guys, can you help me regarding EER? there're several things i didn't understand yet:

- escape route standard: where can i find this? not things like width or height, but what kind of thing should or should not be an escape route? if it's a hatch cover on the wellhead platform (normally closed), can you still walk on that and regard it as primary escape route during normal operation? if it's a ditch covered with some metal cover, can you still walk on that thing? of course, it's a common sense to use a free of obstacle route, but if it's not available and the only way is that you go through such obstacles? is there any standard stated anything regarding condition of escape route?
- escape to sea: what is the maximum height person allowed to jump directly to sea with lifebuoy/liferaft? what other means can be used? which one is more preferable? jumping directly to sea or using rope ladder? is there any standard regarding that?

much appreciation for your answer.