ASTM D4789-20

Standard Test Method for Solution Color of Bisphenol A (4,4<emph type="ital">′</emph >-Isopropylidenediphenol)

SIGNIFICANCE AND USE
4.1 Color is caused by impurities in the bisphenol A. The acceptable amount of color depends on the end-use of the bisphenol A.  
4.2 This test method can be used for internal quality control. This method provides the information required to set specifications.
SCOPE
1.1 This test method covers the procedure for determination of the Platinum-Cobalt Color of bisphenol A (4,4′-Isopropylidenediphenol) dissolved in methanol.  
1.2 This test method has been found applicable for the determination of solution color of bisphenol A to 20 Pt–Co color units.  
1.3 The following applies for the purposes of determining the conformance of the test results using this test method to applicable specifications, results shall be rounded off in accordance with the rounding-off method 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. For specific hazard statements, see Section 8.  
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: 30-Sep-2020
• ICS: 71.080.90 - Phenols
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.02 - Oxygenated Aromatics

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D4789 − 20
Standard Test Method for
1
Solution Color of Bisphenol A (4,4'-Isopropylidenediphenol)
This standard is issued under the fixed designation D4789; 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* D6809 Guide for Quality Control and Quality Assurance
Procedures for Aromatic Hydrocarbons and Related Ma-
1.1 This test method covers the procedure for determination
terials
of the Platinum-Cobalt Color of bisphenol A (4,4'-
E29 Practice for Using Significant Digits in Test Data to
Isopropylidenediphenol) dissolved in methanol.
Determine Conformance with Specifications
1.2 This test method has been found applicable for the
E691 Practice for Conducting an Interlaboratory Study to
determination of solution color of bisphenol A to 20 Pt–Co
Determine the Precision of a Test Method
color units.
2.2 Other Documents:
1.3 The following applies for the purposes of determining
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
3
the conformance of the test results using this test method to
1910.1200
applicable specifications, results shall be rounded off in accor-
dance with the rounding-off method of Practice E29.
3. Summary of Test Method
1.4 The values stated in SI units are to be regarded as
3.1 Bisphenol A is dissolved in methanol. This solution is
standard. No other units of measurement are included in this
then transferred to a color comparison tube and the color
standard.
compared to that of the Platinum-Cobalt Color Standards,
1.5 This standard does not purport to address all of the either visually or by means of a spectrophotometer. The color
safety concerns, if any, associated with its use. It is the is reported as that closest to the applicable standard.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 4. Significance and Use
mine the applicability of regulatory limitations prior to use.
4.1 Color is caused by impurities in the bisphenol A. The
For specific hazard statements, see Section 8.
acceptable amount of color depends on the end-use of the
1.6 This international standard was developed in accor-
bisphenol A.
dance with internationally recognized principles on standard-
4.2 Thistestmethodcanbeusedforinternalqualitycontrol.
ization established in the Decision on Principles for the
This method provides the information required to set specifi-
Development of International Standards, Guides and Recom-
cations.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5. Interferences
2. Referenced Documents
5.1 The presence of any turbidity or haze will affect the
2
color reading.
2.1 ASTM Standards:
D1193 Specification for Reagent Water
5.2 AbisphenolAcolorthatisoff-hue,ortintedwithrespect
D4297 PracticeforSamplingandHandlingBisphenolA(4,4'
to the color standards, may interfere with proper color com-
-Isopropylidinediphenol)
parison.
6. Apparatus
1
This test method is under the jurisdiction of ASTM Committee D16 on
6.1 Color Comparison Tubes—Matched Nessler tubes with
Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsi-
50 mL or 100 mL graduation marks, or both, provided with
bility of Subcommittee D16.02 on Oxygenated Aromatics.
ground-on, optically clear, glass caps.
Current edition approved Oct. 1, 2020. Published December 2020. Originally
approved in 1988. Last previous edition approved in 2012 as D4789 – 12. DOI:
10.1520/D4789-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. 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 ----------------------
D4789 − 20
TABLE 2 Platinum-Cobalt Color Standards
6.2 Tube Racks, constructed to keep the tubes upright and to
permit visual comparison of light transmitted through Nessler Color Standard Stock Solution, Color Standard Stock Solution,
Number mL Number mL
tubes in the direction of their longitudinal axis; and so that
1 0.2 11 2.2
white light is passed through or reflected off a white glass plate
2 0.4 12 2.4
and directed with equal intensity through the tubes.
3 0.6 13 2.
...

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: D4789 − 12 D4789 − 20
Standard Test Method for
1
Solution Color of Bisphenol A (4,4'-Isopropylidenediphenol)
This standard is issued under the fixed designation D4789; 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 describescovers the procedure for determination of the Platinum-Cobalt Color of bisphenol A (4,4'-
Isopropylidenediphenol) dissolved in methanol.
1.2 This test method has been found applicable for the determination of Platinum-Cobaltsolution color of bisphenol A betweento
20 and 100 Pt–Co color units.
1.3 The following applies for the purposes of determining the conformance of the test results using this test method to applicable
specifications, results shall be rounded off in accordance with the rounding-off method 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. For specific hazard statements, see Section 8.
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:
D1209D1193 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)Specification for Reagent Water
D4297 Practice for Sampling and Handling Bisphenol A(4,4' -Isopropylidinediphenol)
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
E180E691 Practice for Determining Conducting an Interlaboratory Study to Determine the Precision of ASTM Methods for
Analysis and Testing of Industrial and Specialty Chemicalsa Test Method (Withdrawn 2009)
2.2 Other Documents:
3
OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
5
NIST Letter Circular LC 1017, Standard for Checking the Calibration of Spectrophotometers (200 to 1000 nm)
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 D16.02 on Oxygenated Aromatics.
Current edition approved Aug. 15, 2012Oct. 1, 2020. Published August 2012December 2020. Originally approved in 1988. Last previous edition approved in 20082012
as D4789 – 08.D4789 – 12. DOI: 10.1520/D4789-12.10.1520/D4789-20.
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
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 ----------------------
D4789 − 20
3. Summary of Test Method
3.1 Bisphenol A is dissolved in methanol. This solution is then transferred to a color comparison tube and the color compared to
that of the Platinum-Cobalt Color Standards, either visually or by means of a spectrophotometer. The color is reported as that
closest to the applicable standard.
4. Significance and Use
4.1 Color is caused by impurities in the bisphenol A. The acceptable amount of color depends on the end-use of the bisphenol A.
4.2 This test method can be used for internal quality control or for setting control. This method provides the information required
to set specifications.
5. Interferences
5.1 The presence of any turbidity or haze will affect the color reading.
5.2 A bisphenol A co
...