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The development&...
Detection plastic bags non-toxic method
Plastic bags brought great convenience to the people's life, be the essential items of shopping and going out to play , but it not to be neglected that plastic bags have caused "white pollution" to the environment and caused the great pollution. In order to alleviate the pressure on the environment, the country has issued "plastic limit" and not inhibit people to reduce the use of plastic bags. The characteristics of convenient plastic bags we can not deny, but in the using process we should know some basic test methods.
Detection method of plastic bags non-toxic basically has the following kinds:
A, sensory method: nontoxic plastic bags has milk-white, translucent, or colorless transparent, flexible, feel lubrication, the surface there seems to be a wax, and poisonous plastic bags color cloudy or pale yellow, feel sticky.
Second, water test: put plastic bags on the water, and press into the bottom, a small proportion of the toxic plastic bags, can rise to the surface of the water, and toxic significant than plastic bags, sinking.
Three, the jitter assay: hand clutching plastic bags with one end hard shake, a ringing sound no poison, sound boring the astringent toxic.
Four, fire assay: no poison of polyethylene plastic bags easily burning, the flame is blue, like a candle burning distill, paraffin wax flavour, smoke less, and poisonous PVC plastic bags don't burn, the fire is out, and the flame yellow, bottom is green, softening can wire drawing, and stimulating odour of hydrochloric acid.
Plastic bags manufacturer customization, shenzhen plastic bags production suppliers, guangdong plastic bags production company preferred shenzhen SangYe industrial Co., LTD