QUINOLINE INSOLUBLE IN TAR AND PITCH BY PRESSURE FILTRATION: ASTM D4746
TEST SUMMARY
The sample is digested in hot quinoline and filtered through a heated pressure filter. The insoluble material is washed with hot, fresh quinoline and with cold acetone, dried and weighed.
TEST PRECISION
Repeatability: 0.2 %
Reproducibility: 0.3 %
