This standard specifies the terms and definitions, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements for fiber-grade polybutylene terephthalate (PBT) chips. This standard applies to the factory inspection, user acceptance and arbitration inspection of fiber-grade polybutylene terephthalate polyester chips produced with purified terephthalic acid and 1,4-butanediol as raw materials. Other PBT slices can be used as a reference.
FZ/T 51005-2011 Referenced Document
GB/T 14190 Testing methods of fiber grade polyester(PET)chip*, 2017-12-29 Update
GB/T 6678 General principles for sampling chemical products
GB/T 6679 General rules for sampling solid chemical products
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values