Nielsen T, Damant A P, Castle L
Ministry of Agriculture, Fisheries and Food, CSL Food Science Laboratory, Colney, Norwich, UK.
Food Addit Contam. 1997 Aug-Oct;14(6-7):685-93. doi: 10.1080/02652039709374580.
Quick tests are proposed in the literature as alternatives to the large scale contamination and washing studies performed to date to assess the acceptability of plastic beverage bottles for refilling. These tests use small plastic specimens ('strips') in place of bottles and use mixtures of surrogate contaminants to model the myriad of chemicals that could in principle contaminate returned bottles because of consumer mis-use. The work reported here has measured the sorption and wash performance using the quick test protocol with PET (polyethyleneterephthalate) strips and laboratory washing and compared the results with tests using actual bottles and a commercial washing process. The comparison indicates that the quick test satisfactorily simulated contamination and commercial washing of intact bottles. The results also show that repeated washing of PET bottles does not cause higher sorption of contaminants.
文献中提出了快速测试，作为迄今为止为评估塑料饮料瓶再充装的可接受性而进行的大规模污染和清洗研究的替代方法。这些测试使用小塑料样本（“条带”）代替瓶子，并使用替代污染物混合物来模拟因消费者误用而可能污染回收瓶的各种化学物质。本文报道的工作使用PET（聚对苯二甲酸乙二酯）条带和实验室清洗，按照快速测试方案测量了吸附和清洗性能，并将结果与使用实际瓶子和商业清洗过程的测试进行了比较。比较表明，快速测试令人满意地模拟了完整瓶子的污染和商业清洗。结果还表明，PET瓶的反复清洗不会导致污染物的更高吸附。
