At the moment regular and industrial SIMs are physically identical, This has been addressed for future batches of SIM cards.
In the mean time the best way to check if your SIM is standard or industrial grade is to use the following Hologram REST API end point:
and look for
INDUSTRIAL under the
Your SIM has to be active to check the status. If you need to check this for a card prior to activation please contact us at firstname.lastname@example.org