This standard specifies the method for determining the viscosity and intrinsic viscosity of dilute solutions of p-chlorophenol (containing 2% a-pinene) of polyoxymethylene resin. This standard applies to polyoxymethylene homopolymers and copolymers.
HG/T 3604-1999 history
1999HG/T 3604-1999 Determination of viscosity number and limiting viscosity number of polyoxymethylene in dilute solution