求助他达拉非欧洲药典里这段话是啥意思?

下面是他达拉非欧洲药典里的一段话：
Other detectable impurities(the following substances would,
if present at a sufficient level, be detected by one or other of
the tests in the monograph. They are limited by the general
acceptance criterion for other/unspecified impurities and/or
by the general monograph Substances for pharmaceutical use
(2034) . It is therefore not necessary to identify these impuritie
for demonstration of compliance. See also 5.10. Control of
impurities in substances for pharmaceutical use ): B, C, D, E,
F, G, H, I .
请问是不是说B到I这几个杂质不用研究吗？有牛人能告诉我具体啥意思吗？ 显示全部