Just to help update with more info, I also took a mixture of both Instax mini and wide to Kenya passing xray machines more than 6 times using those old xray machines that doesn't have those "film safe" word on it and all the instax were fine.
Originally Posted by Nuff
Though I haven't tried with the FP3000-b packfilm yet. Has anyone tried it before? I've actually sent Delta 3200 through Xray multiple times before without any problems so I figure Packfilm of ISO 3000 shouldn't have trouble as well.