... months from the manufacturing date.No.IndexUnitTypeTesting MethodUF1PUF1G1Appearance PowderyGranular, with little powder After moulding, the surface should be flat, shinny and ... residue match the sample2Resistance to boiling water no mushy, permit little color fade and purseGB134543Gravityd2525,≤1.6GB10334Specific volumeml/g≤32 5Volatile ...