How to identify toxic plastic bags?

by:Kolysen     2020-08-04
Food plastic bags are often used in people's life, but also must be careful when use, some plastic bags are toxic, is not can be used to direct the food. One, with the eye observation non-toxic plastic bags with a white, transparent or slightly transparent, uniform texture; Toxic plastic bags for the color or is white, but the transparency is poor, the turbidity, tensile plastic surface uneven, with small particles. Second, listening with ears with her hands and shaking plastic bags, a ringing sound show is non-toxic plastic bags; And sound small, stuffy is poisonous plastic bags. Third, hand over hand touch surface of plastic packaging bags, very smooth and is non-toxic; Sticky, hair acerbity, waxy feeling is toxic. Four, nose to smell is tasteless non-toxic plastic bags; Have to stimulate abnormal smell or taste is toxic. Five, the submerged test method put plastic bags in the water, with the hand to press it to the bottom, just a moment, surface is non-toxic plastic bags, sink in the bottom is toxic plastic bags. Six non-toxic plastic bags of flammable, burning method, yellow flame tip, local in cyan, burning like a candle tears dripping, the smell of paraffin; Toxic plastic bag won't burn, away from the fire that is quenched, flame cutting edge or yellow, black, green, at the bottom of the softening can wire drawing, still can smell a pungent smell.
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