This standard specifies the method for determining the density of liquid resins using a pycnometer. This standard applies to the determination of the density of low-viscosity and medium-viscosity liquid resins; it can also be used for high-viscosity liquid resins, but the operation is more difficult.
GB/T 15223-1994 history
2008GB/T 15223-2008 Plastics.Liquid resins.Determination of density by the pyknometer method
1994GB/T 15223-1994 Plastics--Liquid resins--Determination of density by the pyknometer method