其实回答这个问题还是要回到“软质包装材料”与“硬质包装材料”的分类上来。上述以肉眼观察水滴的“湿包”定义来源于“软质包装材料”,“硬质包装材料”的定义与之不同。怎样判断硬质容器的湿包?我们查EN 868.8-1999“Packaging materials and systems for medical devices which are to be sterilized – Part 8 : Re-usable sterilization containers for steam sterilizers conforming to EN285 – Requirements and test methods”标准,采用的是称重的方法。