ISO 11117:2008 has been published, but I don't have access to it without
buying it first. The abstract of it that I've seen states that the ISO
standard does NOT have all the info needed to certify the valve cap for
lifting.
If anyone has access to this ISO standard, perhaps you could find some
statement there as to why it's a bad idea to lift a cylinder by the
valve protection cap.
I'm also gonna ask our riggers in the ****pyard about it- perhaps they
have some written evidence to share....
--
Tin Lizzie
"Elephant: A mouse built to government specifications."-Lazarus Long