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JIS C 60068-2-46:1993 (R2015)

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JIS C 60068-2-46:1993 (R2015)

Basic environmental testing procedures Part 2: Tests Guidance to Test Kd: Hydrogen sulphide test for contacts and connections

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Satisfactory performance during the desired lifetime of contacts and connections depends on many parameters, some of them determined by their design (type, materials, forces, etc.) and others by the environment in which they have to function. Concerning the effects of the environment, special attention must be paid to the polluting substances contained -- usually in very small amounts -- in the atmosphere. Silver and some of its alloys are peculiarly susceptible t tarnishing by the minute quantities of hydrogen sulphide that occur in many environments. The tarnish product is dark in colour and consists largely of beta-silver sulphide. Separable electrical connections employing these metals as contact materials may therefore suffer from increased contact resistance and contact noise as a result.

Author JSA
Editor JSA
Document type Standard
Format File
Confirmation date 2015-10-20
ICS 19.040 : Environmental testing
Number of pages 12
Replace JIS C 0093 (1993-09-01)
Cross references IEC 60068-2-46 (1982), IDT
Year 1990
Document history JIS C 60068-2-46 (1993-09-01)
Country Japan
Keyword JIS C 60068;JIS C 60068-2;JIS 60068;60068