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今天 IEC60601-1, 无意中看到标准对这两个词解释如下:
8 D" K& Q( e4 Q1) “shall” means that compliance with a requirement or a test is mandatory for compliance5 D- X' \3 `) I4 Z
with this standard;* f7 G W6 t9 u! O1 A8 x, l
2) “should” means that compliance with a requirement or a test is recommended but is not7 L# R2 Q3 V# R8 j
mandatory for compliance with this standard;! E& b( w2 y3 N, M, F4 k$ e4 z- ~- N
− “may” is used to describe a permissible way to achieve compliance with a requirement or) _* G7 M1 Q. ? B, _4 D* h+ O; L
test' G9 K% R& j# o+ [) M
供参考! |
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