fasten 发表于 2012-7-24 11:34

关于标准细微的地方——shall, should, may

In CSA standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.

以上文字摘录自：CSA C22.2 No.250.13-12，如图:


欢迎探讨标准细微之处！

kelvinwen 发表于 2012-7-24 11:49

个人理解：
Shall 必须-----------应
Should应该---------宜
May可以------------可

Andy.Yang 发表于 2012-7-24 14:45

sometimes, it's not so specific, to fulfil and guarantee the safety requirements is the first priority...

Andy.Yang 发表于 2012-7-24 14:47

And in order to get it, we may improve "may" and "shall" to "should", even to "must" and/or "at least/most"...

svirus 发表于 2012-7-24 15:05

哥哥在家 发表于 2012-7-26 09:15

很不错的分享！

kalkal 发表于 2012-7-26 13:40

這個只是csa的定義麼? 那iec呢?

sam_qi 发表于 2012-8-1 10:32

对研究标准有争议的时候非常有用，感谢楼主热心提供，谢谢！

619711 发表于 2012-8-1 11:04

学习了，感谢楼主的分享

绾青丝 发表于 2012-8-1 11:53

刚刚也看到类似的资料.
shall 应 指满足本规范必须遵从的强制性要求
should 应该 指在多个可能性当中,认为特别合适,但不排斥其它的可能性.或是优选一套措施,但不是要求.或是
在否定证据当中不赞成某个措施但也不禁止
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