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ASTM D5386-05

(Test Method)

Standard Test Method for Color of Liquids Using Tristimulus Colorimetry

Standard Test Method for Color of Liquids Using Tristimulus Colorimetry

SIGNIFICANCE AND USE
The major objective of the visual platinum-cobalt (Pt-Co) method of color measurement, as defined in Test Method D 1209, is to rate specific materials for yellowness. This yellowness is frequently the result of the undesirable tendency of liquid hydrocarbons to absorb blue light due to contamination in processing, storage or shipping.
Clear liquids can be rated for light absorbing yellowish or brownish contaminants, using scales that simulate the long-established visual-comparison method just cited. Where needed, dimensions of color can be reported to identify any pinkness or greenness (one dimension), or grayness.
SCOPE
1.1 This test method covers an instrumental method for the CIE (Commission International de l'Eclairage) tristimulus measurement of the color of near-clear liquid samples. The measurement is converted to color ratings in the platinum-cobalt system.
1.2 This test method has been found applicable to the color measurement of clear, liquid samples, free of haze, with nominal platinum cobalt color values in the 0 to 100 range. It is applicable to nonfluorescent liquids with light absorption characteristics similar to those of the platinum cobalt color standard solutions. Test Methods D 1686, D 2108, and E 450 deal with the visual and instrumental measurement of near-clear liquids.
1.3 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded in accordance with the rounding off methods of Practice E 29.
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. For specific hazard statements, see Section .

General Information

Status
Historical
Publication Date
14-Oct-2005
ICS
71.080.01 - Organic chemicals in general
Technical Committee
D16 - Aromatic, Industrial, Specialty and Related Chemicals
Drafting Committee
D16.04 - Instrumental Analysis
Current Stage
Ref Project

Relations

Replaces
ASTM D5386-04 - Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
Effective Date
15-Oct-2005
Replaced By
ASTM D5386-10 - Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
Effective Date
01-Jan-2010
Referred By
ASTM D2694-05(2019) - Standard Specification for Diethylene Glycol<sup>,</sup>
Effective Date
15-Oct-2005
Referred By
ASTM D5211-19 - Standard Specification for Xylenes for <emph type="ital">p</emph>-Xylene Feedstock
Effective Date
15-Oct-2005
Referred By
ASTM E805-22 - Standard Practice for Identification of Instrumental Methods of Color or Color-Difference Measurement of Materials
Effective Date
15-Oct-2005
Referred By
ASTM D5606-19 - Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
Effective Date
15-Oct-2005
Referred By
ASTM D2693-22 - Standard Specification for Ethylene Glycol
Effective Date
15-Oct-2005
Referred By
ASTM E202-18 - Standard Test Methods for Analysis of Ethylene Glycols and Propylene Glycols
Effective Date
15-Oct-2005
Referred By
ASTM D4890-18 - Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols
Effective Date
15-Oct-2005
Referred By
ASTM D6367-21 - Standard Specification for AMS (α-Methylstyrene)
Effective Date
15-Oct-2005
Referred By
ASTM D3193-19 - Standard Specification for Ethylbenzene
Effective Date
15-Oct-2005
Referred By
ASTM D3128-07(2021) - Standard Specification for 2-Methoxyethanol
Effective Date
15-Oct-2005
Referred By
ASTM D304-11(2019) - Standard Specification for <emph type="bdit">n</emph>-Butyl Alcohol (Butanol)
Effective Date
15-Oct-2005
Referred By
ASTM D2190-07(2021) - Standard Specification for Vinyl Acetate
Effective Date
15-Oct-2005
Referred By
ASTM E2470-22 - Standard Specification for Polyester Grade Ethylene Glycol
Effective Date
15-Oct-2005

