标题: 求ASTM F1862-17 Standard Test Method for Resistance of Medical Face Masks to Pe [打印本页] 作者: a1s2d3f4 时间: 2018-11-20 14:46:08 标题: 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)