ASTM D8005-18

Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)

SIGNIFICANCE AND USE
4.1 The major objective of the visual Pt-Co method of color measurement is to rate specific materials for yellowness. The yellowness is frequently the result of the undesirable tendency of liquid hydrocarbons to absorb blue light due to contamination in processing, storage, or shipping.
SCOPE
1.1 This test method covers a procedure for the visual measurement of the color of near clear liquids. It is applicable only to materials in which the color-producing bodies present have light absorption characteristics nearly identical with those of the Platinum-Cobalt (Pt-Co) color standards used.  
1.2 This test method has been found applicable to the color measurement of clear, liquid samples, free of haze, with nominal Pt-Co color values between 0 and 100. It is applicable to nonfluorescent liquids with light absorption characteristics similar to those of the Pt-Co color standard solutions. Test Methods D1209, D1686, and D5386 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 E29.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 31-Jan-2018
• ICS: 17.180.20 - Colours and measurement of light
• ICS: 87.060.20 - Binders
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.01 - Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D8005 − 18
Standard Test Method for
1
Color of Clear Liquids (Platinum-Cobalt Scale)
This standard is issued under the fixed designation D8005; 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* 2. Referenced Documents
2
1.1 This test method covers a procedure for the visual 2.1 ASTM Standards:
measurement of the color of near clear liquids. It is applicable D1193 Specification for Reagent Water
only to materials in which the color-producing bodies present D1209 Test Method for Color of Clear Liquids (Platinum-
have light absorption characteristics nearly identical with those Cobalt Scale)
of the Platinum-Cobalt (Pt-Co) color standards used. D1686 Test Method for Color of Solid Aromatic Hydrocar-
bons and Related Materials in the Molten State (Platinum-
1.2 This test method has been found applicable to the color
Cobalt Scale)
measurement of clear, liquid samples, free of haze, with
D3437 Practice for Sampling and Handling Liquid Cyclic
nominal Pt-Co color values between 0 and 100. It is applicable
Products
to nonfluorescent liquids with light absorption characteristics
D5386 Test Method for Color of Liquids Using Tristimulus
similar to those of the Pt-Co color standard solutions. Test
Colorimetry
Methods D1209, D1686, and D5386 deal with the visual and
D6809 Guide for Quality Control and Quality Assurance
instrumental measurement of near-clear liquids.
Procedures for Aromatic Hydrocarbons and Related Ma-
1.3 In determining the conformance of the test results using
terials
this method to applicable specifications, results shall be
E29 Practice for Using Significant Digits in Test Data to
rounded in accordance with the rounding off methods of
Determine Conformance with Specifications
Practice E29.
E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.4 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this 2.2 Other Documents:
standard. OSHA Regulations, 29 CFR paragraphs 1910.1000 and
3
1910.1200
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Summary of Test Method
responsibility of the user of this standard to establish appro-
3.1 A specimen is placed in a Nessler tube and compared to
priate safety, health, and environmental practices and deter-
a series of prepared Pt-Co standards.
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor-
4. Significance and Use
dance with internationally recognized principles on standard-
4.1 The major objective of the visual Pt-Co method of color
ization established in the Decision on Principles for the
measurement is to rate specific materials for yellowness. The
Development of International Standards, Guides and Recom-
yellowness is frequently the result of the undesirable tendency
mendations issued by the World Trade Organization Technical
of liquid hydrocarbons to absorb blue light due to contamina-
Barriers to Trade (TBT) Committee.
tion in processing, storage, or shipping.
1 2
This test method is under the jurisdiction of ASTM Committee D16 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsi- contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
bility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Standards volume information, refer to the standard’s Document Summary page on
Their Derivatives. the ASTM website.
3
Current edition approved Feb. 1, 2018. Published March 2018. Originally Available from U.S. Government Printing Office Superintendent of Documents,
approved in 2015. Last previous edition approved in 2015 as D8005 – 15. DOI: 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
10.1520/D8005-18. 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 ----------------------
D8005 − 18
TABLE 1 Absorbance Tolerance Limits for No. 500 Platinum-
directed with equal intensity through the tubes, and should be
5
Cobalt Stock Solution
shielded so that no light enters the tubes from the side.
Wavelength, nm Absorbance
430 0.100 to 0.120
6. Reagents
455 0.130 to 0.145
480 0.105 to 0.120
6.1 Purity of Reagents—Reagent grade chemicals shall be
510 0.055 to 0.065
use
...

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: D8005 − 15 D8005 − 18
Standard Test Method for
1
Color of Clear Liquids (Platinum-Cobalt Scale)
This standard is issued under the fixed designation D8005; 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 Scope*
1.1 This test method covers a procedure for the visual measurement of the color of near clear liquids. It is applicable only to
materials in which the color-producing bodies present have light absorption characteristics nearly identical with those of the
Platinum-Cobalt (Pt-Co) color standards used.
1.2 This test method has been found applicable to the color measurement of clear, liquid samples, free of haze, with nominal
Pt-Co color values between 0 and 100. It is applicable to nonfluorescent liquids with light absorption characteristics similar to those
of the Pt-Co color standard solutions. Test Methods D1209, D1686, and D5386 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 E29.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
D1686 Test Method for Color of Solid Aromatic Hydrocarbons and Related Materials in the Molten State (Platinum-Cobalt
Scale)
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D5386 Test Method for Color of Liquids Using Tristimulus Colorimetry
D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 Other Documents:
3
OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
3. Summary of Test Method
3.1 A specimen is placed in a Nessler tube and compared to a series of prepared Pt-Co standards.
1
This test method is under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons Aromatic, Industrial, Specialty and Related Chemicals and is the direct
responsibility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.
Current edition approved June 1, 2015Feb. 1, 2018. Published June 2015March 2018. Originally approved in 2015. Last previous edition approved in 2015 as D8005 –
15. DOI: 10.1520/D8005-15.10.1520/D8005-18.
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’sstandard’s Document Summary page on the ASTM website.
3
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
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 ----------------------
D8005 − 18
4. Significance and Use
4.1 The major objective of the visual Pt-Co method of color measurement is to rate specific materials for yellowness. The
yellowness is frequently the result of the undesirable tendency of liquid hydrocarbons to absorb blue light due to contamination
in processing, storage, or shipping.
5. Apparatus
5.1 Spectrop
...