ISO 10497 & API 607 (Valves Fire Test)

[NGiLuzzu]

About fire testing of valves (see also Thread408-131095): is it true that ISO 10497 (2nd edition, 2004-08-15)* has been adopted by API as the 5th edition of API 607?
Is it therefore the same to have the first or the second one?
Any important differences in respect to the relevant previous editions of both standards?

Thanks to all, 'NGL

* See:

http://www.iso.org/iso/en/Catalogue...ail?CSNUMBER=33203&ICS1=23&ICS2=60&ICS3=1#top