IS/IEC 60068 : Part 2 : Sec 14 : 2023 Environmental Testing - Part 2 Tests - Section 14 Test N: Change of Temperature
NATIONAL FOREWORD
This Indian Standard (Part 2/Sec 14) which is Identical to IEC 60068-2-14 : 2023 'Environmental testing - Part 2-14: Tests - Test N: Change of temperature' issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendations of the Environmental Testing Procedure Sectional Committee and approval of the Electronics and Information Technology Division Council.
This Indian Standard was first published in 2022 and was identical to IEC 60068 Part 2/Sec 14 : 2009. The first revision of the Indian Standard has been taken up to align it with the latest version of IEC 60068-2-14 : 2023.
The main changes are as follows:
a) Updating of the figures for clarification purposes;
b) Updating of specimen temperature(s) and severities as well as tolerances for change of temperature tests; and
c) Revision of standardized requirements for test reports for Tests Na and Nb.
The text of IEC 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' appears 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.