a1s2d3f4 发表于 2018-11-20 14:46:08

求ASTM F1862-17 Standard Test Method for Resistance of Medical Face Masks to Pe

求ASTM F1862-17 Standard Test Method for Resistance of Medical Face Masks to Penetration by Synthetic Blood (Horizontal Projection of Fixed Volume at a Known Velocity)




beiousheshou 发表于 2018-11-20 14:46:09

http://bbs.infoeach.com/forum.php?mod=viewthread&tid=203569&extra=

蚩余 发表于 2018-11-21 18:50:36

http://bbs.infoeach.com/forum.php?mod=viewthread&tid=203637&extra=
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