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step-by-step procedureGB/T 8982: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 8982-2025 | English | 200 |
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Oxygen supplies for medicine and aircraft breathing
| |
| GB 8982-2009 | English | 155 |
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Oxygen supplies for medicine and aircraft breathing
| Valid |
| GB 8982-1998 | English | 519 |
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4 days
|
Oxygen supplies for medicine
| Obsolete |
| GB 8982-1988 | English | RFQ |
ASK
|
3 days
|
Gaseous oxygen supplies for medicine
| Obsolete |
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GB/T 8982-2025: Oxygen supplies for medicine and aircraft breathing
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT8982-2025
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.100.20
CCS G 86
Replacing GB/T 8982-2009
Oxygen Supplies for Medicine and Aircraft Breathing
Issued on: OCTOBER 31, 2025
Implemented on: MAY 1, 2026
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 6
2 Normative References... 6
3 Terms and Definitions... 7
4 Technical Requirements... 7
5 Batching, Sampling and Sampling Inspection... 7
6 Test Methods... 8
7 Inspection Rules... 13
8 Marking, Labeling and Accompanying Documents... 14
9 Packaging, Filling, Transportation and Storage... 15
10 Safety Information... 15
Oxygen Supplies for Medical and Aircraft Breathing
1 Scope
This document specifies the technical requirements for oxygen supplies for medical and aircraft
breathing, as well as the requirements for batching, sampling, inspection rules, marking,
labeling, accompanying documents, packaging, filling, transportation and storage. It describes
the methods for determining the oxygen and impurity contents in oxygen supplies for medical
and aircraft breathing and provides safety information for oxygen supplies for medical and
aircraft breathing.
This document applies to gaseous and liquid oxygen supplies for medical and aircraft breathing
produced by cryogenic separation of air.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB 190 Packing Symbol of Dangerous Goods
GB/T 3863 Industrial Oxygen
GB/T 5832.2 Gas Analysis - Determination of Moisture - Part 2.Dew Point Method
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods
GB/T 7144 Colored Cylinder Mark for Gases
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgement of
Limiting Values
GB 15258 General Rules for Preparation of Precautionary Label for Chemicals
GB/T 16483 Safety Data Sheet for Chemical Products - Content and Order of Sections
GB/T 16804 Precautionary Labels for Gas Cylinders
GB/T 28726 Gas Analysis - Gas Chromatograph with Helium Ionization Detector
GB/T 43306 Gas Analysis - Sampling Guidelines
3 Terms and Definitions
This document does not have terms or definitions that need to be defined.
4 Technical Requirements
4.1 The technical requirements for oxygen supplies for medical and aircraft breathing shall
comply with the provisions of Table 1.
4.2 No requirements are made regarding the moisture content or odor of liquid oxygen.
5 Batching, Sampling and Sampling Inspection
5.1 Batching
The oxygen supplies products for medical and aircraft breathing continuously and stably
produced on the same production line constitute a batch. The oxygen supplies for medical and
aircraft breathing packaged in cylinder bundles constitute a batch based on the quantity of
products from one cylinder bundle.
5.2 Sampling
It shall comply with the provisions of GB/T 43306.
5.3 Sampling Inspection
5.3.1 For oxygen supplies for medical and aircraft breathing packaged in cylinders (including
welded insulated cylinders), random sampling inspection shall be conducted in accordance with
the sampling quantities specified in Table 2.
5.3.2 The oxygen supplies products for medical and aircraft breathing packaged in cylinder
bundles shall be individually inspected as a whole for each bundle.
5.3.3 The oxygen supplies for medical and aircraft breathing packaged in mobile pressure
vessels shall be individually inspected.
5.3.4 For oxygen supplies for medical and aircraft breathing transported via pipelines, sampling
inspection shall be conducted every 4 hours, or the sampling frequency shall be agreed upon by
the supply-side and the demand-side.
6 Test Methods
WARNING---during the test, the exhaust gas shall be discharged outdoors to prevent its
accumulation indoors.
6.1 Determination of Oxygen Content
6.1.1 Paramagnetic oxygen analysis method
6.1.1.1 Principle
Oxygen molecules will be magnetized in a magnetic field, generating an additional magnetic
field that is in the same direction as the external magnetic field, exhibiting paramagnetism. A
paramagnetic oxygen analyzer typically contains a pair of nitrogen-filled glass spheres
(dumbbells), which are mounted between the two magnetic poles of the sensor’s enclosed
chamber. There is a reflecting mirror on the central axis of the dumbbells that reflects the light
beam emitted by the light source onto the photoelectric sensor. Oxygen in the gas to be tested
will be drawn into the magnetic field, which exerts an acting force on the spheres, causing them
to rotate. This changes the angle of the reflecting mirror, resulting in a change in the light
intensity received by the photoelectric sensor. To ensure that the photoelectric sensor receives
a strong light signal, the control system drives the electromagnetic coil of the dumbbells with
current, making them return to their original positions. The driving current is proportional to
the oxygen content; the oxygen content can be determined by determining the magnitude of the
driving current.
6.1.1.2 Test conditions
The following requirements shall be met.
---Temperature of operating environment. 5 C ~ 40 C;
---Relative humidity of operating environment. 20% ~ 85%;
---No electromagnetic fields affecting the normal operation of the instrument, no
interfering gases affecting the accuracy of the determination, and no strong vibrations;
---Power supply. AC voltage (220 22) V, frequency (50 0.5) Hz;
---Instrument earthing requirements. reliable earthing (earthing resistance 4 ).
6.1.1.3 Reagents or materials
6.1.1.3.1 Zero-point gas
The oxygen content in the zero-point gas shall be less than 0.01% of the instrument’s minimum
measuring range, with the residual gas being high-purity nitrogen.
6.1.1.3.2 Gas standard samples (or standard substances)
The oxygen content shall be 80% of the measuring range, with the residual gas being high-
purity nitrogen, and its expanded uncertainty shall not exceed 1%.
6.1.1.4 Instruments and equipment
6.1.1.4.1 Instrument requirements
Paramagnetic oxygen analyzer, with a measuring range of 98.00% ~ 100% (mole fraction). It
shall be verified or calibrated by a metrological verification institution and within its validity
period.
6.1.1.4.2 Indication error
The indication error of the analyzer shall not exceed 0.05%.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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