Improvement of the estimation of thermal protective properties for packages of fire-resistant materials

In work on the basis of the experimental researches it is shown, that the existing form of an estimation of thermal protective properties of fire-resistant materials and their packages is not exact. For elimination of the given lack the new methodological approach to an estimation of thermal protective properties of fire-resistant materials and their packages is offered. Its practical application allows not only to make the comparative analysis of thermal protective properties, but also to make an estimation of time of safe operation of package of fire-resistant materials at any level of thermal influence.