With certain mixtures having a high chlorofibre content there may be substantial shrinkage of the specimen during the drying procedure, as a result of which the dissolution of chlorofibre by the solvent is retarded.
Les échantillons de certains mélanges à haute teneur en polychlorure de vinyle se contractent fortement pendant l'opération de séchage, ce qui entrave l'élimination du polychlorure de vinyle par le solvant.