2 Mar This standard is issued under the fixed designation D /D M; 1 This test method is under the jurisdiction of ASTM Committee D30 on. ASTM D – Air Permeability of Textile Fabrics . Reference: ASTM D – Standard Test Method for Moisture Absorption Properties and Equilibrium. Astm D – Download as PDF File .pdf), Text File .txt) or read online. Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning.
|Country:||Turks & Caicos Islands|
|Published (Last):||1 January 2013|
|PDF File Size:||3.94 Mb|
|ePub File Size:||12.22 Mb|
|Price:||Free* [*Free Regsitration Required]|
Properties determined in the latter manner shall be reported as apparent properties.
Through our network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world.
Combining values from the two systems may result in nonconformance with the standard. Astm d5229 tests at differing moisture exposure levels are required to establish the dependence of M m on d529 exposure level. A reinforced polymer matrix composite material tested below its glass-transition temperature typically meets this requirement, although two-phase matrices such as toughened epoxies may require a multi-phase moisture absorption model.
Link to Active This link will always route to the current Active version of the standard. The specimens are removed from the conditioning environment periodically, allowed to equilibrate to astm d5229 temperature in a sealed container, and weighed.
Multiple tests at differing temperatures are required to establish the dependence astm d5229 D z on temperature. Astm d5229 the specifications, value and safety of your raw materials, products and assets.
The specimens are then weighed on an analytical balance to the nearest 0. These latter environments may astm d5229 different asttm diffusion characteristics. Touchstone Research Laboratory, Ltd. Other examples of materials and astm d5229 conditions that may not meet the requirements are discussed in Section 6.
Moisture Absorption of Matrix Composites by ASTM D
Immersion in a liquid bath should be used to simulate vapor exposure only when apparent absorption properties are desired for qualitative purposes. Other examples of materials d5292 test conditions that may not meet the requirements are discussed in Section c5229. The values stated in each system are not exact equivalents; astm d5229, each d2529 must be used astm d5229 of the other. Auditing Consulting Sourcing Training. Ast Documents purchase separately The documents listed below are referenced within the subject standard but are not provided astm d5229 part of the standard.
Also included are procedures for determining the moisture loss during aetm temperature testing, as well as moisture loss resulting from thermal exposure after removal astm d5229 the conditioning environment, such as during strain gage bonding.
Send us a aatm Wilton UK: This procedure is atm until there is no discernable increase in specimen weight. Send us a request Need help or have a question? 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.
There are several procedures that are discussed throughout this method. What is Third Party Certification and Accreditation for the food industry? The validity of the equations astm d5229 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 astm d5229 test results themselves determine if the material follows the single-phase Fickian diffusion model.
Procedure B covers general moisture conditioning of material coupons prior to any other material property testing. 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 astm d5229. Formally confirming that your products and services meet all trusted external and internal standards.
Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
ASTM D5229/D5229M – 14
Astm d5229 values astm d5229 in each system are not exact equivalents; therefore, each system must be used independently of the astm d5229. Due to the very large number of tests offered, descriptions of those most commonly requested have been gathered into the following groups:.
The side edges are then sealed astm d5229 prevent moisture absorption through the sides. For many of these materials, moisture equilibrium content is only weakly related to temperature and is usually assumed to be a function only of relative humidity. This procedure will result in the diffusivity constant, Dz and the moisture equilibrium content, Mm at the given moisture exposure level and temperature.
Assurance Testing Inspection Certification. While intended primarily for laminated polymer matrix composite materials, these procedures are also applicable to other materials that satisfy the assumptions of 1. Combining values from the two systems may result in nonconformance with the standard. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
Certification Formally confirming that your products and services astm d5229 all trusted external astm d5229 internal aztm. 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.
Moisture Absorption of Matrix Composites by ASTM D5229
Need help or have a question? It is the responsibility of the user of this standard to establish appropriate safety astm d5229 health practices and determine the applicability of regulatory limitations prior to use. Global Reach Intertek is the industry leader with over 43, people in 1, locations in over countries. The e5229 are then dried, removed from the drying oven, and allowed to cool in a desiccator.
Note 2 — For many polymer matrix composites the moisture absorption properties under atmospheric humid conditions are generally not equivalent to exposure astm d5229 to liquid immersion or to pressurized steam. While intended primarily for laminated polymer matrix composite astm d5229, these procedures are also applicable to other materials that satisfy the assumptions of 1.
Whether your business is local or global, we can ensure your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. Also included are procedures for determining the moisture astm d5229 during elevated temperature testing, as well as moisture loss resulting from astm d5229 exposure after removal from the conditioning environment, such as astm d5229 strain gage bonding.
Inspection Validating the specifications, value and safety of your raw materials, products and assets. The specimens are then placed in the appropriate conditioning environment. Historical Version s – view previous versions of standard. It is the responsibility of the user zstm this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Moisture Absorption of Matrix Composites ASTM D is astm d5229 gravimetric test method that monitors change over time of dd5229 content by measuring the total mass change of a coupon that is exposed to a specified environment.
Procedure D covers the conditioning of material coupons to an essentially moisture-free condition. Procedure A covers astm d5229 determination of the two Fickian moisture diffusion material properties, the moisture diffusitivity constant and moisture equilibrium content.