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.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of ISO document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

ISO draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s) which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 11, Products.

This second edition cancels and replaces the first edition ( ISO 15105-2:2003 ), which has been technically revised.

The main changes are as follows:

The title has been changed to conform with the ISO/IEC Directives Part 2;
Formula (B.1) has been corrected;
general temperature and pressure for converting gas from moles to volume have been added to the note in Formulae (A.2) and (B.2);
temperature and pressure used for converting gas from moles to volume have been added in the test report.

A list of all parts in the ISO 15105 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

1 Scope

This document specifies a method for the determination of the gas-transmission rate of any plastic material in the form of film, sheeting, laminate, co-extruded material or flexible plastic-coated material.

Specific examples, currently in use, of the method are described in the annexes.

2 Normative references

3 Terms and definitions

4 Principle

5 Test specimens

5.1

5.2

5.3

5.4

6 Conditioning and test temperature

6.1 Conditioning

6.2 Test temperature

7 Apparatus and materials

7.1 General

7.2 Test gas

7.3 Transmission cell

7.4 Detection and measurement

8 Diffusion conditions

9 Procedure

9.1

9.2

9.3

9.4

9.5

9.6

9.7

9.8

9.9

9.10

10 Expression of results

11 Precision

12 Test report