Formally confirming that your products and services meet all trusted external and internal standards. 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.
The specimen geometry and speed of testing in this test method are controlled to produce tearing in a small area of stress concentration at rates far below those usually encountered in service. Inspection Validating the specifications, value and safety of your raw materials, products and assets. Next Checking to see if you are a qstm visitor…. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
The shape of the specimen is designed to create a tear when the specimen is pulled in tension. Non-repeatability of results Preventing specimen slippage Solutions: Email addresses can only contain letters, numbers and the following special characters: The challenges of testing to this standard are: Actual use performance in tearing of some plastics may not necessarily correlate with data from this test method. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
How can we help you? Therefore, the FIG. Therefore, it is advisable to refer to that 6. Table 1 of separating the movable member grip from the stationary Classification System D lists the ASTM materials stan- member grip at a controlled velocity of 51 mm 2 in. Apparatus nism capable of showing the total tensile load carried by the 6.
The 6. The grips should dance with Test Methods D or Guide D as appropri- minimize both slippage and uneven stress distribution. Fixed grips may be be used to cut all specimens. Wetting the surface of the sample and 6. Lightweight cardboard or a applied so that the long axis of the test specimen will coincide piece of leather belting is suitable.
Care should be taken that with the direction of the applied pull through the center line of the cut edges of the specimen are perpendicular to its other the grip assembly. NOTE 3—The specimens should be aligned as perfectly as possible with the direction of pull so that no rotary motion that may induce slippage will 7.
Test Specimens occur in the grips; there is a limit to the amount of misalignment self-aligning grips will accommodate. In cases where specimens more than 0. The cutting edges of. Polystyrene Polyester It is obtained by pooling the standard deviations of the test results from each laboratory: the case of isotropic materials.
It is a test sample. NOTE 6—For certain materials whose properties vary considerably Record maximum tear resis- desired. Conditioning significant figures. Report Practice D, for those tests where conditioning is required.
In cases of disagreements, the thickness of all test specimens. Procedure The rate of travel of the power activated grip shall be NOTE 7—In this test method, resistance to tear is calculated from the Precision and Bias5 maximum load recorded.
In testing most plastics, this maximum load is generated at the onset of tearing across the mm 0. Record the average thickness in and randomized sections of film were sent to each of the microns mil. It is obtained by for the same material, obtained by the same operator using the pooling the standard deviations of the test results from each laboratory: same equipment on the same day. It is a The data in Table 1 and Table 2 should not be rigorously applied to acceptance or rejection of material, as Keywords those data are specific to the round robin and may not be Committee D20 has identified the location of selected changes to this standard since the last issue D - 09 that may impact the use of this standard.
April 1, ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone , fax , or service astm. Permission rights to photocopy the standard may also be secured from the ASTM website www. Send us a request Wilton UK: Therefore, it is advisable to refer to that material specification before using this test method.
Certification Formally confirming that your products and services meet all trusted external and internal standards. Need help or have a question? Email addresses can only contain letters, numbers and the following special characters: Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. The average asfm of the specimen is measured.
The challenges of testing to this standard are: Subscribe to Our Newsletters. Tear resistance measures the ultimate force required to tear film or sheet. This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are as essential for the working of basic functionalities of the website.
We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience. Necessary cookies are absolutely essential for the website to function properly.
This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information. March 21,
0コメント