This standard specifies the method for determining the surface burning time of textile fabrics. This standard applies to textile fabrics with a pile surface (such as pile, loop, tufted or similar surface). GB/T 8745-2001 Combustion performance of textiles Determination of surface burning time of textile fabrics GB/T8745-2001 Standard download decompression password: www.bzxz.net

IcS 59. C80. 3C
National Standard of the People's Republic of China
GB/T 8745—2001
eqyISo 10047:1993
Textiles
Burning behaviour
Determination of surface burning time of fabrics2001-0226 Issued
2001:09-01 Implementation
Gutai Quality and Technical Supervision Bureau Issued
GB/T:8745--2001
This standard is equivalent to the use of Figure 13, Standard 10C47:2093 Textile Products GH/37151968 Woven surface burning performance is determined by the determination of 3. The name, chapter arrangement and some technical contents of the standard have been revised. The main technical contents are as follows: 1. The name of the standard is "Fire performance of textile fabrics" and "carbon/carbon mixed gas" has been added. The humidity range has been changed to "5%~8 times". 4. The distance from the "igniter end to the test fiber holder" has been changed to 7mm, and the distance from the "igniter end to the test fiber holder" has been changed to 15mm. 5. The flame has been turned on the same level. 6. The Appendix and Appendix B have been changed to "Standard Appendix", and the "Introduction" in the original standard has been removed. This standard was published in 1939. Revised in 3001. This standard replaces GB/574-1S88 from the date of implementation. The appendix A and B of this standard are the appendix of this standard: This standard is proposed by the Planning and Development Department of the National Textile Industry Bureau. This standard is drafted by the National Textile Industry Standardization Technical Committee Basic Standard Division Technical Committee: This standard is drafted by: Textile Industry Standardization Research Institute, Beijing Textile Industry Standardization Bureau, Zhao Biren, Price Bridge, Sun Chao. T:1T8745-291
IS Foreword
S International Organization for Standardization (ISO) is a joint body of the International Organization for Standardization (ISO) for the establishment of international standards. The work of the International Standard (ISO) Technical Committee is completed. If a member of the technical committee has an interest in the technical committee, he or she has the right to represent the committee. If a member of the international organization is willing to collect the information, he or she can contact the technical committee in this way.
Our products contain seagrass and are approved by the international standard and are marked with the value of the change. They must be distributed to the evaluation members for voting: the standard of a country cup must reach at least 75% of the votes. International Standard ISU117 [5T center SXSC1! Textiles and textile products heat resistance technical committee proposed 3
1 Scope
National Standard of the People's Republic of China
Textiles Burning Performance
Determination of Fabric Surface Burning Radiation
Textles-Bnrning heliavioar—lletermination nfsurface: tumning menf fabrles This standard specifies the number of organizations and the control time before the specified flow GB/T 87452001
eqVIN10C47.1993
GT97:51938
This standard is applicable to the surface of the work with sound effects, wool, tufted feeling and other types of clothing. 2 Scope
Six standards are set in June.
2.1 Decaying combustion surlacebl.1
Only the surface of a material is released
2.2 Surface burning time au:faceburninstim Under specified conditions, the time required for the velvet of the fabric to burn to a specified distance. 3 Corridor
Under the test conditions, ignite the velvet surface of the dry sample vertically near the top, and then extend the fire to the surface of the material downward until the number of marks is indicated: the fire on the charcoal surface must stop at the bottom and reach the top, and the product can be proved to be soft and soluble!
1 Health and safety of test personnel
The burning of textiles may contain gases that may affect the health of test personnel. Appropriate measures should be taken after the test to ensure that the required test conditions are met.
