Reaffirmed 2022

NATIONAL FOREWORD

This Indian Standard (Part 7/Sec 3) (First Revision) which is identical with IEC 60068-2-31 : 2008 ‘Environmental testing — Part 2-31: Tests — Test Ec: Rough handling shocks, primarily for equipment-type specimens’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on recommendation of the Environmental Conditions, Testing Procedures for Electronic Products Sectional Committee and approval of the Electronics and Information Technology Divisional Council.

This standard was originally published in 1979 which was based on IEC 60068-2-27 : 1972, IEC 60068-2-29 : 1968, IEC 60068-2-31 : 1969 and IEC 60068-2-32 : 1975. IEC 60068-2-27 : 1972 and IEC 60068-2-29 : 1968 have been withdrawn and replaced with IEC 60068-2-27 : 2008. IEC 60068-2-27 : 2008 has been adopted and published as IS 9000 (Part 7/Sec 1) : 2018. IEC 60068-2-31 : 1969 and IEC 60068-2-32 : 1975 have been withdrawn and replaced with IEC 60068-2-31 : 2008. IEC 60068-2-31 : 2008 has been adopted as IS 9000 (Part 7/Sec 3) : 2018.

The other parts in this series are:

Part 1 General

Part 2 Cold test

Part 3 Dry heat test

Part 4 Damp hear Steady state

Part 5 Damp heat cyclic test

Part 6 Composite temperature humidity cyclic test

Part 8 Vibration sinusoidal test

Part 9 Acceleration steady state

Part 10 Mould growth test

Part 1 1 Salt mist test

Part 12 Dust test

Part 13 Low air pressure test

Part 14 Test N Change of temp

Part 15 Sealing Test

Part 16 Driving rain test

Part 17 Radiation test

Part 18 Solderability Test

Part 19 Test U Robustness of terminations and integral mounting devices

Part 20 Resistance to cleaning solvents and permanence of markings

Part 21 Acoustics noise test

Part 22 Fine mist test

Part 23 Drip proof test

Part 25 Hydrogen sulphide test for contacts and connections

Part 26 Sulphur dioxide test for contacts and connections

Part 27 Ultrasonic cleaning test

Part 31 Combined cold low air pressure tests

Part 32 Information for specification writers - Test Summaries

The text of IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and 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’.

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.