How long is the shelf life of plastic bottles?
EPE Quality Supervision Bureau of Shanxi Province Quality Supervision Bureau staff said, at present our country has no unified relevant standards, only industry standards. Some bottles of foreign production, although the label for a period of 10 years, but after repeated use, especially high temperature after heating, will release toxic substances bisphenol A, so as not to use heating, not straight in the sun. At present, our country adopts triangle symbol as plastic recycling mark. It can remind consumers to use it correctly from material. EPE staff said that at the bottom of the plastic bottle, there is a triangle with 1 - 7 numbers inside it. Each number represents a different material, indicating what kind of resin the product is made of. Such as for the manufacture of bottles, space cups and other ingredients containing PC plastic products, more marked as "pearl cotton 7EPE", "mineral water bottles", "carbonated drinks bottles" and more marked as "pearl cotton 1EPE".
Pearl cotton plastic products are made of different resin materials, in different temperatures, humidity and other conditions, will release toxic substances.
Plastic logo pearl cotton shelf-life EPE in the package, the state has also not clearly defined; the use of plastic products is the most critical temperature conditions, in general, as long as the use of temperature environment during the product labeling, the product does not release toxic substances; plastic product service life is generally 3 to 5 years expired may occur after aging, brittle phenomenon, affecting the performance of the product, but not necessarily be toxic to people.
