ASTM D4329 PDF

ASTM D tests for fluorescent UV exposure of plastics. It covers specific procedures and test conditions based on practices ASTM G and ASTM G This standard is issued under the fixed designation D ; the number 1 This practice is under the jurisdiction of ASTM Committee D on Plastics. 7 Jun ASTM D – Designation: D – 05 Standard Practice for Fluorescent UV Exposure of Pla.

Author: Dakinos Fenrile
Country: Singapore
Language: English (Spanish)
Genre: Music
Published (Last): 14 April 2009
Pages: 481
PDF File Size: 17.52 Mb
ePub File Size: 6.64 Mb
ISBN: 200-4-77875-559-4
Downloads: 58674
Price: Free* [*Free Regsitration Required]
Uploader: Gugor

Note 2 — Additional information on sources of variability and on strategies for addressing variability in the design, execution, and data analysis of laboratory-accelerated exposure tests is found in Guide G Formally confirming that your products and services meet all trusted external and internal standards.

Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.

Send us a request Need help or have a question?

ASTM D4329

Moisture is provided by forced condensation, and temperature is controlled by heaters. Hemispherical on 37 Tilted Surface.

Up to 20 test samples are mounted in the QUV and subjected to a cycle of exposure to intense ultraviolet radiation followed by moisture exposure by condensation. Often several exposure times such as, and hours also will be compared to each atsm.

The values given in parentheses are for information only. 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.

Assurance Testing Inspection Certification. These cycles would be continued for extended periods of time – up to thousands of hours – simulating even longer periods of time in the real world.

  LA CAUTIVA DEL AMOR JOHANNA LINDSEY PDF

Accelerated weathering simulates damaging effects of long term outdoor exposure of materials and coatings.

Aetm to Practice G for detailed information on the caveats applicable to use of results obtained in accordance with this practice.

Need help or have a question? Warning— Variation in results may be expected when operating conditions ast, varied within the accepted limits of this practice. Send us a request Wilton UK: Historical Version s – view previous versions of standard.

It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results.

The standard sample holders can hold one sample 3 x 12 inches 75 x mm or two samples 3 x 6 inches aetm x mm. Validating the specifications, value and safety of your raw materials, products and assets. Typically, flat f4329 or disks are used for accelerated weathering studies. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Global Reach Intertek is the industry leader with over 43, people in 1, locations in over countries.

Link to Active This link will always route to the current Active version of the standard.

ASTM D | Rycobel

Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Parts may be accommodated depending on size.

This practice is intended to induce property changes associated with end-use conditions, including the effects of ultraviolet solar irradiance, moisture, and heat. No direct correlation can be made between accelerated weathering duration and actual outdoor exposure duration. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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. Standards can be obtained from appropriate standard authorities.

  DIZIONARIO DELLE COSE PERDUTE GUCCINI PDF

Inspection Validating the aetm, value and safety of your raw materials, s4329 and assets. Auditing Consulting Sourcing Training. The exposure used in this practice is c4329 intended to simulate the deterioration caused by localized weather phenomena, such as, atmospheric pollution, biological attack, and saltwater exposure.

Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Therefore, no reference to the use of this practice should be made unless accompanied by a report prepared in accordance with Section 8 that describes the specific operating conditions used.

Accelerated weathering provides exposed samples for comparison to unexposed control samples. However, performance comparisons under the controlled conditions of accelerated weathering can be compared to documented performance of materials and coatings that have experienced extended periods of end use exposure.

Significant factors include regulation of line voltage, temperature of the room in which the device operates, temperature control, and condition and age of the lamp. Through our network of over 43, people in 1, laboratories and offices in 4d329, Intertek provides quality and safety solutions to a wide range of industries around the world.

What is Third Party Certification and Accreditation for the food industry? Certification Formally confirming that your products and services meet all trusted external and internal standards. A QUV test chamber uses fluorescent lamps to provide a radiation spectrum centered in the ultraviolet wavelengths.

This practice also axtm the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.