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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.
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 .
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1493 Test Method for Solidification Point of Industrial Organic Chemicals
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
ICS Number Code 71.080.90 (Phenols)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D4493-16, Standard Test Method for Solidification Point of Bisphenol A