兑水 发表于 2009-12-8 10:20:36

ASTM F 2299-2003 用乳胶球测定用于被微粒渗透医疗面罩的材...

F2299-03 Standard Test Method for Determining the Initial Efficiency of Materials Used in Medical Face Masks to Penetration by Particulates Using Latex Spheres
页: [1]
查看完整版本: ASTM F 2299-2003 用乳胶球测定用于被微粒渗透医疗面罩的材...