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Standard Test Method for Solidification Point of Bisphenol A(4,4´-Isopropylidenediphenol)
Přeložit název
NORMA vydána dne 1.6.2020
Označení normy: ASTM D4493-20
Datum vydání normy: 1.6.2020
Kód zboží: NS-997591
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
bisphenol-A, 4,4´-isopropylidenediphenol, solidification point,, ICS Number Code 71.080.90 (Phenols)
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. |
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1. Scope | ||||||||||||||
1.1 This test method describes the procedure for determination of the solidification point of bisphenol A (4,41.2 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. 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. |
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2. Referenced Documents | ||||||||||||||
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