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AS/NZS ISO 22991:2025 Gas cylinders - Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) - Design and construction
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AS/NZS ISO 22991:2025 identically adopts ISO 22991:2004, which specifies requirements for transportable refillable welded steel liquefied petroleum gas (LPG) cylinders 150 l or less, exposed to ambient temperatures