After careful research on the net and information received from "friends" experts have found some documents in which several European Institutes bring into serious doubt the thermal performance claimed by some manufacturers for their insulating heat reflective ... these institutions have shown that the methods of measurement of thermal conductivity according to UNI, these materials have a "real" value of conductivity equal to that of an ordinary polystyrene ... the benefits guaranteed by the reflectance of the material is only a de minimis as 30%! Surely these materials do not arrive to the values \u200b\u200breported by some drug manufacturers in their technical notes ... in Germany at this point, it is coming off a lawsuit that prohibited the company that produced these materials to advertise its products with the values \u200b\u200blisted in its brochure techniques ... because it says the sin but not the sinner, mind you using these materials ... Demand always a statement of compliance to EC would like to use the materials, which is declared a value of conductivity measured by methods in which normative and that the name of a person in flesh and blood who will take responsibility for that certificate ... Beware of any certificate from institutions that might test the products according to ad hoc test methods invented by those who then must sell the product on ...
0 comments:
Post a Comment