Five strokes to distinguish between plastic doors and windows

First, look at the product profile name. Poisonous plastic steel doors and windows are generally based on low-cost lead salt stabilizers. This raw material contains lead and is named "PVC Profile". Non-toxic plastic steel doors and windows use non-toxic, non-polluting, environmentally-friendly thiol organotin T-137 stabilizer, named "VPVC profiles".

Second, look at the packaging logo. Look at the product name, execution standard, factory name, factory address, quality grade, etc. marked on the product packaging or on the label. If the basic content is complete, whether the text or pattern is colored or biased. If the content of the packaging label is incomplete, the text or pattern is printed with ghosting or deviation, it is definitely a small profile enterprise, and it is best not to buy it.

Third, look at the quality inspection certificate. After selecting the plastic steel doors and windows, you must ask the dealer for the product quality inspection certificate. If the test item of the certificate or inspection report has a lead component, the product is certified to be a PVC profile.

Fourth, look at the color of the product. The color of the poisonous plastic steel doors and windows is white, although it is white, but the intuitive feeling is very "æ„£", that is, it is dark or white and blue, and the smoothness is very strong. After being used for a period of time, it is gradually grayed out due to the pollution of sulfur and sulfide in the atmosphere. black. The color of non-toxic plastic steel is pure, like ivory white. The smooth and clean feeling is crystal clear and soft. It has the feeling of penetrating into the inside. It will not be grayish black if it is polluted by sulfur and sulfide in the atmosphere.

Fifth, look at the use effect. Lead-type steel-plastic doors and windows form lead dust on the surface under the action of sunlight and heat for a long time, which may cause lead poisoning and lead pollution. After lead enters the human body, most of it is excreted in the feces and sweat, and most of it precipitates in the bone marrow and dissolves into the blood, which damages the bone marrow hematopoietic system, the brain nervous system, the urinary system and the reproductive organs. Lead can also block the body's blood synthesis, leading to anemia, headache, dizziness, fatigue, drowsiness, constipation and limb pain. The use of organotin-like plastic doors and windows does not cause these symptoms.