GB/T 40623-2021Marine anti-static raised floor (English PDF)
船用防静电升高地板
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 11, 2021
Implementation date
May 1, 2022
Scope
GB/T 40623-2021 is the English-translated version of 船用防静电升高地板.
GB/T 40623-2021 is the Chinese national standard for anti-static raised floors installed on ships. It covers the classification, structure and marking of these floors, their technical requirements and test methods, the inspection rules, and marking, packaging, transport and storage.
It defines the raised floor as a floor built from a frame, removable panels and an anti-static veneer, and introduces the system resistance measured from the upper surface of the floor down to the support base.
Materials and tests are tied to national standards for structural steel, die-cast aluminium alloy and anti-static plywood and to the IMO fire test procedures for smoke, toxicity and surface flammability.
It applies to the design, manufacture and acceptance of such floors on ships and marine engineering structures. It was issued on 11 October 2021 and has applied since 1 May 2022.
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Document preview — GB/T 40623-2021
National Standard of the People's Republic of China
- ICS
- 47.020.50
- Classification
- U 25
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies the classification, structure and marking, technical requirements, test methods, inspection rules, marking and packaging of marine anti-static raised floors Transportation and storage.
This standard is applicable to the design, manufacture and acceptance of anti-static raised floors used in various ships and marine engineering.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 191 Packaging, storage and transportation pictorial signs
GB/T 700 carbon structural steel
GB/T 702 Hot-rolled steel bar size, shape, weight and allowable deviation
GB/T 709 Hot-rolled steel plate and steel strip size, shape, weight and allowable deviation
GB/T 6728 Cold-formed hollow steel for structure
GB/T 9867 Determination of wear resistance of vulcanized rubber or thermoplastic rubber (rotating roller abrasion machine method)
GB/T 15115 Die-cast aluminum alloy
GB/T 17395 Seamless steel pipe size, shape, weight and allowable deviation
CB/T 3951 Marine flame retardant rubber floor
SJ/T 11236 General Technical Specification for Anti-static Plywood
International Maritime Organization (IMO).2010 International Fire Test Procedure Application Rules Part 2: Smoke and Toxicity Test; Part 5 Sub. Surface material flammability test (surface material and deck base layer dressing test)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Anti-static raised floor
Floor constructed by floor frame, detachable floor and anti-static veneer.
Note: Hereinafter referred to as "raised floor".
3.2 Raised floor system resistance
The sum of the resistance from the upper surface of the raised floor to the floor support base.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 700Carbon structural steels
- GB/T 702Steel bars - Dimensions, shape, weight and tolerances
- GB/T 709Dimension, shape, weight and tolerance for hot-rolled steel strip, plate and sheet
- GB/T 6728Cold forming sectional steel for general structure
- GB/T 9867Rubber, vulcanized or thermoplastic -- Determination of abrasion resistance using a rotating cylindrical drum device
CB/T 3951
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Related Standards
GB/T 15115-2024 — Die casting aluminum alloys
GB/T 17395-2024 — Dimensions, shapes, masses and tolerances of steel tubes
GB/T 191-2025 — Graphical symbols marking for handling and storage of packages
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GB/T 40623-2021
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