IS 13360 : Part 6 : Sec 1 : 2025/ISO 306 : 2022 Plastics - Methods of Testing - Part 6 Thermal Properties - Section 1 Determination of Vicat Softening Temperature of Thermoplastic Materials
NATIONAL FOREWORD
This Indian Standard (Part 6/Sec 1) (Third Revision) which is identical to ISO 306 : 2022 'Plastics - Thermoplastic materials - Determination of vicat softening temperature (VST)' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendations of the Methods of Sampling and Test for Plastics Sectional Committee and approval of the Petroleum, Coals and Related Products Division Council.
This standard was first published in 1992 and subsequently revised in 1999 and 2018. This revision has been brought out to align with the latest version of ISO 306.
The major changes in this revision are as follows:
a) The document has been updated to allow for the use of commercial universal equipment (that is covering both ISO 75 and ISO 306) and modern testing practices.
For details on additional parts, sections, or subsections of this series, refer to IS 13360 (Part 1).
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'; and
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.