ISO7842: ISO7842 Insulation Specifications

Part Number: ISO7842

Dear, All

It is a question about ISO7842 Insulation Specifications.
Please tell me the differences in the following specifications.
· Viorm "Maximum repetitive peak isolation voltage"
· Viowm "Maximum isolation working voltage"
I think that the prescribed values are equivalent, but how is the measurement method different?

Thanks, Masami M.