hlqmike 发表于 2015-7-13 08:53:08

ASTM F1862 / F1862M - 13

本帖最后由 hlqmike 于 2015-7-13 08:54 编辑

ASTM F1862 / F1862M - 13  Standard Test Method for Resistance of Medical Face Masks to Penetration by Synthetic Blood (Horizontal Projection of Fixed Volume at a Known Velocity)

yangwm 发表于 2015-7-13 08:53:09

http://bbs.infoeach.com/forum.php?mod=viewthread&tid=90069&extra=

hlqmike 发表于 2015-7-15 15:24:26

求助啊:):Q:'(...............................

hlqmike 发表于 2015-7-20 08:14:36

求助啊....................................

ygs67 发表于 2015-8-15 15:41:04

多谢分享！                              
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