How to identify whether there is a bag of toxic?

Release date:2015-01-05 00:00 Source:http://www.ycleading.com Views:

　　A bag is made of two kinds of plastic film: one is made of polyethylene and polypropylene and dense ammonia as raw material; another kind is made of polyvinyl chloride. The former is nontoxic; the latter is poisonous, not packaged food.

　　A bag of plastic bags has identified the following simple method of non-toxic available:

　　1 hand touch detection method of touch plastic bags by hand, has a sense of lubrication are non-toxic or toxic.

　　2 fire detection method can make the plastic bags to cut an edge with fire, toxic non flammable non-toxic fire burns.

　　The 3 water detection method of the plastic bag into the water, non-toxic plastic bag into the water, can rise to the surface; and the plastic bags are not poisonous to float.

　　4 shake detection method by holding the plastic bag end, hard to mix, issued by the crisp sound of those toxic non-toxic; otherwise.