GB/T 8982-2025 Oxygen supplies for medicine and aircraft breathing English, Anglais, Englisch, Inglés, えいご
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ICS 13.220.10
CCS H 57
National Standard of the People's Republic of China
GB/T 8982-2025
Replaces GB/T 8982-2009
Oxygen supplies for medicine and aircraft breathing
医用及航空呼吸用氧
Issue date: 2025-10-31 Implementation date: 2026-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
5 Batching, Sampling, and Sampling
6 Test Methods
7 Inspection Rules
8 Marking, Labeling, and Accompanying Documents
References
1 Scope
This document specifies the technical requirements, batching, sampling, inspection rules, markings, labels, accompanying documents, packaging, filling, transportation, and storage for medical oxygen and aviation breathing oxygen. It describes the test methods for determining the oxygen content and impurity content in medical oxygen and aviation breathing oxygen, and provides safety information for these oxygen types.
This document applies to medical oxygen and aviation breathing oxygen, in both gaseous and liquid forms, produced by cryogenic air separation.
2 Normative References
The contents of the following documents are incorporated into this document as essential clauses through normative reference. For dated references, only the version cited applies; for undated references, the latest version (including all amendments) applies to this document.
GB 190 Hazardous Goods Packaging Markings
GB/T 3863 Industrial Oxygen
GB/T 5832.2 Gas Analysis — Determination of Trace Water Content — Part 2: Dew Point Method
GB/T 6682 Water for Analytical Laboratory Use — Specification and Test Methods
GB/T 7144 Color Markings for Gas Cylinders
GB/T 8170 Rules for Rounding Numerical Values and Representation and Judgment of Limit Values
GB 15258 Regulations for Writing Chemical Safety Labels
GB/T 16483 Chemical Safety Data Sheets — Content and Sequence of Items
GB/T 16804 Warning Labels for Cylinders
GB/T 28726 Gas Analysis — Helium Ionization Gas Chromatography
GB/T 43306 Gas Analysis — Sampling Guidelines
3 Terms and Definitions
This document does not require the definition of any terms.
4 Technical Requirements
4.1 The technical requirements for medical oxygen and aviation breathing oxygen shall comply with the provisions of Table 1.
4.2 No requirements are specified for the water content and odor of liquid oxygen.
Table 1 Technical Requirements
5 Batching, Sampling, and Sampling
5.1 Batching
A batch of medical oxygen and aviation breathing oxygen products shall be continuously and stably produced on the same production line. A bundle of gas cylinders containing medical and aviation breathing oxygen shall be considered as one batch.
5.2 Sampling
Shall comply with GB/T 43306.
5.3 Sampling
5.3.1 For medical oxygen and aviation breathing oxygen in cylinders (including vacuum-insulated cylinders), sampling inspection shall be conducted randomly according to the sampling quantities specified in Table 2.
Table 2 Sampling Inspection Table for Medical Oxygen and Aviation Breathing Oxygen in Cylinders (Including Vacuum-Insulated Cylinders)
6 Test Methods
Warning — During testing, the tail gas shall be vented outdoors to prevent its accumulation indoors.
6.1 Determination of Oxygen Content
6.1.1 Paramagnetic Oxygen Analysis
6.1.1.1 Principle
Oxygen molecules are magnetized in a magnetic field, generating an additional magnetic field in the same direction as the external field, exhibiting paramagnetism. A paramagnetic oxygen analyzer typically contains a pair of nitrogen-filled glass spheres (dumbbells) mounted between the poles of a sensor's sealed chamber. A mirror is mounted on the central axis of the dumbbells, reflecting a light beam from the source onto a photosensor. Oxygen in the sample gas is drawn into the magnetic field, where the field exerts a force on the spheres, causing the dumbbells to rotate. This rotation changes the angle of the mirror, altering the light intensity received by the photosensor. To maintain a strong light signal on the photosensor, the control system drives the electromagnetic coil of the dumbbells with a current to restore them to their original position. The driving current is proportional to the oxygen content, and the oxygen content is determined by measuring the magnitude of this current.
7 Inspection Rules
7.1 Numerical rounding shall be performed using the rounding value comparison method as specified in GB/T 8170.
7.2 For medical oxygen and aviation breathing oxygen products in cylinders (including vacuum-insulated cylinders), if the test results for any item do not meet the requirements of Chapter 4, double the sampling shall be conducted from the same batch for retesting. If all indicators comply with the requirements of Chapter 4, the entire batch shall be deemed qualified except for the unqualified cylinder. If any item still fails to meet the requirements of Chapter 4, the entire batch shall be deemed unqualified.
7.3 For pipeline-delivered medical oxygen and aviation breathing oxygen products, if all test results comply with the requirements of Chapter 4, the products delivered during the sampling period shall be deemed qualified. If any test result does not meet the requirements of Chapter 4, the products delivered during the sampling period shall be deemed unqualified.
7.4 Medical oxygen and aviation breathing oxygen products in mobile pressure vessels shall be inspected individually. Products in cylinder bundles shall be inspected as one unit per bundle. If all test results comply with the requirements of Chapter 4, the contents of the packaging container shall be deemed qualified. If any test result does not meet the requirements of Chapter 4, the contents of the packaging container shall be deemed unqualified.
8 Marking, Labeling, and Accompanying Documents
8.1 Marking
