ASTM D6045-12

Standard Test Method for Color of Petroleum Products by the Automatic Tristimulus Method

SIGNIFICANCE AND USE
5.1 Determination of the color of petroleum products is used mainly for manufacturing control purposes and is an important quality characteristic because color is readily observed by the user of the product. In some cases the color may serve as an indication of the degree of refinement of the material. When the color range of a particular product is known, a variation outside the established range may indicate possible contamination with another product. However, color is not always a reliable guide to product quality and should not be used indiscriminately in product specifications.
SCOPE
1.1 This test method covers the automatic determination of color of a wide variety of petroleum products such as undyed motor and aviation gasoline, aviation turbine fuels, naphthas, kerosine, pharmaceutical white oils, diesel fuel oils, heating oils, and lubricating oils by the automatic tristimulus method. This test method correlates to Test Method D156 and Test Method D1500 as calculated by the instrumentation. Note 1—With the appropriate sample handling, this test method would apply to petroleum waxes, but they were not used in the round robin, and the precision of this test method with regard to waxes is unknown.  
1.2 This test method reports results in terms of Test Method D156 or Test Method D1500.  
1.3 This test method has a one-to-one correlation for the entire range of Test Method D1500 ASTM Color and for the range from 0 to +30 for Test Method D156 Saybolt color.  
1.4 This test method does not apply to solid samples, petroleum products containing dye, and petroleum products having extreme fluorescence.  
1.5 This test method does not apply to cloudy samples. Such samples shall be filtered so they are clear before measuring.  
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Nov-2012
• ICS: 75.080 - Petroleum products in general
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.05 - Properties of Fuels, Petroleum Coke and Carbon Material

