# Hello experts,I recall seeing an evaluation of compliance testing frequency in a certain standard. May I ask in which standard this description can be found?

**URL:** https://forum.esda.org/t/hello-experts-i-recall-seeing-an-evaluation-of-compliance-testing-frequency-in-a-certain-standard-may-i-ask-in-which-standard-this-description-can-be-found/1350
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**Created:** [April 13, 2026, 12:58am UTC](https://forum.esda.org/t/hello-experts-i-recall-seeing-an-evaluation-of-compliance-testing-frequency-in-a-certain-standard-may-i-ask-in-which-standard-this-description-can-be-found/1350 "2026-04-13T00:58:12Z")
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### Author: ![tingjunyang](https://forum.esda.org/letter_avatar_proxy/v4/letter/t/cc9497/32.png) [@tingjunyang](https://forum.esda.org/u/tingjunyang)
#### Post date: [April 13, 2026, 12:58am UTC](https://forum.esda.org/t/hello-experts-i-recall-seeing-an-evaluation-of-compliance-testing-frequency-in-a-certain-standard-may-i-ask-in-which-standard-this-description-can-be-found/1350/1 "2026-04-13T00:58:12Z")

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Hello experts,I recall seeing an evaluation of compliance testing frequency in a certain standard. May I ask in which standard this description can be found?

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### Author: ![esdtekniks](https://forum.esda.org/letter_avatar_proxy/v4/letter/e/f14d63/32.png) [@esdtekniks](https://forum.esda.org/u/esdtekniks)
#### Post date: [April 13, 2026, 9:49am UTC](https://forum.esda.org/t/hello-experts-i-recall-seeing-an-evaluation-of-compliance-testing-frequency-in-a-certain-standard-may-i-ask-in-which-standard-this-description-can-be-found/1350/2 "2026-04-13T09:49:53Z")

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Hello  
Greetings of the day from India to all the members on the forum .

There is no set CV test frequency in either of the two global standards ( ANSI ESD S20.20. & IEC 61340-5-1) but are user defined and set based on their class of components and devices handled in their respective EPAs.

However, from the following link  
[https://desco.descoindustries.com/Articles/ESDControlProgramPeriodic.pdf](https://desco.descoindustries.com/Articles/ESDControlProgramPeriodic.pdf)  
an article " **ESD Control Program Periodic**  
**Verification "** from Desco Industries in the conformity magazine of March 2004 may be of some assistance to you .