Product Overview The SL-OA15M is a manual control cloud point and pour point tester engineered for the precise determination of the pour point and freezing point of petroleum products. Designed and manufactured in accordance with GB/T3535, GB/T6986, and GB/T510, this instrument delivers reliable low-temperature performance testing for laboratories and quality control environments. Compliant Test Standards ASTM D2500 ASTM D5950 GB/T3535 GB/T6986 GB/T510 Key Features Multifunct