SN/T 0541.2-1996 Inspecting method for import and export standard rubber.Determination of initial plasticity (P&sub0;) and plasticity retention index (PRI) (English Version)
2011SN/T 0541.2-2011 Inspection of import and export standard rubber. Part 2:Determination of plasticity and plasticity retention index
1996SN/T 0541.2-1996 Inspecting method for import and export standard rubber.Determination of initial plasticity (P&sub0;) and plasticity retention index (PRI)