Chapter 9 – Weights & Measures
Firmware Version 3/4.31.37
This table provides CTL factors for correcting volumes of lube oils at observed temperatures
to the volume at 60ï‚° F, using the method outlined in Chapter 11.1.6.1 of the 2004 standard.
Use this table if the following conditions exist.
ï‚· The liquid is a lube oil
ï‚· Relative Density at 60 ï‚°F is known
ï‚· Reference Temperature is 60ï‚° F
This table provides CTL factors for correcting volumes of light hydrocarbons at observed
temperatures to the volume at 60ï‚° F. Use this table if the following conditions exist.
ï‚· The liquid is a NGL or LPG (propane)
ï‚· Relative Density at 60ï‚° F is known
ï‚· Reference Temperature is 60ï‚° F
After selecting this table, enter the Relative Density of the liquid at 60ï‚° F. The valid range of
Relative Density is from 0.3500-0.6880. Test temperatures can be entered on this screen
that will calculate a CTL based on the test temperature and the Relative Density. The test
temperature and Calculated CTL are for informational purposes and will not be used in
calculations during operations.
This table provides the CTL factors of a petroleum product at observed temperatures and
Relative Density. This table allows specifying the commodity being measured, the
reference temperature, and units of measure for density, pressure, and temperature
This table provides the value of relative density at 60ï‚° F of crude oil at observed
temperature and density. Use this table if the following conditions exist:
ï‚· The liquid is crude oil.
ï‚· Current Temperature and Density is available.
ï‚· Relative Density at 60ï‚° F is unknown
Reference Temperature is 60ï‚° F
This table provides the value of relative density at 60ï‚° F of gasolines at observed
temperature and density. Use this table if the following conditions exist:
ï‚· The liquid is a refined product.
ï‚· Current Temperature and Density is available.
ï‚· Relative Density at 60ï‚° F is unknown
Reference Temperature is 60ï‚° F
This table provides the value of relative density at 60ï‚° F of lubricating oils at observed
temperature and density. Use this table if the following conditions exist:
ï‚· The liquid is a lubricating oil.
ï‚· Current Temperature and Density is available.
ï‚· Relative Density at 60ï‚° F is unknown
Reference Temperature is 60ï‚° F