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ASTM D5386-05 - Standard Test Method for Color of Liquids Using Tristimulus ColorimetryASTM D5386-05 - Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
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ASTM D5386-05 - Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
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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:D5386–05
Standard Test Method for
1
Color of Liquids Using Tristimulus Colorimetry
This standard is issued under the fixed designation D5386; 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* D2108 Test Method for Color of Halogenated Organic
Solvents and Their Admixtures (Platinum-Cobalt Scale)
1.1 This test method covers an instrumental method for the
D3437 Practice for Sampling and Handling Liquid Cyclic
CIE (Commission International de l’Eclairage) tristimulus
Products
measurement of the color of near-clear liquid samples. The
E29 Practice for Using Significant Digits in Test Data to
measurement is converted to color ratings in the platinum-
Determine Conformance with Specifications
cobalt system.
E179 Guide for Selection of Geometric Conditions for
1.2 This test method has been found applicable to the color
Measurement of Reflection andTransmission Properties of
measurement of clear, liquid samples, free of haze, with
Materials
nominal platinum cobalt color values in the 0 to 100 range. It
E308 Practice for Computing the Colors of Objects by
is applicable to nonfluorescent liquids with light absorption
Using the CIE System
characteristics similar to those of the platinum cobalt color
E313 Practice for Calculating Yellowness and Whiteness
standard solutions. Test Methods D1686, D2108, and E450
Indices from Instrumentally Measured Color Coordinates
deal with the visual and instrumental measurement of near-
E450 Method for Measurement of Color of Low-Colored
clear liquids.
Clear Liquids Using the Hunterlab Color Difference
1.3 In determining the conformance of the test results using
3
Meter
this method to applicable specifications, results shall be
E691 Practice for Conducting an Interlaboratory Study to
rounded in accordance with the rounding off methods of
Determine the Precision of a Test Method
Practice E29.
2.2 Other Document:
1.4 This standard does not purport to address all of the
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
safety concerns, if any, associated with its use. It is the
4
1910.1200
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3. Summary of Test Method
bility of regulatory limitations prior to use. For specific hazard
3.1 Color is measured by tristimulus values of light trans-
statements, see Section 8.
mitted by a sample as percent of light transmitted by distilled
2. Referenced Documents water. Convert the measured tristimulus values by appropriate
2
equations to the platinum-cobalt scale.
2.1 ASTM Standards:
D1193 Specification for Reagent Water
4. Significance and Use
D1209 Test Method for Color of Clear Liquids (Platinum-
4.1 The major objective of the visual platinum-cobalt (Pt-
Cobalt Scale)
Co) method of color measurement, as defined in Test Method
D1686 Test Method for Color of SolidAromatic Hydrocar-
D1209, is to rate specific materials for yellowness. This
bons and Related Materials in the Molten State (Platinum-
yellowness is frequently the result of the undesirable tendency
Cobalt Scale)
of liquid hydrocarbons to absorb blue light due to contamina-
tion in processing, storage or shipping.
4.2 Clear liquids can be rated for light absorbing yellowish
1
This test method is under the jurisdiction of ASTM Committee D16 on
or brownish contaminants, using scales that simulate the
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
long-established visual-comparison method just cited. Where
Subcommittee D16.04 on Instrumental Analysis.
Current edition approved Oct. 15, 2005. Published December 2005. Originally
approved in 1993. Last previous edition approved in 2004 as D5386 – 04. DOI:
3
10.1520/D5386-05. Withdrawn. The last approved version of this historical standard is referenced
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or on www.astm.org.
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
*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 ----------------------
D5386–05
TABLE 1 Absorbance Tolerance Limits for No. 500 Platinum-
needed, dimensions of color can be reported to
...

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SCOPE
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4.1 Water-insoluble materials present in a solvent expected to be completely water miscible may interfere with many uses of the solvent. This test method provides a measure of the miscibility of water-soluble solvents with a polar medium-water. It also provides a qualitative indication of the presence or absence of water-immiscible contaminants.  
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1.1 This test method covers the determination of the miscibility of water-soluble solvents with water. While written specifically for testing acetone, isopropyl alcohol (isopropanol), and methyl alcohol (methanol), the method is suitable for testing most water-soluble solvents.  
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