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Тема |
Re: Chlorine... [re: фeяя] |
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Автор |
snakeling () |
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Публикувано | 27.08.09 01:09 |
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В уикипедия намерих-3 и 7 са най-кофти пластмаси.Ако на дъното на бутилката има триъгълник с 3 или 7, не ползвай съдржанието и.
Identification in plastics
Some type 7 plastics may leach bisphenol A
Some type 3 plastics may leach bisphenol AThere are seven classes of plastics used in packaging applications. Type 7 is the catch-all "other" class, and some type 7 plastics, such as polycarbonate (sometimes identified with the letters "PC" near the recycling symbol) and epoxy resins, are made from bisphenol A monomer.[4] [12].
Type 3 (PVC) can also contain bisphenol A as antioxidant in plasticizers.[4]
Types 1 (PET), 2 (HDPE), 4 (LDPE), 5 (polypropylene), and 6 (polystyrene) do not use bisphenol A during polymerization or package forming.
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