There is one requirement, If personnel are required to display employee badge within EPA area, the material used to hold the employee badge shall be less than 100 volts. Material includes but is not limited to: Employee badge, badge holder, lanyard material, badge reel, strap clip.
Currently we are maintaining to keep employee badge inside the apron when entering and working in EPA area.
We received few samples of ESD safe ID holder but it’s local and looks not good.
So could you please advise and suggest if any standard ESD Safe ID holder.
I did a quick Google search and found there are many ESD safe badge holders on the market if you need one (see picture below). I think your best solution is what you are trying to do and that is keep the badges inside the ESD garment. If you are doing a compliance verification measurement for the badges, remember you should do this in the actual working conditions, with the badge worn against a person without artificially tribocharging the badge. Likely any badge will not exceed 100 volts as the person’s body will supress most of the voltage
You could apply a staticide to the badge holders which would reduce any tribocharging although it would likely need to be reapplied every few months.
We have received the same samples which you google but our management team is asking for better solution with standard ID holder sample.
We had done the measurement of Badge and not generating static voltage more than 100V at normal condition ( Observed voltage is 41Volts ) but if we check static voltage after rubbing/friction it is going up to 700Volts to 1KV.
The third bullet point of ESD TR53 Section 5 states “Compliance verification of the ESD control item should be performed where the electrostatic discharge sensitive (ESDS) item is likely to reside or to be handled in the process. The intent is to assess the as-found condition of the ESD control item being verified. There should be no modification (for example, cleaning, rubbing, moving, etc.) of the ESD control item prior to verification.” So unless the people typically are rubbing their badges throughout the day, I would not recommend using the measurement after rubbing the badges as it is not the typical condition you would find the badge while working.
The risk you are trying to prevent is an electric field from the insulative badge, inductively charging your ESDS item which could then discharge to ground through contact with a conductor (e.g. person or metal object). I assume that when you say “… static voltage after rubbing/friction it is going up to 700Volts to 1KV,” I assume this is at 1 inch away using a field meter that measures in volts/inch. If this is true, then consider where the ESDS items are typically located in reference to the badge while working. I would guess the ESDS items are typically 6 to 12 inches from the badge. This would mean the voltage on the ESDS item would be significantly less than the 700 to 1000 volts you measured after artificially tribocharging it. You could measure this by placing the field meter at the distance from the badge where the ESDS items are typically handled. This is the first method prescribed in ANSI/ESD S20.20 on how to measure insulators. “Measure the field at the location where the ESDS item is handled. The electrostatic field shall be less than 5000 volts/meter (125 volts/inch).”
