ASTM D4226 PDF

Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Learn More. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Validating the specifications, value and safety of your raw materials, products and assets.

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Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Learn More. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.

Validating the specifications, value and safety of your raw materials, products and assets. Formally confirming that your products and services meet all trusted external and internal standards.

Intertek Global Website. Toggle navigation Intertek. Industries Services. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.

Inspection Validating the specifications, value and safety of your raw materials, products and assets. Certification Formally confirming that your products and services meet all trusted external and internal standards.

Assurance Testing Inspection Certification. Through our network of over 46, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world. Find out more. Global Reach Intertek is the industry leader with over 46, people in 1, locations in over countries.

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. The test is often used to specify appropriate materials for applications involving impact or to evaluate the effect of secondary finishing operations or other environmental factors on plastic impact properties.

Test Procedure: The test sample rests on a base plate over an opening of specified diameter. An "impactor" sits on top of the test sample with a nose of specified radius in contact with the center of the test sample. A weight is raised inside a guide tube to a predetermined height, then released to drop onto the top of the impactor, forcing the nose through the test sample. The most common method to analyze this data is called the "Bruceton Staircase" method.

Then a series of 20 impacts are conducted. If a test sample passes, the drop height is increased by one unit. If a test sample fails, the drop height is decreased by one unit. Specimen size: For optimum results using the staircase method, a minimum of 30 test samples are necessary. Any flat specimens can be tested - the preferred test sample is a mm 4" disk or plaque.

Standards can be obtained from appropriate standards authorities. Send us a request Need help or have a question? Need help or have a question? Send us a request X Title.

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Historical Version s - view previous versions of standard. More D Compound qualification, finished product quality control, environmental and weatherability research and development studies, and fabrication tolerance prediction constitute useful applications. The geometric uniqueness of the impactor head configurations prevents any comparison or correlation of testing results on samples tested with differing impactor head configurations. In general, the conical impactor, C. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. These notes and footnotes excluding, those in tables in figures shall not be considered as requirements of this standard.

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ASTM D4226

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