Rigid cellular plastics - determination of volume percentage of open cells and closed cells 刚性泡沫塑料制品.开口和封闭气室容积百分数的测定
2.
Rigid cellular plastics - determination of the volume percentage of open cells and of closed cells iso 4590 : 2002 ; german version en iso 4590 : 2003 硬质泡沫塑料.开孔和闭孔容积百分数测定