Richard,
Engineers only read that part of the para that appears to be immediately applicable out of the one page they copied out of the standard. Standards developers don't understand the needs of design and test engineers, who do not want to read books, they certainly don't want to try and solve or debate standards puzzles, but want to design or test. Hence, any requirement that can not be contained within one short paragraph, written in plain and preferably vulgar english, no footnotes please, no references please, is not applicable to whatever they are doing. Ciao, Vic
