Rigid cellular plastics — Determination of tensile properties

ISO 1926:2005 specifies a method of determining the behaviour of rigid cellular plastics materials when they are subjected to a tensile stress. It applies primarily to cellular materials having a compression resistance sufficient to permit suitable gripping of the test specimens. If it is impossible to grip the test specimen, the method is modified so that the ends of the specimen are reinforced with metal plates.

Plastiques alvéolaires rigides — Détermination des caractéristiques en traction

General Information

Status
Withdrawn
Publication Date
21-Jun-2005
Withdrawal Date
21-Jun-2005
Current Stage
9599 - Withdrawal of International Standard
Start Date
17-Nov-2009
Completion Date
17-Nov-2009
Ref Project

RELATIONS

Buy Standard

Standard
ISO 1926:2005 - Rigid cellular plastics -- Determination of tensile properties
English language
6 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 1926
Third edition
2005-07-15
Rigid cellular plastics — Determination of
tensile properties
Plastiques alvéolaires rigides — Détermination des caractéristiques en
traction
Reference number
ISO 1926:2005(E)
ISO 2005
---------------------- Page: 1 ----------------------
ISO 1926:2005(E)
PDF disclaimer

This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall

not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In

downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat

accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.

Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation

parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the

unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

© ISO 2005

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii ISO 2005 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 1926:2005(E)
Contents Page

1 Scope .................................................................................................................................................... 1

2 Normative references .......................................................................................................................... 1

3 Principle ................................................................................................................................................ 1

4 Apparatus ............................................................................................................................................. 1

5 Test specimens .................................................................................................................................... 2

6 Procedure (general method) ............................................................................................................... 2

7 Calculation and expression of results ............................................................................................... 3

8Variant — Use of metal plates ............................................................................................................ 4

9 Precision ............................................................................................................................................... 6

10 Test report ............................................................................................................................................ 6

ISO 2005 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 1926:2005(E)
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 1926 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 10, Cellular plastics.

This third edition cancels and replaces the second edition (ISO 1926:1979), which has been technically revised.

iv ISO 2005 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 1926:2005(E)
Rigid cellular plastics — Determination of tensile properties
1Scope

This International Standard specifies a method of determining the behaviour of rigid cellular plastics materials

when they are subjected to a tensile stress.

It applies primarily to cellular materials having a compression resistance sufficient to permit suitable gripping of

the test specimens. If it is impossible to grip the test specimen, the method is modified so that the ends of the

specimen are reinforced with metal plates (see Clause 8).

The relationship between cell size and test specimen size must be such that the test is realistic.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced document

(including any amendments) applies.
ISO 291, Plastics — Standard atmospheres for conditioning and testing

ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method

for the determination of repeatability and reproducibility of a standard measurement method

3 Principle

A test specimen of a given shape is subjected to a tensile stress transmitted to the test specimen by means of

a suitable device and corresponding stress-strain curve is plotted.
4 Apparatus
The test machine shall be such that:

a) It has clamps suitable for holding the test specimen. These clamps shall meet the following requirements:

1) they shall close sufficiently tightly on the faces of the test specimen to avoid slipping;

2) they shall not exert, on any part of the ends of the test specimen, localized pressure which could cause

tears, deformations or ruptures.
In cases of difficulty, use the variant described in Clause 8.

b) The movable clamp can be moved, with the test specimen in place, away from the fixed clamp at a constant

speed of (5 ± 1) mm/min in a direction parallel to the longitudinal axis of the test specimen.

c) The force thus exerted on the test specimen can be determined with a maximum error of 1%, and can be

recorded.

d) If an extensometer is used, it shall exert a minimum force on the test specimen and shall permit the increase

in gauge length of the test specimen to be read to an accuracy of 0,1 mm. The distance between the two

parallel surfaces defining the extensometer gauge length shall not vary by more than 1% (tolerance on

parallelism).
ISO 2005 – All rights reserved
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.