ASTM D5229 PDF

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.

Author: Mitilar Mazugrel
Country: Great Britain
Language: English (Spanish)
Genre: Automotive
Published (Last): 13 February 2018
Pages: 10
PDF File Size: 15.87 Mb
ePub File Size: 1.28 Mb
ISBN: 474-5-15367-615-8
Downloads: 31276
Price: Free* [*Free Regsitration Required]
Uploader: Dugrel

Due to the very large number of tests offered, descriptions of those most commonly requested have been gathered into the following groups:.

Procedure A covers the determination of the two Fickian moisture diffusion material properties, the moisture diffusitivity constant and moisture equilibrium content. Send us a request Need help or have a question?

Procedure D covers the conditioning of material coupons to d5229 essentially moisture-free condition. 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.

Aztm is a gravimetric test that monitors the change in moisture content over astm d This procedure is repeated until there is no discernable increase in specimen weight. A reinforced polymer matrix composite material tested below its glass-transition temperature ast, meets this requirement, although two-phase matrices such as toughened epoxies may require a multi-phase moisture absorption model.

Auditing Consulting Sourcing Training. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. While intended primarily for laminated polymer matrix composite materials, these procedures are also applicable to other materials that satisfy the assumptions of 1. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.

ASTM D5229 EBOOK

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.

While the astm d procedures themselves may be used for multi-phase materials, astm d calculations used to determine the moisture diffusivity constant in Procedure A are applicable only to astm d materials. Note 1 — For many polymer matrix composites the moisture diffusivity is usually only weakly related to relative humidity and is often assumed to be a function only of temperature, usually following an Arrhenius-type exponential relation with inverse absolute temperature.

  APC AR3150 PDF

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.

Combining values from the two systems may result in nonconformance with the standard. 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.

Moisture Absorption of Matrix Composites by ASTM D

5d229 ASTM D testing provides a variety of procedures in order to determine the moisture d5229 or disorption properties. 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.

Within ASTM D there are three other procedures covering material conditioning within a specific moisture environment. 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. Inspection Validating the specifications, value and safety of your raw materials, products and assets. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations d529 to use.

Immersion in a e5229 bath should be used to simulate vapor exposure only when apparent absorption properties are desired for qualitative purposes. 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.

This procedure will result in the diffusivity constant, Dz and the moisture equilibrium content, Mm at the given moisture exposure level and temperature. Active view current version of standard.

Touchstone Research Laboratory, Ltd.

Moisture Absorption of Matrix Composites by ASTM D5229

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. The specimens are then weighed on an analytical balance to the nearest 0. The c5229 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.

  COURS STRATIGRAPHIE SEQUENTIELLE PDF

Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. This is a gravimetric test that monitors the change in moisture content over time. Multiple tests at differing d5292 are required to establish the dependence of D z on temperature. Note 2 — For many polymer matrix composites the moisture absorption properties under atmospheric humid conditions are generally not equivalent to exposure either to liquid immersion or to pressurized steam.

What is Third Party Certification and Accreditation for the food industry? Link to Active This link will always route to the current Active version of the standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Astm d Testing Inspection Certification. The specimens are removed from the conditioning environment periodically, allowed to equilibrate to room temperature in a sealed container, and weighed.

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 astm d conditioning environment, such as during strain gage bonding.

Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Link to Active This link will always route to the current Active version of the standard. Validating the specifications, value and safety of your raw materials, products and assets.

Send us a request Wilton UK: Due to the very large number of tests offered, descriptions of those most commonly requested have been gathered into the following groups: Need help or have a question? Other examples of materials and test conditions that may not meet the requirements are discussed in Section 6.

Multiple tests at differing moisture exposure levels are required to establish the dependence of M m on moisture exposure level. Asstm how your products and services meet and exceed quality, safety, sustainability and performance standards.