GB/T 12022-2025 Industrial sulphur hexafluoride English, Anglais, Englisch, Inglés, えいご
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ICS 23.020.99
CCS H 57
National Standard of the People's Republic of China
GB/T 12022-2025
Replaces GB/T 12022-2014
Industrial sulphur hexafluoride
Issue date: 2025-08-29 Implementation date: 2026-03-01
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 Sampling
6 Test Methods
7 Inspection Rules
8 Marking, Packaging, Filling, Transportation, Storage, and Safety Information
Appendix A (Informative) Determination of Oxygen + Nitrogen and Carbon Tetrafluoride Content in Sulfur Hexafluoride
Industrial Sulfur Hexafluoride
1 Scope
This document specifies the technical requirements, sampling, test methods, inspection rules, marking, packaging, filling, transportation, and storage requirements for industrial sulfur hexafluoride. It describes the test methods for industrial sulfur hexafluoride and provides safety information for industrial sulfur hexafluoride.
This document applies to industrial sulfur hexafluoride prepared and purified from fluorine and sulfur as raw materials.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, subsequent amendments (excluding) or revisions to these documents do not apply. For undated references, the latest edition of the document (including any amendments) applies.
GB 190 Dangerous goods packaging marks
GB/T 601 Chemical reagents - Preparation of standard volumetric solutions
GB/T 603 Chemical reagents - Preparation of test solutions and products
GB/T 3863 Industrial oxygen
GB/T 4844 Pure helium, high-purity helium, and ultra-pure helium
GB/T 5099 (all parts) seamless steel gas cylinders
GB/T 5832.1 Gas analysis - Determination of trace water - Part 1: Electrolytic method
GB/T 6682 Specification and test methods for water for analytical laboratory use
GB/T 7144 Color marking for gas cylinders
GB/T 8170 Rules for rounding off numerical values and indication of limiting values
GB/T 11640 Seamless aluminum alloy gas cylinders
GB/T 14193 Regulations for filling liquefied gas cylinders
GB 15258 General rules for preparation of chemical safety labels
GB/T 16804 Warning labels for gas cylinders
GB/T 28726 Gas analysis - Helium ionization gas chromatography
GB/T 33145 Large-volume seamless steel gas cylinders
GB/T 43306 Gas analysis - Sampling guidelines
TSG R0005 Technical supervision regulation on safety for mobile pressure vessels
TSG 23 Technical regulation on safety for gas cylinders
3 Terms and Definitions
There are no terms and definitions that need to be defined in this document.
4 Technical Requirements
The technical requirements for sulfur hexafluoride shall comply with the provisions of Table 1.
5. Sampling
Conduct sampling in accordance with GB/T 43306.
6. Test Methods
Warning— Some test procedures specified in this document may involve hazardous conditions. Users shall take appropriate safety and health precautions.
6.1 General Requirements
Unless otherwise specified, analytical-grade reagents and Grade 3 water (as per GB/T 6682) shall be used in analysis.
Standard solutions shall be prepared per GB/T 601.
Test solutions and preparations shall be prepared per GB/T 603.
6.2 Sulfur Hexafluoride (SF₆) Purity
The purity of sulfur hexafluoride shall be calculated using Equation (1):
6.3 Determination of Oxygen + Nitrogen, Carbon Tetrafluoride, Hexafluoroethane, and Octfluoropropane
6.3.1 Test Method
6.3.1.1 Principle
The contents of oxygen + nitrogen (O₂ + N₂), carbon tetrafluoride (CF₄), hexafluoroethane (C₂F₆), and octfluoropropane (C₃F₈) in sulfur hexafluoride (SF₆) shall be determined using cutting injection as per GB/T 28726.
6.3.1.2 Pre-separation Columns
Pre-separation Column I:
Material: Stainless steel tube
Dimensions: ~2 m length × ~3 mm inner diameter
Pre-separation Column II:
Material: Stainless steel tube
Dimensions: ~5 m length × ~3 mm inner diameter
packing:** Ethylbenzene-divinylbenzene copolymer with 0.18–0.25 mm particle size, or equivalent pre-separation column.
6.3.1.3 Analytical Columns
