ASTM D5229 PDF

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.

Author: Dinos Vokinos
Country: Bosnia & Herzegovina
Language: English (Spanish)
Genre: Health and Food
Published (Last): 23 August 2013
Pages: 457
PDF File Size: 3.91 Mb
ePub File Size: 17.8 Mb
ISBN: 758-5-80467-218-7
Downloads: 30985
Price: Free* [*Free Regsitration Required]
Uploader: Zologami

It is the responsibility of the user of this standard to establish appropriate safety and health practices and adtm the applicability of regulatory limitations prior to use.

ASTM D5229/D5229M – 14

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. Procedure D covers the conditioning of material coupons to an essentially moisture-free condition. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.

The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Multiple tests at differing moisture exposure levels are required to establish the dependence of M m on moisture exposure level.

Norma ASTM D/DM

Combining values from the two systems may result in nonconformance with the standard. 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. 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 astm d prior to the test, as the test results themselves determine if the material follows the single-phase Fickian diffusion model.

Other examples of materials and test conditions that may not meet the requirements astm d discussed in Section 6.

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. 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. Astm d confirming that your products and services meet all trusted external astm d internal standards.

TOP Related Articles  VERSETS SATANIQUES DOWNLOAD

A reinforced polymer matrix composite material tested below its d5292 astmm typically meets this requirement, although two-phase matrices such as toughened epoxies may require a multi-phase moisture absorption model. Properties determined in the latter aetm shall astm d reported as apparent properties. 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. ASTM D e5229 provides a variety of procedures in order to determine the moisture absorption or disorption properties. 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.

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 d materials. 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. 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 wstm materials and test conditions that may not meet the requirements are discussed in Section 6. The specimens are removed from the conditioning environment periodically, allowed to equilibrate to room temperature in a sealed container, and weighed. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.

ASTM D5229 EBOOK

This procedure will result in the diffusivity constant, Dz and the moisture equilibrium content, Mm at the given moisture exposure level and temperature.

Global Reach Intertek is the industry leader with over 43, people in 1, locations in over countries. Enabling you to identify and mitigate c5229 intrinsic risk in your operations, supply chains and business processes. While the test procedures asfm may be used for multi-phase materials, the calculations used to determine the moisture diffusivity constant in Procedure A are applicable astm d to single-phase materials.

Moisture Absorption of Matrix Composites ASTM D is a gravimetric test method that monitors change over time of moisture content by measuring the total mass change of a coupon astm d is exposed astm d a specified environment. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

TOP Related Articles  AMS2750D PDF

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. Procedure D covers the conditioning of material coupons to an essentially moisture-free condition. What is Third Party Certification and Accreditation for the food industry? Link atm Active This link will always route to the current Active satm of awtm standard.

Other examples of materials and test conditions that may not meet the astm d are discussed in Section 6. The specimens are then weighed on an analytical balance to the nearest 0.

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

Validating the specifications, value and safety of your raw materials, products and assets. ASTM D229 testing provides a variety of procedures in order astk determine the moisture absorption or disorption properties.

There are several procedures that are discussed throughout this method. Due to the very large number of tests offered, descriptions of those most commonly requested have been asstm into the following groups:. Select from list below: Moisture Absorption of Matrix Composites ASTM D is a gravimetric test method that monitors change over time of moisture content by measuring the total mass change of a coupon that is exposed to a specified environment.

This procedure is repeated until there is no discernable increase in specimen weight.

Moisture Absorption of Matrix Composites by ASTM D

The specimens are removed from the conditioning environment periodically, allowed to equilibrate to room temperature in a astm d container, and weighed. This procedure will result in astm d diffusivity constant, Dz and astm d moisture equilibrium content, Mm at the given moisture exposure level and temperature. Note 1 — For many polymer matrix composites the moisture diffusivity is usually only weakly related to relative humidity and is often assumed to be asstm function only astm d temperature, usually following an Arrhenius-type exponential relation with inverse absolute temperature.