Méthodes générales d'essai des pigments et matières de charge — Partie 21: Comparaison de la stabilité à la chaleur des pigments en utilisant un liant au four

The method is intended for comparing the heat stability by specifying the temperatures of heating and the time of heating; it may also be used for determining the heat resistance of a pigment. The comparison of heat stability is carried out against that of an agreed sample.