It does not appear to be material specic, however the rate of change may be. The measure of Coefficient of Variation CV divides the standard deviation by the average in order to measure the impact of the changes of both measurements. The effect of the increase in variability standard deviation is dependent upon the magnitude of the measured values average.
Because the measured values increase substantially in the supported method, the effect of the increase in standard deviation is less than that of the 90 supported data. 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.
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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. Open navigation menu. Close suggestions Search Search. User Settings. Skip carousel. Carousel Previous. Carousel Next. What is Scribd? Explore Ebooks. Bestsellers Editors' Picks All Ebooks. Explore Audiobooks. Bestsellers Editors' Picks All audiobooks. Explore Magazines. Editors' Picks All magazines. Explore Podcasts All podcasts. Difficulty Beginner Intermediate Advanced.
Explore Documents. Uploaded by tiliad Did you find this document useful? Is this content inappropriate? Report this Document. Flag for inappropriate content. Download now. For Later. Related titles. Carousel Previous Carousel Next. Differences between dynamic and static pass box. Jump to Page. Search inside document. A 12 Nov 07 Designation: F 88 07 Standard Test Method for Seal Strength of Flexible Barrier Materials1 This standard is issued under the xed designation F 88; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
Recommended distance between grips initial unconstrained specimen length is: Copyright by ASTM Int'l all rights reserved for licensee's use only. If the test strip stretches or delaminates during grip travel, the rate of peel will be lower than that calculated 7 Copyright by ASTM Int'l all rights reserved for licensee's use only.
A 12 Nov 07 F 88 07 from the grip separation rate. Therefore they were created using materials from one single lot each, then sealed on a single laboratory sealing machine from each of the three companies volunteering for sample preparation and trimmed to the dened cut size prior to shipping out to the test laboratories and their assigned contacts. This sample size required an extremely high number of samples be made for all laboratories to test all materials and techniques 18 laboratoriess 3 30 samples 3 11 techniques.
A 12 Nov 07 F 88 07 run over the 3 series. Wilmer Gonzalez. Set Up. Isaac Clarcke. Alevj Db. Seven Dang. Indra D. Jhony Cota. Waheeda Mohideen. Agam Yuniar Nugraha.
Gustavo Suarez. Risnanto Hadi. Chanin Ngudsuntear. QC Top Point. Aman Jangra. Jonathan C Montealegre. Anthony Weaver. It also identifies the mode of specimen failure. Standards can be obtained from asgm standard authorities. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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At a certain temperatures a seal force level is reached which is related to the maximum tensile force of the film. Assurance Testing Inspection Certification. Combining values from the two systems may result in non-conformance with the standard.
Inspection Validating the specifications, value and safety of your raw materials, products and assets. A series of seals at different sealing temperatures are made, using a machine employing hot-bar jaws. It is the maximum force required to separate the two layers of a seal under particular conditions. Validating the specifications, value and safety of your raw materials, products and assets. Examples of fixtures and techniques are illustrated in Fig. Year Number of Pages Publisher ASTM.
This test method covers the measurement of the strength of seals in flexible barrier materials. The test may be conducted on seals between a flexible material and a rigid material.
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