Лако-красочные материалы — производство

The content of matter volatile in a pigment is determined by drying a sample in an oven at 105 ± 2 °C. This normally gives a measure of the moisture content. For standards, see Table 1.1 (“Matter volatile”).

Loss on ignition is determined by various means, depending on the pigment. The principle is the same in all the methods: a weighed sample is heated to a predeter­mined temperature, cooled in a desiccator, and reweighed. Special standard proce­dures are specified for iron oxide pigments and carbon black. For standards, see Table 1.1 (“Iron oxide pigments: Specifications” and “Carbon black pigments: Spec­ifications”).

1.2.2.3