This document specifies a method for the determination of low
specific surface area of powders ELTs rubber by measuring the
amount of physically adsorbed krypton gas and applying the
theoretical multipoint Brunauer, Emmett and Teller (BET)
method.
This document defines a specific method for powders taking into
account that, in order to obtain an accurate value of specific
surface area, a representative sample of the material to be tested
is taken according to the principle that every particle of the
sample that represents the lot have an equal probability of being
included in the sample.