This standard specifies the method for determining the volume percentage of open cells and closed cells of rigid foamed plastics. This standard applies to the determination of the volume percentage of open cells and closed cells of rigid foamed plastics.
GB/T 10799-1989 history
2008GB/T 10799-2008 Rigid cellular plastics.Determination of the volume percentage of open cells and of closed cells
1989GB/T 10799-1989 Cellular plastics--Determination of volume percentage of open and closed cells of rigid materials