ASTM D612 Standard Test Method for Carbonizable Substances in Paraffin Wax
8. Interpretation of Results
8.1 Paraffin wax shall be reported as passing the test when the acid layer is not darker than the reference standard colorimetric solution or, if completely emulsified, when the emulsion is not darker than a similar emulsion produced by vigorously shaking the reference standard colorimetric solution with white mineral oil in equal proportions.
8.2 If the acid layer is darker than the reference standard colorimetric solution, or if the emulsified paraffin wax and acid are darker than a similar emulsion of the reference standard colorimetric solution and white mineral oil in equal proportions, the paraffin wax shall be reported as not passing the test.
9. Precision and Bias
9.1 No statement is made about either the precision or the bias of this test method for measuring carbonizable substances in white refined waxes since the result only states whether there is conformance to the criteria for success specified in the procedure.
10. Keywords
10.1 carbonizable substances; petroleum wax; wax
