Reaffirmed 2022

NATIONAL FOREWORD

This Indian Standard (Part 5/Sec 2) (First Revision) which is identical with ISO 527-2 : 2012 ‘Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Plastics Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.

This standard was originally published in 1996, identical with ISO 527-2 : 1993. The first revision of this standard has been undertaken to align it with the latest version of ISO 527-2 : 2012.

The main changes are as follows:

- a new sub-clause for extensometer under ‘Apparatus’ (5) has been added, for determining the relative change in the gauge length of the test specimen;

- a new sub-clause (5.3) has been added, for recording of data;

- a new sub-clause ‘Anisotropy’ (6.5) has been added;

- a new annex, Annex B, has been added, giving precision statement.

This standards (Part 5) has various sections under general title ‘Plastics - Methods of testing : Part 5 Mechanical properties’. Other sections in this series are:

Section 1 Determination of tensile properties - General principles

Section 3 Determination of tensile properties - Test conditions for films and sheets

Section 25 Determination of tensile properties - Test conditions for isotropic and orthotropic fiber-reinforced plastic composites

Section 26 Determination of tensile properties - Test conditions for unidirectional fiberreinforced plastic composites

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.