This standard is applicable to the classification, naming and unified model of amino molding compound in powdery, granular or fibrous form. This standard does not provide specific uses and properties of materials.
GB/T 3403-1982 history
2008GB/T 3403.1-2008 Plastics.Urea-formaldehyde and urea/melamine-formaldehyde powder moulding compounds(UF-and UF/MF-PMCs).Part1:Designation system and basis for specifications
1982GB/T 3403-1982 The designation of aminoplastic moulding compounds