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Pressure differential: definition

Direct answer: The difference between the pressure inside a chamber or vessel and the pressure outside it. Engineering and regulatory analysis may depend on this value, not just the reported ATA.

This formal term definition is educational context and not a product-specific legal, regulatory, or engineering determination.

Editorial disclosure: Educational information only; not legal, medical, regulatory, or engineering advice. Published with the Standards Knowledge Center; last reviewed 2026-08-20.

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