ASTM F 88 covers the measurement of the strength of seals in flexible barrier materials. The test measures the force needed to separate a test strip of the. Seal Strength ASTM F Ultimate Seal Strength of Thermoplastics ASTM F Scope: Seal strength is the tensile strength of the seal at ambient temperature. ISO , Annex B. – Seal Strength. • ASTM F88 – Standard test method for seal strength of flexible barrier materials. • ASTM F – Standard test method.
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Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Work with us to find the right equipment for your ASTM standard. A portion of the force measured to open the seal may as a result of bending forces. A rectangular specimen is used; the specimen width may be either 25 mm, 15 mm or 1.
Assurance Testing Inspection Certification. Report the algorithm used to calculate the average If failure is by peeling only, calculate energy to separation. Pull the sample until separation occurs. Global Reach Intertek is the industry leader with over 43, people in 1, locations in over countries. Certification Formally confirming that your products and services meet all trusted external and internal standards.
Send us a request Wilton UK: Link to Active This link will always route to the current Active version of the standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
ASTM F88 – 07 Standard Test Method for Seal Strength of Flexible Barrier Materials
It also identifies the mode of specimen failure. Thus, three techniques A: Supported by Hand 90deg; C: A series of seals at different sealing temperatures are made, using a machine employing hot-bar jaws. Unsupported— Each astk of the specimen is astk in opposing grips and the seal remains unsupported while the test is being conducted. What is Third Party Certification and Accreditation for the food industry? Maximum Force per Unit Width Identify the mode of specimen failure If significant peeling within the seal area occurs, calculate Average Seal Strength.
Align the specimen in the grips so that the seal line is perpendicular to the direction of pull. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM F88 Package Seal Strength Testing
Standards can be obtained from appropriate standard authorities. Manual Vise Grips Pneumatic Grips. Formally confirming that your atm and services meet all trusted external and internal standards.
A curve can be plotted showing the effect of the sealing conditions mainly temperature on the seal force. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
Seal Strength ASTM F88
Seal strength is a necessary package requirement and oftentimes it is desirable to limit the strength to facilitate opening the package. When the sample is loaded in the grips, make sure slack remains in the specimen. Supported deg have been devised to hold the samples at various angles to help control the bending forces. Each tail of the sealed specimen is secured in the opposing grips of a universal test bench.
This curve is called the f88 curve. The maximum tensile force required to separate the two ends of the seal is recorded. Sales Support Calibration Calculators. A number of fixtures and techniques have been devised to hold samples at various angles to the pull direction to control this bending force.
Work Item s – proposed revisions of this standard.