Continue distillation until no more water is visible in any part of the apparatus except the bottom of the trap.
Industrial grade xylene or toluene is used for most petroleum and bituminous samples. Astm D95 Pdf
Continue the distillation process until no more water is visible in any part of the apparatus except at the bottom of the trap. Typically, this process takes between 30 to 60 minutes. 5. Final Measurement Continue distillation until no more water is visible
: Excessive water can cause "mayonnaise effects" (emulsions) or damage equipment during processing. Astm D95 Pdf
A straight-tube glass condenser to cool the vapours.