WARNING—Personnel using this standard should have practical experience in formal laboratory work. This standard does not address all possible safety issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This standard specifies the method for determining the pour point of crude oil, including the highest (upper) pour point and the lowest (lower) pour point. This standard applies to crude oil with a pour point not lower than -36°C and a water content not greater than 0.5%.