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Scope

1.1 This test method permits flexible barrier films and laminates to be characterized for slow rate penetration resistance to a driven probe. The test is performed at room temperature, by applying a biaxial stress at a single test velocity on the material until perforation occurs. The force, energy, and elongation to perforation are determined.

1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.

Significance and Use

Penetration resistance is an important end-use performance of thin flexible materials where a sharp-edged product can destroy the integrity of a barrier wrap. This will permit package entry/exit of gases, odors, and unwanted contaminates, causing potential harm to the product and reducing shelf-life. Material response to penetration will vary with numerous factors, such as film thickness, elastic modulus, rate of penetration, temperature, shape and type of probe. Consequently, material responses from puncture to stretch may be observed and quantified using this method. Although numerous combinations of experimental factors can be devised and used to simulate specific end-use applications, the recommended conditions in this method should be followed for standard comparisons of materials.

Keywords

Contamination; Flexible barrier materials; Laminates; Packing/packaging materials/systems; Penetration; Penetration resistance; Perforations; Probe methods; Puncture; Puncture testing; Slow rate penetration; Stress; Stretch properties; ICS Number Code 55.040 (Packaging materials and accessories); 83.140.10 (Films and sheets)

To find similar documents by ASTM Volume:

15.10 (Packaging; Flexible Barrier Packaging)

To find similar documents by classification:

55.040 (Packaging materials and accessories Including wrappers, paper, films, foils, cords, sealing devices, cushioning, etc. Adhesive tapes for general purposes, see 83.180)

83.140.10 (Films and sheets Including plates)

91.100.50 (Binders. Sealing materials Including geomembranes, asphalts for buildings, etc.)

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