ASTM D2930-03
Standard Test Method for Maleic Acid in Maleic Anhydride by Potentiometric Titration
- Standard No.
- ASTM D2930-03
- Release Date
- 2003
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- 2012-01
- Latest
- ASTM D2930-03
- Scope
The maleic acid content is usually an indication of exposure to moisture in air. Maleic anhydride reacts with moisture to form maleic acid.
1.1 This test method covers the determination of free maleic acid in refined maleic anhydride by potentiometric titration.
1.2 This test method is applicable for all concentrations of maleic acid; however, it is primarily used for concentrations below 0.5 %.
1.3 The following applies to all specified limits in this standard: For purposes of determining conformance with this standard, 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 E 29.
1.4 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 7.
ASTM D2930-03 Referenced Document
- ASTM D1193 Standard Specification for Reagent Water
- ASTM D3438 Standard Practice for Sampling and Handling Naphthalene, Maleic Anhydride, and Phthalic Anhydride
- ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM D2930-03 history
- 2003 ASTM D2930-03 Standard Test Method for Maleic Acid in Maleic Anhydride by Potentiometric Titration
- 1994 ASTM D2930-94 Standard Test Method for Maleic Acid in Maleic Anhydride by Potentiometric Titration
