1. "Flame retardant" is not "not burnable" There is a n […]
1. "Flame retardant" is not "not burnable"
There is a need to use a lighter to burn the PVC floor to see if it can be burned. If it is burned, it is not fireproof, and if it is not burned, it is flame retardant. In fact, the country requires that the fire rating of PVC flooring reach the Bf1-t0 level. According to the national standard, non-combustible materials are classified as fire-resistant A-level, such as stone, tile, etc. The technical content of the Bf1-t0 flame retardant standard is a cotton ball with a diameter of 10 mm, dipped in alcohol, and placed on the PVC floor to burn naturally. After the cotton ball is burned out, measure the diameter of the burnt PVC floor trace, if less than 50mm, it is the Bf1-t0 flame retardant standard, instead of looking at "not burning when burning".
2. "Abrasion resistance" is not "not scratched with sharp tools"
When asked about the service life and wear resistance of the PVC floor, take out a knife or key and other sharp tools and scratch the surface of the PVC floor. If there is a scratch, it is considered not abrasion resistant. In fact, the country does not simply use a sharp tool to scratch the surface of the PVC floor abrasion resistance test. It uses a flat-bottomed circular sanding disk to polish the test floor under the pressure of 1Kg. After the number of rotations, the surface of the floor is abrasion resistant. The layer is worn out to expose the number of revolutions of the base layer. The number of revolutions at this node is an indicator to measure the abrasion resistance of the PVC floor. For example, the national minimum standard for laminate flooring is 1500 revolutions. Therefore, the abrasion resistance of PVC floor is specifically determined by the national testing agency.
3. "Smell the smell with your nose" is not "not environmentally friendly"
The PVC material itself does not contain formaldehyde, and PVC flooring is not allowed to use formaldehyde during the production process. Qualified PVC flooring should be 100% formaldehyde-free, and may have the smell of fragrances and additives, which will not give people It does not make people feel uncomfortable.