Significance and Use
5.1 This test method may be used for process control during the manufacture of organic chemicals described in Section 1, for setting specifications, for development and research work, and to determine if contamination was introduced during shipment.
1.1 This test method covers a general procedure for determining the solidification point of most organic chemicals having appreciable heats of fusion and solidification points between 4 and 41°C.
—Other test methods for determining freeze point and solidification point of aromatic hydrocarbons include Test Methods D852, D1015, D1016, D3799, D4493, and D6269.
1.2 This test method is applicable to relatively pure compounds only. Solidification point depression is dependent on impurity concentrations.
1.3 The following applies to all specified limits in this test method: for purposes of determining conformance with applicable specifications using this test method, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right hand digit used in expressing the specification limit, 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 and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 8, Hazards.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D852 Test Method for Solidification Point of Benzene
D1015 Test Method for Freezing Points of High-Purity Hydrocarbons
D1016 Test Method for Purity of Hydrocarbons from Freezing Points
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D3438 Practice for Sampling and Handling Naphthalene, Maleic Anhydride, and Phthalic Anhydride
D3852 Practice for Sampling and Handling Phenol, Cresols, and Cresylic Acid
D4297 Practice for Sampling and Handling Bisphenol A (4,4 -Isopropylidinediphenol)
D4493 Test Method for Solidification Point of Bisphenol A (4,4`-Isopropylidenediphenol)
D6269 Test Method for Solidification Point of p-Xylene
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
benzene; cyclohexane; p-Xylene; solidification point;
ICS Number Code 71.080.01 (Organic chemicals in general)
ASTM International is a member of CrossRef.
Citing ASTM Standards
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