ASTM D4493-20

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

SIGNIFICANCE AND USE
5.1 The solidification point of bisphenol A is a direct indication of its purity, although it gives no information as to the nature of any impurities present.  
5.2 High purity bisphenol A has a solidification point of approximately 157°C.  
5.3 This test method can be used for internal quality control or for setting specifications.
SCOPE
1.1 This test method describes the procedure for determination of the solidification point of bisphenol A (4,4′-isopropylidene diphenol).  
1.2 The test method has been found applicable for determination of the solidification point between 150 and 157°C.  
1.3 In determining conformance of the test results using this 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 Warning—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.  
1.6 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 9.  
1.7 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: Published
• Publication Date: 31-May-2020
• ICS: 71.080.90 - Phenols
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.02 - Oxygenated Aromatics

Standards Content (Sample)

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.
Designation: D4493 −20
Standard Test Method for
Solidification Point of Bisphenol A
1
(4,4'-Isopropylidenediphenol)
This standard is issued under the fixed designation D4493; 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 describes the procedure for determina- 2.1 ASTM Standards:
tion of the solidification point of bisphenol A (4,4'- D1493 Test Method for Solidification Point of Industrial
3
isopropylidene diphenol). Organic Chemicals (Withdrawn 2004)
D4297 PracticeforSamplingandHandlingBisphenolA(4,4'
1.2 The test method has been found applicable for determi-
-Isopropylidinediphenol)
nation of the solidification point between 150 and 157°C.
D6809 Guide for Quality Control and Quality Assurance
1.3 In determining conformance of the test results using this
Procedures for Aromatic Hydrocarbons and Related Ma-
methodtoapplicablespecifications,resultsshallberoundedoff
terials
in accordance with the rounding-off method of Practice E29.
E1 Specification for ASTM Liquid-in-Glass Thermometers
1.4 The values stated in SI units are to be regarded as E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
standard. No other units of measurement are included in this
standard. E77 Test Method for Inspection and Verification of Ther-
mometers
1.5 Warning—Mercury has been designated by many regu-
E691 Practice for Conducting an Interlaboratory Study to
latory agencies as a hazardous substance that can cause serious
Determine the Precision of a Test Method
medicalissues.Mercury,oritsvapor,hasbeendemonstratedto
2.2 Other Documents:
be hazardous to health and corrosive to materials. Use caution
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
when handling mercury and mercury-containing products. See
4
1910.1200
the applicable product Safety Data Sheet (SDS) for additional
information. The potential exists that selling mercury or
3. Terminology
mercury-containing products, or both, is prohibited by local or
3.1 Definitions:
national law. Users must determine legality of sales in their
3.1.1 solidification point, n—the temperature at which the
location.
liquid phase of a substance is in approximate equilibrium with
1.6 This standard does not purport to address all of the
a relatively small amount of the same substance in its solid
safety concerns, if any, associated with its use. It is the
phase.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 4. Summary of Test Method
mine the applicability of regulatory limitations prior to use.
4.1 Bisphenol A is melted, and then cooled slowly with
For specific hazard statements, see Section 9.
constant agitation. When crystallization begins, and super-
1.7 This international standard was developed in accor-
cooling occurs, the temperature falls to a minimum, rises to a
dance with internationally recognized principles on standard-
maximum, and then falls again. The maximum temperature
ization established in the Decision on Principles for the
attained after crystallization begins is the solidification point of
Development of International Standards, Guides and Recom-
bisphenol A.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
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
1
This test method is under the jurisdiction of ASTM Committee D16 on the ASTM website.
3
Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsi- The last approved version of this historical standard is referenced on
bility of Subcommittee D16.02 on Oxygenated Aromatics. www.astm.org.
4
Current edition approved June 1, 2020. Published June 2020. Originally AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
approved in 1985. Last previous edition approved in 2016 as D4493 – 16. DOI: 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
10.1520/D4493-20. 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

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D44
...

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: D4493 − 16 D4493 − 20
Standard Test Method for
Solidification Point of Bisphenol A
1
(4,4'-Isopropylidenediphenol)
This standard is issued under the fixed designation D4493; 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 describes the procedure for determination of the solidification point of bisphenol A (4,4'-isopropylidene
diphenol).
1.2 The test method has been found applicable for determination of the solidification point between 150 and 157°C.
1.3 In determining conformance of the test results using this 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 Warning—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious
medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution
when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional
information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national
law. Users must determine legality of sales in their location.
1.6 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 9.
1.7 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:
3
D1493 Test Method for Solidification Point of Industrial Organic Chemicals (Withdrawn 2004)
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
E1 Specification for ASTM Liquid-in-Glass Thermometers
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E77 Test Method for Inspection and Verification of Thermometers
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 Other Documents:
4
OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
3. Terminology
3.1 Definitions:
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 June 1, 2016June 1, 2020. Published June 2016June 2020. Originally approved in 1985. Last previous edition approved in 20122016 as
D4493 – 12.D4493 – 16. DOI: 10.1520/D4493-16.10.1520/D4493-20.
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
The last approved version of this historical standard is referenced on www.astm.org.
4
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 ----------------------
D4493 − 20
3.1.1 solidification point, n—the temperature at which the liquid phase of a substance is in approximate equilibrium with a
relatively small amount of the same substance in its solid phase.
4. Summary of Test Method
4.1 Bisphenol A is melted, and then cooled slowly with constant agitation. W
...