IS 3400 : Part 14 : Sec 2 : 2021/ISO 814 : 2017 Methods of test for Vulcanized Rubbers - Part 14 Adhesion of Rubber to Metal - Section 2 Two-plate method

ICS 83.060 PCD 29

New Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 14/Sec 2) (Second Revision) which is identical with ISO 814 : 2017 ‘Rubber, vulcanized or thermoplastic — Determination of adhesion to metal — Two-plate method’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Methods of Test for Rubber and Rubber Products Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.

The first revision of this Indian Standard was published in 1984.

The need for a standard method for the determination of bond strength between rubber and metal has been felt for the standardization of quality in different rubber Products like resilient mounting and engine mounting. The reasons for failure of bonds in these articles are rather complicated in service, due to local stress concentration either by a suddenly imposed excessive shock or due to fatigue under different dynamic conditions. However, it was considered essential to formulate a standard method of test under Standard laboratory conditions to provide data for the development and control of rubber compounds and their methods of manufacture.

Three methods were prescribed in this standard: Method A covers the procedure for testing the strength of rubber to metal bonds by separation where the rubber part is adhering to a metal surface while method B, covers the procedure for measuring the force required to cause the rupture of a unit of standard dimensions, comprising rubber bonded to two parallel metal plates. Method C which has been included in this revision specifies a method for measuring the static vulcanized adhesion strength of rubber compound where test piece is composed of two conical ends of a rigid material joined by a cylinder of rubber. The first revision was based on ISO 813, ISO 814 and ISO 5600.