PBT(polybutylene terephthalate) XW321(Qualified) Instrinsic viscosity(dL/g): 0.980±0.020

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XW321(Qualified)
Instrinsic viscosity(dL/g): 0.980±0.020
Melting point(℃):223.0±3.0
COOH content(mol/t):25.0±6.0
Color value(b):4.0±3.0
Color value(L):≥85
Moisture(%):≤0.40
Ash content(mg/kg):≤300
Hundred-grain weight(g):M±0.30
Different shape chip(%):≤0.4
Different color chip(PCS/500g): ≤1.0