C222 – API Calculation of Ctl (Product Groups)

Description

This calculates the correction factor to convert volumes between different temperature conditions.

References

Kelton calculation reference C222

This calculation is used by the following calculations:

F022/K209 – IP Paper 1 Density Referral

F023/K212 – API Density Referral

Manual of Petroleum Measurement Standards Chapter 11.1 – Volume correction factors Volume 10 – Background, Development and Program Documentation: API Standard 2540 First Edition (August 1980)

Options

Product Group

The constants to represent the properties of the various product groups are given in C022.

Precision

  • Rounding Select this option to follow the procedure for rounding and truncating as stated in the standard
  • Full Calculate using the full precision

Calculations

All calculations are performed in SI units unless otherwise stated

Ctlm

The temperature correction factor is calculated by

where:

ΔT = The difference between the temperature and the base temperature of 15 °C

and

where K0, K1 and K2 are taken from the product group constants

 

 

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