T/SA 31-2025 Active Group standards

T/SA 31-2025 Quality requirements for portable oxygen cylinders

Publish Date: 2025-12-26 Implement Date: 2025-12-26 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SA 31-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Orthopaedic surgery, orthopaedic instruments

ICS Name: Pressure vessels, gas cylinders

Publish Date: 2025-12-26

Implement Date: 2025-12-26

Scope

The standard specifies the full life cycle quality requirements for rechargeable portable oxygen cylinders made of carbon steel or aluminum alloy with a nominal volume of 0.5–10 L and a nominal working pressure of 10–20 MPa. The core technical content includes: classification and standard model preparation according to material, use, and volume; clear general requirements for appearance, size, and materials; standards for volume and filling deviations; safety performance requirements for pressure resistance, gas tightness, impact resistance, and temperature resistance; clear indicators for flow regulation, pressure display, and safety protection; and oxygen purity requirements divided into medical and non-medical categories. It also covers testing methods, factory and type inspection rules, as well as marking, packaging, transportation, storage, and maintenance and use requirements.