This standard specifies a method for determining the B-stage transformation time of phenolic resin on a heating plate under certain temperatures and conditions. This standard describes a test method using two different test panels. Method A: Spherical concave test plate method. Method B is the non-concave flat panel method.
HG/T 2757-1996 history
1996HG/T 2757-1996 Determination of Reactivity of Phenolic Resins on B-Stage Transition Test Plates