part 2 :Test conditions for moulding and extrusion plastics
Part 3: Test conditions for films and sheets
Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites
Part 5: Test conditions for unidirectional fibre-reinforced plastic composites

Foreword

This document (EN ISO 527‑2:2012) has been prepared by Technical Committee ISO/TC 61 "Plastics" in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2012, and conflicting national standards shall be withdrawn at the latest by August 2012.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 527‑2:1996.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Endorsement notice

The text of ISO 527‑2:2012 has been approved by CEN as a EN ISO 527‑2:2012 without any modification.

1 Scope

1.1

This part of ISO 527 specifies the test conditions for determining the tensile properties of moulding and extrusion plastics, based upon the general principles given in ISO 527‑1.

1.2

The methods are selectively suitable for use with the following range of materials:

rigid and semi-rigid thermoplastics moulding, extrusion and cast materials, including compounds filled and reinforced by, for example, short fibres, small rods, plates or granules but excluding textile fibres (see ISO 527‑4 and ISO 527‑5). See ISO 527‑1:2012, Clause 3 for the definition of "rigid" and "semi-rigid".
rigid and semi-rigid thermosetting moulding and cast materials, including filled and reinforced compounds but excluding textile fibres as reinforcement (see ISO 527‑4 and ISO 527‑5);
thermotropic liquid crystal polymers.

The methods are not normally suitable for use with rigid cellular materials or sandwich structures containing cellular material. For rigid cellular materials see ISO 1926.

The methods are not suitable for flexible films and sheets, of thickness smaller than 1 mm, see ISO 527‑3.

1.3

The methods are applied using specimens which may be either moulded to the chosen dimensions or machined, cut or punched from injection- or compression-moulded plates. The multipurpose test specimen is preferred (see ISO 20753).

2 Normative references

3 Terms and definitions

4 Principle and methods

5 Apparatus

5.1 General

5.2 Extensometer

5.3 Recording of data

6 Test specimens

6.1 Shape and dimensions

6.2 Preparation of test specimens

6.3 Gauge marks

6.4 Checking the test specimens

6.5 Anisotropy

6.6 Number of test specimens

7 Conditioning

8 Procedure

9 Calculation and expression of results

10 Precision

11 Test report

Bibliography

BS EN ISO 527-2:2012

Plastics. Determination of tensile properties - Test conditions for moulding and extrusion plastics

Published:

31 Mar 2012

Withdrawn:

30 Jun 2025