GB/T 9900: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9900-2025 | English | RFQ |
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3 days [Need to translate]
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Rubber- or plastics-coated fabrics - Ventilation ducting
| Valid |
GB/T 9900-2025
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| GB/T 9900-2008 | English | 329 |
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3 days [Need to translate]
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Rubber-or plastics-coated fabrics -- Ventilation ducting
| Valid |
GB/T 9900-2008
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| GB/T 9900-1988 | English | 559 |
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4 days [Need to translate]
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Extractable ventilation rubber ducting of the fire retardant
| Obsolete |
GB/T 9900-1988
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Basic data | Standard ID | GB/T 9900-2025 (GB/T9900-2025) | | Description (Translated English) | Rubber- or plastics-coated fabrics - Ventilation ducting | | Sector / Industry | National Standard (Recommended) | | Date of Implementation | 2026-03-01 | | Older Standard (superseded by this standard) | GB/T 9900-2008 | GB/T 9900-2008: Rubber-or plastics-coated fabrics -- Ventilation ducting---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rubber-or plastics-coated fabrics. Ventilation ducting
ICS 59.080.40
G42
National Standards of People's Republic of China
Replacing GB/T 9900-1988
Rubber or plastic coated fabrics duct
Posted 2008-05-14
2008-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 9900-1988 "out of the fire retardant rubber duct", the former chemical industry standard HG/T 3325-1982
"Mine duct tape" also abolished.
This standard and GB/T 9900-1988 compared to the main changes are as follows.
--- With different names;
--- Different scope, increase the positive pressure duct requirements (see Chapter 1);
--- Increasing the physical and mechanical properties of the coated fabric requirements (this version 5.1.2);
--- Increasing the length of 30m and duct size and appearance inspection requirements of 50m (Excerpts 5.2.1 and 5.2.2);
--- Increasing the requirements and test methods 1600mm standard duct diameter to 1000mm (5.2.1 and Chapter 6 of this edition);
--- Increasing the duct seam strength requirements (this version 5.2.3).
Appendix A of this standard is a normative appendix.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Rubber and rubber products coated products Standardization Technical Committee Technical Committee (SAC/TC35/SC10)
Centralized.
This standard was drafted. Chengdu vision Composite Materials Co., Ltd., Jinan, Shandong Alliance Group Rubber Products Co., Ltd., Shenyang Rubber Rubber Group
Institute of glue.
Drafters of this standard. Yuan Ye, Zhang Quan, Deng Qing Long, Xu Weiqing, song books Yang, Li Sa, Tao.
This standard replaces the standards previously issued as follows.
--- GB/T 9900-1988.
Rubber or plastic coated fabrics duct
1 Scope
This standard specifies the rubber or plastic coated fabric duct classification, structure, technical requirements, test methods, inspection rules, packaging, marking
Chi, transportation and storage.
This standard applies to positive and negative pressure duct with rubber or plastic coated fabrics made of. Mainly used in mines, tunnels, hydraulic engineering, land
Rail and air defense projects.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement according to study
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 1222 spring steel
GB/T 3078 quality structural steel cold-drawn steel technical conditions
GB/T 10111 using random numbers dice random sampling method
GB/T 13489-2008 Determination of rubber-coated fabric flammability
Determination of GB/T 15335 duct leakage rate and windage
HG/T 2580 Rubber or plastic coated fabrics tensile strength and elongation at break measurement (HG/T 2580-2008,
ISO 1421.1998, IDT)
HG/T 2581 Rubber or plastic coated fabrics - Determination of tear resistance (HG/T 2581-1994, neq ISO 4674. 1977)
The third part of measuring HG/T 3050.3 rubber or plastic coated fabric roll characteristics. the method of measuring the thickness of
(HG/T 3050.3-2001, idt ISO 2286-3.1998)
Determination of HG/T 3052 Rubber or plastic coated fabrics - coating bond strength (HG/T 3052-2008, ISO 2411.
2000, IDT)
Category 3
3.1 divided according to their use.
--- Positive duct. for mine tunnels to Ventilator positive pressure given distance local ventilation;
--- Vacuum duct. for mine tunnels and other exhaust ventilation and dust.
3.2 according to their performance is divided into.
--- A class flame retardant anti-static duct. a flame retardant, antistatic properties;
--- Class B, flame-retardant duct. flame retardant.
4 Structure
4.1 positive pressure duct structure shown in Figure 1.
4.2 suction duct structure shown in Figure 2.
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