ODOR OF PETROLEUM WAX: ASTM D1833
EXPLANATION
Odor intensity of wax is an important property in some uses of wax such as food packaging. It is often included in the specifications of petroleum wax. This method gives a basis for agreement between laboratories on the odor intensity of wax using a numerical scale rather than descriptive terms. The rating results, however, can be influenced by odor type.
TEST SUMMARY
About 10 g of thin shavings from a petroleum wax sample are placed on odor-free paper or glassine. They are then evaluated by each panel member and assigned a number corresponding to a number of the odor scale description best fitting the intensity of the odor. Alternatively, the wax shavings are placed in bottles, and each panel member makes the evaluation between 15 and 60 min after the specimens are prepared. A panel should have at least five people. The average of the panel rating is reported as the odor rating of the sample.
TEST PRECISION
This test method has no bias. However, precision data have not been developed.
