@Huntingdog - You can post all the Federal standards you want, they are meaningless because (AGAIN) we will never know what any given OEM actual test specs are.
What you posted are minimum standards, that I highly doubt many...if any...OEM's do not exceed.
Take Carlisle and Goodyear for example, both allow speeds well over 65mph on some of their ST branded tires. You think they never tested their tires at such speeds? They never exceeded the Federal test spec? Yaaa riiiight.
And all the subjective testing in the world will not prevent blow outs. They will continue to happen on EVERY make and model tire in the world. That's a fact!