Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 6/Sec 10) (Second Revision) which is identical to ISO 3146 : 2022 ‘Plastics - Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Methods of Sampling and Test for Plastics Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.

This standard was originally published in 1992 and subsequently revised in 2000. This revision of standard has been undertaken to align with latest version of ISO 3146 : 2022. Major changes are as follows:

a) The specifications of the apparatus and measurement procedure have been revised; and

b) The table of calibration standards has been revised by adding further entries, synonyms and CAS numbers of organic chemicals, correcting errors and modifying melting temperatures according to added references.