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GB/T 20953-2007: Tractors and machinery for agriculture and forestry -- Determination of burning behavior of cab interior materials
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20953-2007 | English | 239 |
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Tractors and machinery for agriculture and forestry -- Determination of burning behavior of cab interior materials
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GB/T 20953-2007
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Basic data | Standard ID | GB/T 20953-2007 (GB/T20953-2007) | | Description (Translated English) | Tractors and machinery for agriculture and forestry -- Determination of burning behavior of cab interior materials | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | T69 | | Classification of International Standard | 65.060.10 | | Word Count Estimation | 9,957 | | Date of Issue | 2007-06-25 | | Date of Implementation | 2007-11-01 | | Adopted Standard | ISO 3795-1989, MOD | | Regulation (derived from) | National Standard Announcement 2007 No.6 (Total No.106) (National-Standard-Commission) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies test methods and machinery for agriculture and forestry cab interior materials used horizontal burning characteristics. There are many differences between the provisions of this standard and the exact conditions of the test face, this standard does not apply to the evaluation of various interior view of the actual situation of the cab interior parts (ignition sources and other parts of the application site, fabric Dan methods, , conditions of use) All real cab material combustion characteristics. | GB/T 20953-2007: Tractors and machinery for agriculture and forestry -- Determination of burning behavior of cab interior materials
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Tractors and machinery for agriculture and forestry. Determination of burning behavior of cab interior materials
ICS 65.060.10
T69
National Standards of People's Republic of China
Tractors and machinery for agriculture and forestry
Determination of cab interior material combustion characteristics
(ISO 3795. 1989, Roadvehicles, andtractorsandmachineryforagricultureand
forestry-Determinationofburningbehaviourofinteriormaterials, MOD)
Posted 2007-06-25
2007-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This revised standard adopts ISO 3795. 1989 "Road vehicles, agricultural and forestry tractors and machinery and interior materials combustion characteristics test
Fixed "(in English).
This standard and ISO 3795. 1989 as compared to the major technical changes as follows.
--- Standard name from the original "road vehicles, agricultural and forestry tractors and machinery and interior materials combustion characteristics determination" changed
The "determination and machinery for agriculture and forestry cab interior material combustion characteristics."
--- Modify the scope of application. This standard applies to the determination of agricultural and forestry tractors and machinery cab interior material combustion characteristics.
--- Increasing the flame retardant characteristics of interior materials requirements.
--- Burn rate "B" to "Vp."
For ease of use, this standard made the following editorial changes.
--- "This International Standard" be replaced by "this standard";
"." --- With a decimal point instead of a comma as the decimal point, "";
--- Deleted international standards foreword.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee of the tractor.
This standard was drafted. Luoyang Tractor Research Institute, National Tractor Quality Supervision and Inspection Center.
The main drafters of this standard. Qi Liang, Liu Lingwen high waves.
This standard was first formulated.
Tractors and machinery for agriculture and forestry
Determination of cab interior material combustion characteristics
1 Scope
This standard specifies the test methods and machinery for agriculture and forestry cab with a level of interior materials combustion characteristics.
Given the actual situation in various parts cab interior (part application site, layout method, conditions of use, ignition source, etc.) and this standard Regulation
There are many differences between the test conditions given precise, this standard does not apply to evaluate the interior materials for all real cab combustion characteristics.
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 are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 1804 General tolerances for linear and angular dimensions without individual tolerance tolerance (GB/T 1804-2000, eqv ISO 2768-1. 1989)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
This distance ratio used time measured according to the standards prescribed burning and burning distance. Expressed in units of mm/min.
3.2
Several layers of similar or different materials, its surface by different methods between sintering, bonding, cladding, welding, etc. so closely linked to overall
material.
If different materials are joined together intermittently (for example sewing, high-frequency welding, riveting), such materials shall be deemed not laminated composites.
3.3
Parts for assembly in car occupant that side.
4 methods of operation
The sample holder horizontally on a U-shaped bracket, subject to the provisions in the combustion chamber to ignite a small flame small energy 15s, the flame from the specimen
Ignited by side. Test to determine whether the flame goes out, or when off, and the sample combustion and combustion of the distance from the elapsed time.
5 Test equipment and apparatus
5.1 combustion chamber (see FIG. 1) with a stainless steel plate, dimensions shown in Figure 2. The front portion of the combustion chamber is provided with a fire-resistant glass viewing window, the window can be
Piece front cover can also be made into a small viewing window.
Ventilation holes at the bottom of the combustion chamber, surrounded by walls near the top of the ventilation slots. The entire combustion chamber by the four 10mm high leg supported.
One end of the combustion chamber can be equipped with a sample holder placed in closable openings, the other end to set up a small door, there are gas pipes through the door
Holes. The bottom of the combustion chamber is provided for the collection of a molten drip collecting tray (see Figure 3). This plate is placed between the two rows of ventilation holes
Without affecting the ventilation vents.
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