ASTM D3078

1.1 This test method covers the determination of gross leaks in flexible packaging containing a headspace gas. Test sensitivity is limited to 1 × 10⁻⁵ atm cm³/s (1 × 10⁻⁶ Pa m³/s) or even less sensitive as indicated in a recent interlaboratory test (reported in Section 12).

1.2 Small leaks may not be detected by this procedure. Viscoelastic effects on the products, or entrapped air, become significant and prevent passage through small openings. Positive pressure inside the pouch after the vacuum is drawn may force the product to plug small leaks. The size of the leak that can be detected is dependent upon the products contained, the nature of the packaging material, and the test parameters selected.

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

1.4 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.

2. Referenced Documents

E425 Definitions of Terms Related to Leak Testing
E515 Test Method for Leaks Using Bubble Emission Techniques
F98 Practices for Determining Hermeticity of Electron Devices by a Bubble Test

Index Terms

Container leakage; Heat-sealed packages; Leak testing--packaging applications/containers; Packing/packaging materials/systems; Performance--containers/packaging/shipping ; ICS Number Code 55.040

Citing ASTM Standards

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