Materials:
1th umbrella (import brands, with a green coating, pink outer layer)
2nd (silver-lining, dark green outer layer)
3rd parachute (embroidered umbrellas, no special coating)
4th umbrella (Chameleon material)
5th (impact vinyl)
6th umbrella (black polyester colored glue)
7th parachute (silver plastic coated)
Experimental procedure:
In the laboratory with the help of professionals, 7 umbrella of different materials, in turn, put transmission in the UV detector on the UPF, UVA index test.
In accordance with the national standard of the anti-UV properties of textiles assessment provisions of the latest version, UPF (ultraviolet protection factor) >40 and UVA (ultraviolet a) transmittance when<5% can be referred to as UV products.
The results:
UPF (ultraviolet protection factor): in addition to the 3rd parachute (embroidered umbrellas, no special coating) test is 14.4, far below the national standard of 40, no protective effects, the remaining 6 quality parachute qualified.
Among them, the 5th parachute (hit vinyl) and 6th (Black colored plastic) test values have reached 500, highest degree of protection; 7th umbrella (silver plastic coating) to 492.44, protection factor ranked second; 1th umbrella (import brands, with a green coating, pink outer) numerical 195.29, protection factor came in sixth.
UVA (longer UV spot effect in Bosnia): Similarly, the 3rd parachute (embroidered umbrellas, no special coating) test is 20.16%, far higher than the national standard of 5%, there is no protection, the remaining 6 quality parachute qualified.
Black polyester colored gum material, 6th most amazing umbrella, test number is 0%, can almost be 100% blocks UVA; hit umbrella, vinyl material of the 5th has performed well at 0.01%, close to perfection. 1th value is 3.33%, sixth protective force.