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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Thus, three techniques A: Seal strength is the tensile strength of the seal at ambient temperature. It also identifies the mode of specimen failure.
Assurance Testing Inspection Axtm. Unsupported— Each tail of the specimen is secured in opposing grips and the seal remains unsupported while the test is being conducted. Send us a request Wilton UK: Send us a request Need help or have a question?
Report the algorithm used to calculate the average If failure is by peeling only, calculate energy to separation. Need help or have a question?
ASTM F88 – 07 Standard Test Method for Seal Strength of Flexible Barrier Materials
A rectangular specimen is used; the specimen width may be either 25 mm, 15 mm or 1. Auditing Consulting Sourcing Training.
Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. At a certain temperatures a seal force level is reached which is related to the maximum tensile force of the film. Manual Vise Grips Pneumatic Grips. Each tail of the sealed specimen is secured in the opposing grips of a universal test bench.
Refer to the ASTM specification for conforming test ast. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Align the specimen in the grips so that the seal line is perpendicular to the direction of pull. 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.
Because each technique will produce different results, it is important that the same technique is used for all tests in the same batch and noted in the report. 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.
Seal strength is a astk package requirement and oftentimes it is desirable to limit the strength to facilitate opening the package. Because the effect of each of these on test results is varied, consistent use of one technique Technique A, Technique B, or Technique C throughout a test series is recommended.
A curve can be plotted showing the effect of the sealing conditions mainly temperature on the seal force. Work with us to find the right equipment for your ASTM 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. Certification Formally confirming that your products and services meet all trusted external and internal standards.
Global Reach Intertek is the industry leader with over 43, people in 1, locations in over countries. Examples of fixtures and techniques are illustrated in Fig. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business t88. Maximum Force per Unit Width Identify the mode of specimen failure If significant peeling within the seal area occurs, calculate Average Seal Strength.
ASTM F88 allows for three different sample widths. Properties of interest are the maximum seal force and in some cases the average force to open asm seal.
Standards can be obtained from appropriate standard authorities. Supported deg have been asttm to hold the samples at various angles to help control the bending forces.
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
ASTM F88 / F88M – 15 Standard Test Method for Seal Strength of Flexible Barrier Materials
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Adjust the testing machine to a constant rate of jaw separation. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Seal Strength ASTM F88
Seal strength at some minimum level is a necessary package requirement, and at times it is desirable to limit the strength of the seal to facilitate opening.
Use a sample cutter to cut the test specimens to size. 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. Supported by Hand 90deg; C: This curve is called the asgm curve.
When the sample is loaded in the grips, make sure slack remains in the specimen. Work Item s – proposed revisions of this standard. Pull the sample until separation occurs.
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ASTM F88 Package Seal Strength Testing
Combining values from the two systems may result in non-conformance with the standard. Historical Version s – view previous versions of standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.