The influence of density of test specimens on the quality assessment of retarding effects of fire retardants

Test methods evaluating wood flame retardant efficiency are comprised of a parameter which is often considered to be an evaluation criterion and its calculation includes the weight of the test specimen or takes into account the change of its weight during the test. In this case, the overall result may be affected not only by the weight of the test specimens, but also by their density. Our aim is to observe the influence of density while evaluating the efficiency of wood flame retardants.