ASTM D5229-14(2019)e1
Standard test method for moisture absorption properties and equilibrium conditions of polymer matrix synthetic materials

Standard No.

ASTM D5229-14(2019)e1

Release Date

1970

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D5229/D5229M-20

Latest

ASTM D5229/D5229M-20

Scope

1.1 This test method covers a procedure for the determination of moisture absorption or desorption properties in the through-the-thickness direction for single-phase Fickian solid materials in flat or curved panel form. Also covered are procedures for conditioning test coupons prior to use in other test methods; either to an essentially moisture-free state, to equilibrium in a standard laboratory atmosphere environment, or to equilibrium in a non-laboratory environment. Also included are procedures for determining the moisture loss during elevated temperature testing, as well as moisture loss resulting from thermal exposure after removal from the conditioning environment, such as during strain gauge bonding. While intended primarily for laminated polymer matrix composite materials, these procedures are also applicable to other materials that satisfy the assumptions of 1.2. 1.2 The calculation of the through-the-thickness moisture diffusivity constant in Procedure A assumes a single-phase Fickian material with constant moisture absorption properties through the thickness of the specimen. The validity of the equations used in Procedure A for evaluating the moisture diffusivity constant in a material of previously unknown moisture absorption behavior is uncertain prior to the test, as the test results themselves determine if the material follows the single-phase Fickian diffusion model. A reinforced polymer matrix composite material tested below its glass-transition temperature typically meets this requirement, although twophase matrices such as toughened epoxies may require a multi-phase moisture absorption model. While the test procedures themselves may be used for multi-phase materials, the calculations used to determine the moisture diffusivity constant in Procedure A are applicable only to single-phase materials. Other examples of materials and test conditions that may not meet the requirements are discussed in Section 6. 1.3 The evaluation by Procedure A of the moisture equilibrium content material property does not assume, and is therefore not limited to, single-phase Fickian diffusion behavior. 1.4 The procedures used by this test method may be performed, and the resulting data reduced, by suitable automatic equipment. 1.5 This test method is consistent with the recommendations of CMH-17 Rev G (1),2 which describes the desirable attributes of a conditioning and moisture property determination procedure. 1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in 1 This test method is under the jurisdiction of ASTM Committee D30 on Composite Materials and is the direct responsibility of Subcommittee D30.04 on Lamina and Laminate Test Methods. Current edition approved May 15, 2014. Published May 2014. Originally approved in 1992. Last previous edition approved in 2012 as D5229/D5229M – 12. DOI: 10.1520/D5229_D5229M-14E01. 2 The boldface numbers in parentheses refer to the list of references at the end of this standard. Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States 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. 1 each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.6.1 Within the text the inch-pound units are shown in brackets. 1.7 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. 1.8 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.

ASTM D5229-14(2019)e1 Referenced Document

• ASTM D2584 Standard Test Method for Ignition Loss of Cured Reinforced Resins*， 1994-04-21 Update
• ASTM D2734 Standard Test Methods for Void Content of Reinforced Plastics*， 1994-04-21 Update
• ASTM D3171 Standard Test Methods for Constituent Content of Composite Materials*， 1999-04-21 Update
• ASTM D3878 Standard Terminology Composite Materials*， 2001-09-10 Update
• ASTM D570 Standard Test Method for Water Absorption of Plastics*， 2018-08-01 Update
• ASTM D618 Standard Practice for Conditioning Plastics for Testing*， 2021-07-15 Update
• ASTM D792 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement*， 1998-04-21 Update
• ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update

ASTM D5229-14(2019)e1 history

• 2020 ASTM D5229/D5229M-20 Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials
• 1970 ASTM D5229-14(2019)e1 Standard test method for moisture absorption properties and equilibrium conditions of polymer matrix synthetic materials
• 2019 ASTM D5229/D5229M-14e1 Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials
• 2014 ASTM D5229/D5229M-14 Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials
• 2012 ASTM D5229/D5229M-12 Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials
• 1992 ASTM D5229/D5229M-92(2010) Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials
• 1992 ASTM D5229/D5229M-92(2004) Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials
• 1992 ASTM D5229/D5229M-92(1998)e1 Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials