Submerge the sealed package completely. Ensure it is fully immersed and free of external air bubbles.
Note: None of these are direct substitutes; selection depends on your package material and sensitivity requirement. The release of ASTM D3078-2021 was not a minor editorial update. It brought clarity, alignment with ISO methods, and practical improvements that reduce false failures and improve reproducibility across laboratories.
If you are searching for , you likely need the official document for compliance, audit preparation, or implementing a leak test protocol. This article will explain everything you need to know: what the standard covers, the key changes in the 2021 version, how to legally obtain the PDF, and how to apply it in real-world testing. What is ASTM D3078? ASTM D3078 is titled: "Standard Test Method for Determination of Leaks in Flexible Packaging by Bubble Emission."
Hold the vacuum for the specified dwell time (typically 30–60 seconds, but can be longer per internal protocols).
Apply vacuum gradually to a predefined level (e.g., 25 inHg for most flexible packages) while observing the package.