ASTM F88 Seal Strength of Flexible Barrier Materials
ASTM F88 is a test method that determines the seal strength of flexible barrier materials such as pouches, bags, and wraps. This method is commonly used in the food and pharmaceutical industries to ensure that the packaging of the products is suitable for their intended use.
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Introduction to ASTM F88
ASTM F88 is a standard test method used to determine the seal strength of flexible barrier materials. The test method is used to evaluate the integrity of the seals of flexible packaging materials such as pouches, bags, and wraps. The results obtained through this method are especially used for quality control, reliability check, performance evaluation, and specification purposes.
Seal strength is an important characteristic of flexible barrier materials. It is the measure of the force required to separate the two sides of the seal. ASTM F88 provides a standard method for determining the seal strength of flexible barrier materials. The final values of the procedure are stated in standard units of SI.
ASTM F88 Test Method
The ASTM F88 test method involves preparing a sample of the flexible barrier material with a seal across the middle of the sample. The sample is then placed in a testing machine and a force is applied to one end of the sample to separate the two sides of the seal. The force required to separate the two sides of the seal is measured and used to determine the seal strength.
The ASTM F88 test method has two different modes of testing, namely the Pouch Method and the Tensile Method. The method used depends on the type of material being tested and the intended use of the material.
The Pouch Method
The Pouch Method is used for materials that have a peelable seal and are intended for use in pouches or bags.
The Tensile Method
The Tensile Method is used for materials that have a non-peelable seal and are intended for use in wraps or sachets.
ASTM F88 Specimens
Specimen details
The specimen used in the ASTM F88 test method is a sample of flexible barrier material. The sample is typically in the form of a rectangular shape with a seal across the middle of the sample.
Specimen dimensions
The acceptable specimen thickness for ASTM F88 is a sample with a minimum width of 25mm and a length of at least 75mm.
Specimen preparation
Specimen is prepared by cutting a sample of the flexible barrier material to the desired size and sealing the sample across the middle using a specified method. The sealing conditions are also specified by the standard, including the temperature, pressure, and time.
ASTM F88 Results
The results of the ASTM F88 test method are reported as the seal strength of the flexible barrier material. The seal strength is calculated as the force required to separate the two sides of the seal. The results are used to evaluate the quality of the flexible barrier material and to ensure that it meets the necessary specifications for its intended use.
Tests related to ASTM F88
ASTM F88 is related to several other ASTM standards that measure the properties of flexible barrier materials. These standards include ASTM F1921 for determining the hot tack of flexible packaging materials, ASTM D1894 for measuring the static and kinetic coefficients of friction of plastic film and sheeting, and ASTM D882 for measuring the tensile properties of thin plastic sheeting. These tests are commonly used in conjunction with the ASTM F88 test method to fully evaluate the properties of flexible barrier materials.
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