CTPL, API MPMS Chapter 11.1

Manual of Petroleum Measurement Standards

Chapter 11 -- Physical Properties Data

Section 1 - Temperature and Pressure Volume Correction Factors for Generalized Crude Oils, Refined Products, and Lubricating Oils.
Adjunct to: ASTM D 1250-04 and IP 200/04
MAY 2004

Base: API 11.1.6.1

Density is known at base condition (60°F & 0 psig), and volume at observed condition.

Observed: API 11.1.6.2

Density is known at observed condition (any t & P), and volume at observed condition.

Alternate: API 11.1.6.3

Density is known at observed condition (any t & P), and correct density & volume to an alternate condition (any other t & P).