The Montel tester has been designed for determination of Pour Point (PP) and Cloud Point (CP) with small specimen size /shorter test time while securing better test precision. PP measurement is made by utilizing a new method which yields no bias against the conventional test method's repeatability of 1°C, and reproducibility of 2°C This epoc-making accuracy has made possible PP determination at 1°C intervals. The CP/PP mode executes a CP determination and then a PP determination consecutively, which further improves the test throughput.
This tester is a three test Version. ASTM has approved the PP test method: ASTM D6749 on "Standard Test Method for Pour Point of Petroleum Products". The accuracy information is for typical samples. o Pour Point at 1 C Intervals for Higher Yield in Process: Conventional PP test methods yield rough PP numbers of multiples of 3°C. Higher resolution in PP determination has been long awaited for more accurate process control. With the patented Air Pressure method, PP can be now determined at 1°C intervals with high accuracy, since the disturbance of the formation of wax crystal structure throughout the test process is at a minimal level. When PP is measured at 1°C intervals, typical repeatability and reproducibility are 1°C and 2°C, respectively.
Easy Sample Handling:Since the required specimen volume is a mere 4.5 ml and the specimen cup is a test-tube type removable jar, the sample handling is extremely easy. Easy, Quick, and Precise PP/CP Determination: Just set up the specimen, set test parameters, and then press the START key to start a test. The specimen is cooled at the steepest possible rate without affecting the formation/growth of wax crystal, which has been known to be critical in PP/CP determination. For fuel oils, the specimen may be even pre-heated automatically and then cooled for CP/PP determination, which further improves test throughput.