API MPMS Chapter 7.1

This chapter describes the methods, equipment, and procedures for manually determining the temperature of liquid petroleum and petroleum products with liquid-in-glass thermometers. This chapter discusses temperature measurement requirements in general for custody transfer, inventory control, and marine measurements. The actual method and equipment selected for temperature determination are left to the agreement of the parties involved.The manual method covers:— non-pressurized tanks and non-pressurized marine vessels;— gas-blanketed tanks and gas-blanketed marine vessels.