Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 5) (Fourth Revision) which is identical with ISO 36 : 2020 ‘Rubber, vulcanized or thermoplastic - Determination of adhesion to textile fabrics’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation(s) of the Methods of Test for Rubber and Rubber Products Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.

This Indian Standard was originally published in 1965 and subsequently revised in 1983 and 1986. First revision was carried out to align it with ISO/R 36-1969 ' Determination of the adhesion strength of vulcanized rubbers to textile fabrics’, issued by the International Organization for Standardization. In the first revision, two methods were prescribed, namely, Method A, Machine method, based on ISO/R 36-1969 and Method B based on BS 903 (Part A-12)-1959. Lately British Standards Institution (BSI) has revised the above standard and have retained the 'machine method' deleting the static mass method.

Accordingly, in the second revision ‘Static mass method ' which is also not internationally approved, has been deleted for obvious reasons like lack of precision and in accurate results. ‘Machine method ' which was based on ISO/DIS 36 Rubber Vulcanized - Determination of adhesion to textile fabric has been retained. This method covers procedure for measuring the force required to separate, by stripping two plies of fabrics bonded with rubber or a rubber layer bonded with fabric ply. Further by using this method variation in adhesion strength over the test piece may also be determined. Apart from this all other changes considered necessary to align this standard with International standards or the National standards of other countries have also been included.