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Significance and Use
5.1 Iron may increase the color of bisphenol A and affect other properties of end-use products.
5.2 High purity bisphenol A typically has less than 1 mg/kg of iron.
1.1 This test method covers the procedure to determine the iron content of bisphenol A (4,4′-isopropylidenediphenol).
1.2 This test method has a lower detection limit of 0.1 mg/kg, and an upper limit of 10 mg/kg of iron in bisphenol A. If the iron content is higher, it may be necessary to dilute the sample. A longer path length cell can also be used for better accuracy at lower Fe levels, as well as calibration within the range expected (for example, 0 to 1 mg/kg versus 0 to 10 mg/kg for samples expected to be in the 0 to 1 mg/kg range.
1.3 In determining the 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, health, and environmental practices and determine the applicability of regulatory limits prior to use. For a specific hazard statement, see Section .
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
D4297 Practice for Sampling and Handling Bisphenol A(4,4 -Isopropylidinediphenol)
D4790 Terminology of Aromatic Hydrocarbons and Related Chemicals
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
ICS Number Code 71.040.40 (Chemical analysis)
UNSPSC Code 12191503(Phenols or its substitutes or derivatives)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D6143-18, Standard Test Method for Iron Content of Bisphenol A (4,4