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Time: 2017-02-17

food

PE

membrane

Plastic bags are often used in People's Daily life, but we must be careful when using, some plastic bags but toxic, can not be used to directly hold food. The following people hing

PE

Film packaging to teach you a few ways to identify it!

1

Inspect with your eyes

Non-toxic plastic bags were white, transparent or slightly transparent, uniform texture; Poisonous plastic bag is colour or although be white, but diaphaneity is poor, more turbid, plastic exterior stretches not even, have small grain.

2

, with the hand touch

The surface of the plastic bag is smooth and non-toxic. Sticky, astringent and waxy are poisonous.

3

Listen with your ears

Ears to use the hand vigorously vibrate plastic bags, issued a crisp sound that is non-toxic plastic bags; And the noise is small and muffled is toxic plastic bags.

4

Smell with your nose

Smell the non-toxic plastic packaging is odorless; An irritating smell or taste that is abnormal is poisonous.

5

, submerged test method

Let's do a submerged experiment

PE

Film plastic bag is put in water, press its with the hand bottom, wait a moment, those who rise to the surface is avirulent plastic bag namely, those who sink in bottom is poisonous plastic bag namely.

6

, burning method

The incineration experiment is non-toxic

PE

Film plastic bags flammable, flame tip was yellow, local cyan, burning like candle tears drip, paraffin flavor; Toxic plastic bags are not easy to burn, the fire is out, the tip of the flame was yellow, green at the bottom, soft wire drawing.

What should all of you be able to identify by these six methods

PE

Are plastic bags toxic?