ASTM D1250-04
(Guide)Standard Guide for Use of the Petroleum Measurement Tables
Standard Guide for Use of the Petroleum Measurement Tables
SCOPE
1.1 The API MPMS Chapter 11.1-2004/Adjunct to IP 200/04/Adjunct to ASTM D 1250-04 (ADJD1250CD) for temperature and pressure volume correction factors for generalized crude oils, refined products, and lubricating oils, provides the algorithm and implementation procedure for the correction of temperature and pressure effects on density and volume of liquid hydrocarbons. Natural gas liquids (NGLs) and liquefied petroleum gases (LPGs) are excluded from consideration. The combination of density and volume correction factors for both temperature and pressure is collectively referred to in the standard/adjunct(s) as a Volume Correction Factor (VCF). The temperature portion of this correction is termed the Correction for the effect of Temperature on Liquid (CTL). The pressure portion is termed the Correction for the effect of Pressure on Liquid (CPL).
1.2 Including the pressure correction in API MPMS Chapter 11.1-2004/Adjunct to IP 200/04/Adjunct to ASTM D 1250-04 (ADJD1250CD) represents an important change from the "temperature only" correction factors given in the 1980 Petroleum Measurement Tables. However, if the pressure is one atmosphere (the standard pressure) then there is no pressure correction and the standard/adjunct(s) will give VCF values consistent with the 1980 Petroleum Measurement Tables.
1.3 API MPMS Chapter 11.1-2004/Adjunct to IP 200/04/Adjunct to ASTM D 1250-04 (ADJD1250CD) covers general procedures for the conversion of input data to a form that is consistent with the computation procedures used to generate VCF values. Two sets of procedures are included for computing volume correction factor: one set for data expressed in customary units (temperature in F, pressure in psig); the other for the metric system of units (temperature in C, pressure in kPa or bar). In contrast to the 1980 Petroleum Measurement Tables, the metric procedures require the procedure for customary units be used first to compute density at 60F. This value is then further corrected to give the metric output. The metric procedures now incorporate the base temperature of 20C in addition to 15C.
1.4 The procedures recognize three distinct commodity groups: crude oil, refined products, and lubricating oils. A procedure is also provided for determining volume correction for special applications where the generalized commodity groups' parameters may not adequately represent the thermal expansion properties of the liquid and a precise thermal expansion coefficient has been determined by experiment.
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An American National Standard
Designation:D1250–04
Designation: 200/04
Standard Guide for
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Use of the Petroleum Measurement Tables
This standard is issued under the fixed designation D 1250; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
INTRODUCTION
This guide discusses the use of temperature and pressure volume correction factors for generalized
crude oils, refined products, and lubricating oils, developed jointly by ASTM International, the
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American Petroleum Institute (API) and the Energy Institute.
The volume correction factors, in their basic form, are the output of a set of equations derived from,
and based on, empirical data relating to the volumetric change of hydrocarbons over a range of
temperatures and pressures. Traditionally, the factors have been listed in tabular format called the
Petroleum Measurement Tables (hence the appearance of this term in the title), and published as an
API Standard/Adjunct to IP 200/Adjunct to ASTM D 1250. However, since the 1980 revision the
actual standard has been a set of implementation procedures, not printed tables nor simply a set of
equations.
This revised standard, API MPMS Chapter 11.1–2004/Adjunct to IP 200/04/Adjunct to ASTM
D 1250–04 (ADJD1250CD), establishes procedures for crude oils, liquid refined products, and
lubricating oils, by which volume measurements taken at any temperature and pressure (within the
range of the standard) can be corrected to an equivalent volume at base/standard conditions, normally
15°C, 60°F or 20°C, by use of a volume correction factor (VCF). The standard, API MPMS Chapter
11.1–2004/Adjunct to IP 200/04/Adjunct to ASTM D 1250–04 (ADJD1250CD), also provides
methods for making conversions to alternate conditions from base conditions and to alternate base
temperatures. Densities can be corrected by using the inverse of the VCF.
See Section 5 for a list of significant changes from Guide D 1250–80 (provided in its entirety in
Annex A1).
USAGE GUIDELINES
The revised standard, API MPMS Chapter 11.1–2004/Adjunct to IP 200/04/Adjunct to ASTM
D 1250–04 (ADJD1250CD), is effective upon the date of publication and supersedes the previous
edition of the standard/adjunct(s). However, due to the nature of the changes in the revised
standard/adjunct(s), it is recognized that guidance concerning an implementation period may be
needed in order to avoid disruptions within the industry and ensure proper application. As a result, it
is recommended that the revised standard/adjunct(s) be used on all new applications no later than two
years after the publication date (May 2004). An application for this purpose is defined as the point
where the calculation is applied.
Once the revised standard/adjunct(s) is implemented in a particular application, the previous
standard will no longer be used in that application.
If an existing application complies with the previous standard/adjunct(s) (as referenced in Annex
A1), then it shall be considered in compliance with the revised standard/adjunct(s).
However, the use of the API MPMS Chapter 11.1–2004/Adjunct to IP 200/04/Adjunct to ASTM
D 1250–04 (ADJD1250CD) remains voluntary, and the decision on when to utilize a standard is an
issue that is subject to the negotiations between the parties involved in the transaction.
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D1250–04
1. Scope rection Factors for Generalized Crude Oils, Refined Prod-
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ucts, and Lubricating Oils
1.1 The API MPMS Chapter 11.1–2004/Adjunct to IP 200/
Chapter 11.2.1 Compressibility Factors for Hydrocarbons:
04/AdjuncttoASTMD 1250–04(ADJD1250CD)fortempera-
0–90° API Gravity Range
ture and pressure volume correction factors for generalized
Chapter 11.2.1M Compressibility Factors for Hydrocar-
crude oils, refined products, and lubricating oils, provides the
bons: 638–1074 Kilograms per Cubic Meter Range
algorithm and implementation procedure for the correction of
2.2 ISO Standards:
temperature and pressure effects on density and volume of
ISO 91–1:1992 Petroleum measurement tables—Part 1:
liquid hydrocarbons. Natural gas liquids (NGLs) and liquefied
Tables based on reference temperatures of 15°C and 60°F
petroleum gases (LPGs) are excluded from consideration. The
ISO 91–2:1991 Petroleum measurement tables—Part 2:
combination of density and volume correction factors for both
Tables based on a reference temperature of 20°C
temper
...
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