# Marking/symbols for packaging **URL:** https://forum.esda.org/t/marking-symbols-for-packaging/743 **Category:** General Discussion **Created:** [June 12, 2024, 11:16pm UTC](https://forum.esda.org/t/marking-symbols-for-packaging/743 "2024-06-12T23:16:36Z") **Posts on this page:** 3 **Page:** 1
### Author: ![i3chzlive](https://forum.esda.org/letter_avatar_proxy/v4/letter/i/8e7dd6/32.png) [@i3chzlive](https://forum.esda.org/u/i3chzlive) #### Post date: [June 12, 2024, 11:16pm UTC](https://forum.esda.org/t/marking-symbols-for-packaging/743/1 "2024-06-12T23:16:36Z")
Good day. I have some doubt regarding to which kind of symbol must be placed at packaging materials. The material will be packed in the following way: 5 conductive trays inside a conductive box. Should the ESD Protective Symbol be in the trays and also in the box? Should The ESD Susceptibility Symbol be in the trays as a warning of ESDS? What would be the appropriate symbols on the packaging? Thanks for your support. ---
### Author: ![JohnK](https://forum.esda.org/user_avatar/forum.esda.org/johnk/32/24_2.png) [@JohnK](https://forum.esda.org/u/JohnK) #### Post date: [June 13, 2024, 5:05pm UTC](https://forum.esda.org/t/marking-symbols-for-packaging/743/2 "2024-06-13T17:05:56Z")
There is no set standard on where and when to mark. In my opinion, I would consider what is the marking suppose to convey to the next process step, next customer or if the package is going to a distribution center. Once you understand where and what the marking is going to be used for, then determine the marking that makes sense. ANSI/ESD S20.20 requires that marking is considered. It may be that marking is not done. ---
### Author: ![esdtekniks](https://forum.esda.org/letter_avatar_proxy/v4/letter/e/f14d63/32.png) [@esdtekniks](https://forum.esda.org/u/esdtekniks) #### Post date: [June 17, 2024, 9:28am UTC](https://forum.esda.org/t/marking-symbols-for-packaging/743/3 "2024-06-17T09:28:00Z")
Hello, However as stated by ESDA experts (Mr. John K) ANSI/ESD S20.20.2021 requires that marking is considered. You may please refer to the \*\ ***clause 8.5 Marking** \*\*from ANSI/ESD S 20.20.2021 and the different symbols to be used per ANSI/ESD S8.1 which would perhaps get you a clear picture on what /when /where to use the recommended respective symbols.