This standard specifies materials and a procedure to detect and locate a leak greater than or equal to a channel formed by a 50 µm (0,002 inch) wire in package edge seals formed between a clear film and a porous sheet material. A dye penetrant solution is applied locally to the seal edge to be tested for leaks.
This standard is limited to porous materials that can retain the dye penetrant solution and prevent discoloration of the entire sealing area for at least 20 s. Uncoated papers are particularly susceptible to leakage and should be carefully evaluated for use with this test method.
This standard requires that the dye penetrant have good contrast with the opaque packaging material.
This standard does not purport to address all, if any, safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use.
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