This standard specifies the method for determining the impact properties of plastics with small specimens using a Charpy impact testing machine. This standard applies to rigid thermoplastics and thermosetting plastics. This standard does not normally apply to reinforced plastics.
GB/T 16420-1996 history
1996GB/T 16420-1996 Plastics--Determination of impact properties by use of small specimens
GB/T 16420-1996 Plastics--Determination of impact properties by use of small specimens was changed to HG/T 3841-2006 Plastics. Determination of impact properties by use of small specimens.