BPA and Phthalates in Toys: Part 1 - Sample Preparation
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12 سال پیش
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This video, part 1 of
This video, part 1 of 2, examines the sample preparation of small, inexpensive, imported children's toys using new cryogenic grinding methods. This video will also discuss the process used to identify the types of plastic in each sample.
12 سال پیش
در تاریخ 1391/02/17 منتشر شده
است.
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