5 Equipment and materials
5.1 Composition of test equipment
The smoke produced by burning is isolating. The material composition during the test should not be affected by smoke erosion and should be easy to clean. 5.2 Sample clamp The test device is about 15\m long, sm wide and 5mm thick (Figures 1 and 3 are made of stainless steel so that the exposed surface of the test device is 12mr: × mm. There is a marking line on the holder. It is located 75mm below the ignition point. bzxz.net
Approved by the National Quality and Epidemic Prevention and Technical Supervision Bureau on February 26, 2007, implemented on 2001-C9-01
5.3 Integrated igniter
Glt/T 8745--2001
General
$Chinese and Western
Figure 1 shows the effect of the speed of the ignition device on the performance of the ignition device: The design and performance of the ignition device will affect the formation of the fire trap, which is shown in the following table. 5.4 Gas
Industrial use butane or propane or butane/propane mixture. 5.5 Timing device
The design of the device shall be used to control and test the ignition time of the sample (1. ± 1). 5.6
Description of the lubrication device:
5.7 The oven
shall be able to maintain 105T 5.8 The drying temperature of the test sample should be 200℃ and the test frequency should be raised. The air flow rate of the test room should be 23℃ and the test period should not be affected by the combustion equipment. The test room should have enough space to prevent the reduction of oxygen concentration from affecting the test. 7 Samples and humidity conditioning CB: T8/452001 The size of each sample is 5mmX75mm. The fabric size is 73mr. The whole width is taken for testing. 7.2 The number of samples of each test sample is cut to 1.3 fabric uniform state
period test bar does not appear long surface burning, can be cut for the situation, then ask the relevant change to make a promise, this time the sample to the standard \ report Wu"
7.4 + state
test rotten [certification +2 stop dry explosion not less than 1, and then under the solid container to cool mir. After the film one change from ten leaks to the city stock: in: m open test: 8 test step penalty
8.1 leaks * 10C-3 and shoots the humidity condensation for 15%~8% of the atmosphere The following items are tested: ? Ignition is carried out by heating the bottom of the coil 2n\. Under the dark light, place the igniter vertically and place the flame under the cover. Adjust the flame height so that the igniter is pre-sold to the end of the fluorescent flame. The distance is mm + 2mt8.3 Place the ignition belt vertically or the surface of the sample holder or when there is a distance of 1:m between the top end of the igniter and the surface of the sample holder, in order to make the ignition start mark, mark the position of the igniter and the sample holder, and this position must be changed. 8.4 Cool the test mold holder so that it is within the specified temperature difference with the ambient temperature, clamp the sample in the holder, if the direction of the ignition belt is the same as the direction of the change, the surface hair can be pressed down. 8.5 Use the brushing device described above to brush the surface of the sample once, and then brush it again. 8.6 Place the holder containing the sample in the position determined in 8.3: 8.7 When the igniter is ignited by the stopwatch, the flame is turned off for more than 1 minute, and the sample is dried again. Record whether the flame is extinguished by the stopwatch. If it is delayed, measure the time to reach the mark 75m below the ignition point.
8.9 For other test columns, during the test, the sample holder should be cooled (see 3.4), cleaned and dried. 8.10 If only one sample is found to be ignited, another sample should be tested. 9 Test report
The test report should include the following contents:
a) The test is carried out in accordance with this standard. If there are any changes, please indicate the details. b) The width of the sample:
c) If the width of the sample is less than 75 mm, the width should be indicated. d) The state of the sample: "original" or "after cleaning the sample used". e) Whether the sample is ignited: Yes. Flame spread: [) Whether the flame on the surface of the filter can be extinguished when it reaches the marked area.The number of samples to reach the calibration load; the time for the surface of the sample to burn the carbon grade of the fabric, the direction of the fabric, the minimum burning time (if the degree is %. After the new test, only one sample burns to the Darling record, the record is the table burning time); if the table burns to the marked line during the ignition period, then the table burning time is also 15: the test temperature and relative humidity are not consistent during the test period and the test method. The test results are not for assessing the hazards suffered by the fabric in an actual fire. 41 Description GB/T 87/2520C1 Appendix A (Standard Appendix) Description of the igniter and foil structure The igniter can provide appropriate fire training, and the firearm can negotiate and adjust the time schedule. A2 Structure
The structure of the igniter is as shown in A1), it consists of two parts: A2.1 Gas nozzle
Gas nozzle: see A16). The nozzle is usually 0.19m-0.C2m. The nozzle is drilled from both ends and all the corners are polished.
A2.2 Ignitor tube
The igniter needs to be composed of the following parts: a) Air chamber:
b) Mixing zone with gas
) Diffusion zone;
Gas outlet:
In the air chamber, the igniter tube has four air inlets with a diameter of m, and the front part is connected to the end of the nozzle and the expansion zone as shown in the figure. The inner diameter of the igniter hole is 1.7 and the inner diameter of the outlet is 3.A2.3 Fire start stabilizer
The fire will be set as shown in 1c,
and the body sense adjustment
) Gas bite sound
Ignition device
1.) Gas igniter first specification
Avoid A1 or body igniter
Text high medical
Flame fast setter
G8745—2001
: Ignition tube
Figure A1 (end)
Appendix B
1 standard increase or decrease record)
Ground communication 9
This appendix has been equipped with a shaving machine, and the test table has been solidified before the burning time to make the analysis of the actual surface accurate. 2 Brushing device
B2.1 Brushing device (see Figure B1) includes a station and a pull-able trolley on it, which runs on the parallel guide rails on the upper edge of the suction bottom plate, and the brush is half-pinned and can be placed on the trolley behind the plate, with a pressure of 1.5-3.3N. D2.2 Suitable for underground installation, including a row of non-carved, flexible, tight diameter C, 41m long 1smz, with a root shadow, 2m with 4, which can be used to store the fiber stiffness. 2.3 When the dramatic exploration is carried out, there is a hook at the top of the movable trolley: used to fix the sample holder. B2. After the sample holder containing the sample is placed on the trolley, the rear part of the space is pushed up and the sample is drawn below. Then pull the trolley forward by hand until the sample passes the brush.
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