This standard is issued under the fixed designation D ; the number 1 These test methods are under the jurisdiction of ASTM Committee D20 on. Plastics. ASTM D test assesses the energy required to crack or break rigid plastics sheeting and profile flat sections employed in building products. Learn more. Purchase your copy of ASTM D – 16 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available.
|Published (Last):||21 September 2018|
|PDF File Size:||8.1 Mb|
|ePub File Size:||1.50 Mb|
|Price:||Free* [*Free Regsitration Required]|
An “impactor” sits on top of the test sample with a nose of specified radius in contact with the center of the test sample. The test sample rests on a base plate over an opening of 4d226 diameter.
For optimum results using the staircase method, a minimum of 30 test samples are necessary. Then a series of 20 impacts are conducted. These notes and footnotes excluding, those in tables in figures shall not be considered as requirements of this standard. Specific precautionary statements are given in Section 8.
Historical Version s – d2426 previous versions of standard. The geometric uniqueness of the impactor head configurations prevents any comparison or correlation of testing results on samples tested with differing impactor head configurations.
Gardner Impact ASTM D, D
Send us a request Need help or have a question? Standards can be obtained from appropriate standards authorities. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries. Auditing Consulting Sourcing Training.
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. Formally confirming that your products and services meet all trusted external and internal standards. If a test sample passes, the drop height is increased by one unit. 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.
The most common method to analyze this data is called the “Bruceton Staircase” method. Validating the specifications, value and safety of your raw materials, products and assets. Any flat specimens can be tested – the preferred test sample is a mm 4″ disk or plaque. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
In general, the conical impactor, C. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
There is no known ISO equivalent to this 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.
Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Whether your business is local or global, we can ensure your products meet d4226, health, environmental, safety, and social accountability standards for virtually any market around the world.
If a test sample fails, the drop height is decreased by one unit.
Need help or have a question? The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Falling dart impact, also known as Gardner impact, is aetm traditional method for evaluating the impact strength or toughness of a plastic material.
Compound qualification, finished product quality control, environmental and weatherability research and development studies, and fabrication tolerance prediction constitute useful applications.
ASTM D4226 – 16
A weight is raised inside a guide sstm to a predetermined height, then released to drop onto the top of the impactor, forcing the nose through the test sample. Send us a request Wilton UK: Assurance Testing Inspection Certification. Certification Formally confirming that your products and services meet all trusted external and internal standards. Referenced Documents purchase separately The documents listed below are referenced within the subject standard wstm are not provided as part of the standard.
Link to Active This link will always route to the current Active version of the standard. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Equivalent surface conditions are more likely to occur when specimens are prepared by compression molding or x4226 than by injection molding.
Inspection Validating the specifications, value and safety of your raw materials, products and assets.