The automation of the smoke point test introduced by AD Systems SP 20 had drastically improved the precision of the test in comparison with the original manual method, and consequently became the referee method in ASTM D1322 and IP 598.  It uses a system that adjusts the size of the flame associated to a video camera that observes the flame. When the flame attains the shape described in the test method, the SP20 memorizes and reports the height of the flame.