Superseded90% confidenceCautionTime unknown
磁力片单颗磁铁的磁通量若被吞入两颗以上会在肠道相互吸引造成穿孔，选购时确认磁铁为封闭焊接（超声波熔接）而非胶粘，且适龄严格3岁以上
1
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90%
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Long-term
Relevance
-
First Seen
This knowledge claim has been superseded by newer content
3岁以下必须确认无小零件（单件直径>3.17cm，即通过小零件测试筒判定），磁力玩具的磁通量应符合欧盟EN71/美国ASTM标准，吞入多颗强磁会在肠道相吸导致穿孔Sources
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