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6045 − 12
Standard Test Method for
Color of Petroleum Products by the Automatic Tristimulus
1
Method
This standard is issued under the fixed designation D6045; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2
1.1 This test method covers the automatic determination of 2.1 ASTM Standards:
D156Test Method for Saybolt Color of Petroleum Products
color of a wide variety of petroleum products such as undyed
(Saybolt Chromometer Method)
motor and aviation gasoline, aviation turbine fuels, naphthas,
D1500Test Method forASTM Color of Petroleum Products
kerosine, pharmaceutical white oils, diesel fuel oils, heating
(ASTM Color Scale)
oils, and lubricating oils by the automatic tristimulus method.
D2500Test Method for Cloud Point of Petroleum Products
This test method correlates to Test Method D156 and Test
D4057Practice for Manual Sampling of Petroleum and
Method D1500 as calculated by the instrumentation.
Petroleum Products
NOTE1—Withtheappropriatesamplehandling,thistestmethodwould
E284Terminology of Appearance
apply to petroleum waxes, but they were not used in the round robin, and
E308PracticeforComputingtheColorsofObjectsbyUsing
the precision of this test method with regard to waxes is unknown.
the CIE System
1.2 This test method reports results in terms ofTest Method
2.2 Energy Institute Standard:
D156 or Test Method D1500.
3
IP 17Determination of Colour—Lovibond Tintometer
1.3 This test method has a one-to-one correlation for the
3. Terminology
entire range of Test Method D1500 ASTM Color and for the
range from 0 to+30 for Test Method D156 Saybolt color.
3.1 Definitions:
3.1.1 ASTM color, n—the name of an empirical scale of
1.4 This test method does not apply to solid samples,
expressing the color of a petroleum liquid darker than Saybolt
petroleum products containing dye, and petroleum products
color based on a scale of 0.5 (lightest) to 8.0 Dil (darkest) and
having extreme fluorescence.
determined by Test Method D1500.
1.5 Thistestmethoddoesnotapplytocloudysamples.Such
3.1.2 CIE—the abbreviation for the French title of the
samples shall be filtered so they are clear before measuring.
International Commission on Illumination, or Commission
1.6 The values stated in SI units are to be regarded as
Internationale de l’Eclairage. E284
standard. No other units of measurement are included in this
3.1.3 CIE Standard Illuminant C, n—Colorimetric
standard.
illuminant, representing daylight with a correlated color tem-
1.7 This standard does not purport to address all of the
perature of 6774 K, defined by the CIE in terms of a relative
safety concerns, if any, associated with its use. It is the
spectral power distribution. E284
responsibility of the user of this standard to establish appro-
3.1.4 CIE 1931 standard observer, n—ideal colorimetric
priate safety and health practices and determine the applica-
observer with color matching functions x(λ), y(λ), z(λ) corre-
bility of regulatory limitations prior to use.
spondingtoafieldofviewsubtendinga2°angleontheretina;
commonly called the “2° Standard Observer.” E284
1 2
This practice is under the jurisdiction ofASTM Committee D02 on Petroleum For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ProductsandLubricantsandisthedirectresponsibilityofSubcommitteeD02.05on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Properties of Fuels, Petroleum Coke and Carbon Material. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Dec. 1, 2012. Published February 2013. Originally the ASTM website.
3
approved in 1996. Last previous edition approved in 2009 as D6045–09. DOI: Methods for Analysis Testing, available from Energy Institute, 61 New
10.1520/D6045-12. Cavendish St., London, WIG 7AR, U.K.
*A Summary of Changes section appears at the end of this standard
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6045 − 12
3.1.5 Saybolt color, n—the name of an empirical scale for 6.1.2 Tristimulus Filter Colorimeter—Instrument designed
expressing of the color of a clear petroleum liquid based on a for high precision color measurement of clear liquids. The
scale of−16 (darkest) to+30 (lightest) and determined byTest instrument shall be capable of converting the light transmitted
Method D156. by a sample (under normal illumination/normal detection) into
tristimulus values (CIE XYZ) using the CIE Standard Illumi-
3.1.6 trist
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6045 − 09 D6045 − 12
Standard Test Method for
Color of Petroleum Products by the Automatic Tristimulus
1
Method
This standard is issued under the fixed designation D6045; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This test method covers the automatic determination of color of a wide variety of petroleum products such as undyed motor
and aviation gasoline, aviation turbine fuels, naphthas, kerosine, pharmaceutical white oils, diesel fuel oils, heating oils, and
lubricating oils by the automatic tristimulus method. This test method correlates to Test Method D156 and Test Method D1500 as
calculated by the instrumentation.
NOTE 1—With the appropriate sample handling, this test method would apply to petroleum waxes, but they were not used in the round robin, and the
precision of this test method with regard to waxes is unknown.
1.2 This test method reports results in terms of Test Method D156 or Test Method D1500.
1.3 This test method has a one-to-one correlation for the entire range of Test Method D1500 ASTM Color and for the range
from 0 to +30 for Test Method D156 Saybolt color.
1.4 This test method does not apply to solid samples, petroleum products containing dye, and petroleum products having
extreme fluorescence.
1.5 This test method does not apply to cloudy samples. Such samples shall be filtered so they are clear before measuring.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D156 Test Method for Saybolt Color of Petroleum Products (Saybolt Chromometer Method)
D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
D2500 Test Method for Cloud Point of Petroleum Products
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
E284 Terminology of Appearance
E308 Practice for Computing the Colors of Objects by Using the CIE System
2.2 Energy Institute Standard:
3
IP 17 Determination of Colour—Lovibond Tintometer
3. Terminology
3.1 Definitions:
3.1.1 ASTM color—color, n—the name of an empirical scale of expressing the color of a petroleum liquid darker than Saybolt
color based on a scale of 0.5 (lightest) to 8.0 Dil (darkest) and determined by Test Method D1500.
1
This practice is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.05 on
Properties of Fuels, Petroleum Coke and Carbon Material.
Current edition approved Dec. 1, 2009Dec. 1, 2012. Published February 2010February 2013. Originally approved in 1996. Last previous edition approved in 20042009
as D6045–04.–09. DOI: 10.1520/D6045-09.10.1520/D6045-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Methods for Analysis Testing, available from Energy Institute, 61 New Cavendish St., London, WIG 7AR, U.K.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6045 − 12
3.1.2 CIE—the abbreviation for the French title of the International Commission on Illumination, or Commission Internationale
de l’Eclairage. E284
3.1.3 CIE Standard Illuminant C—C, n—Colorimetric illuminant, representing daylight with a correlated color temperature of
6774 K, defined by the CIE in terms of a relative spectral power distribution. E284
3.1.4 CIE 1931 standard observer—observer, n—ideal colorimetric observer with color matching functions x(λ), y(λ), z(λ)
corresponding to a field of view subtending a 2° angle on the retina; commonly called the “2° Standard Observer.” E284
3.1.5 Saybolt color—color, n—the name of an empirical scale for expressing of the color of a c
...