GB/T 48283-2026Leak test method for spacecraft (English PDF)

GB/T 48283-2026 is the English-translated version of 航天器检漏试验方法.

Leak testing of spacecraft is the topic of this standard, which sets out test methods for detecting leakage. Tightness matters for pressurized structures, propulsion and fluid systems, and sealed equipment in space vehicles, so the document supports the verification of hardware before launch. Spacecraft manufacturers, subsystem suppliers, integration and test teams, leak detection equipment makers and quality assurance engineers are the natural users.

It is a recommended national standard, issued on 28 September 2026. It takes effect on 1 January 2027, earlier than most documents released the same day. No earlier edition is recorded, and use is voluntary unless required by a program specification or contract. Organizations involved in the Chinese space industry supply chain, or those who compare aerospace test practice between countries, can read it to learn how leak detection is organized under the national standard system.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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