ASTM D1078 Test Method for Distillation Range of Volatile Organic Liquids
4. Summary of Test Method
4.1 A 100-mL specimen is distilled under conditions equivalent to a simple batch differential distillation. The temperature of the mercury in the thermometer is equilibrated with that of the refluxing liquid before the distillate is taken over. Boiling temperatures observed on a partial immersion thermometer are corrected to standard atmospheric pressure to give true boiling temperatures.
5. Significance and Use
5.1 This test method provides a method of measurement of distillation range of volatile organic liquids. The relative volatility of organic liquids can be used with other tests for identification and measurement of quality. Therefore, this test method provides a test procedure for assessing compliance with a specification.
5.2 This test method also provides an empirical value of residue, solvent recovery capacity, and loss (or non-recovery) on heating. Organic liquids are used as solvents in many chemical processes. As the relative volatility, residual matter and recovery capability affect the efficiency of these processes, this test method is useful in manufacturing control.
