This standard specifies the general requirements and physical tests for fire-resistant hoses used to transport gasoline and diesel at low pressure, and stipulates that the working pressure of hoses with a nominal inner diameter of 10mm or less shall not exceed 0.34MPa; for hoses with a nominal inner diameter greater than 10mm, it shall not exceed 0.25MPa. This standard applies to hoses used in small boats with fixed engines installed in ships and a length of no more than 24m. GB/T 14652.1-2001 Fire-resistant fuel hose for small boats GB/T14652.1-2001 Standard download decompression password: www.bzxz.net

ICS47.080
National Standard of the People's Republic of China
GB/T14652.1—2001
idtIS07840:1994
Fire-resistant fuel hose
Small craft--Fire-resistant fuel hoses2001-12-13 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2002-08-01 Implementation
CB/T14652.1—2001
This standard is a revision of GB/T11652—19936 Small dirty fire hose 3. This standard is equivalent to 1S07840:1994 Small craft fire-resistant soft belt. From the date of implementation of this standard, it will replace the "fire-resistant flame retardant hose" part in CB/T14652-1993. Appendix A and Appendix B of this standard are the appendices of the standard. This standard is proposed by China Shipbuilding Industry Corporation. This standard is under the jurisdiction of the 708th Research Institute of China Shipbuilding Industry. The drafting unit of this standard: the 708th Research Institute of China Shipbuilding Industry. The main drafters of this standard: Lin Dehui, Li Zhensheng, Wang Zheng. This standard was first issued in October 1993. GB/T14652.1—2001
ISO former
The International Organization for Standardization (ISO) is a worldwide federation of national standard organizations (ISO member groups). The formulation of international standards is carried out by each ISC technical committee. Every member group interested in the project undertaken by a technical committee has the right to participate in the technical committee. International organizations, both governmental and non-governmental, that have relations with ISO may also participate in this work. ISO works closely with the International Electrotechnical Commission (IEC) in the standardization of electrotechnical technology. The draft international standards adopted by the technical committees should be sent to the member groups for voting before being approved by the ISO Council as international standards. According to the ISO standard-setting procedures, an international standard should have at least 75% of the votes of the member groups to become an international standard. This international standard ISO7840:1994 was developed by ISO/TC188\Small boats\Technical Committee. Appendix A and Appendix B of this international standard are standard Appendix 1 Model
National Standard of the People's Republic of China
Snall cruft--Fire-resistant fuel hose
Snall cruft--Fire-resistant fuel hose
Snall cruft--Fire-resistant fuel hose Tuel hases GE:T,14652.1--2001
id1 150 7840: 1994
This standard specifies the general requirements and physical tests for the fire-resistant hose for conveying gasoline and fuel oil under low pressure, and for hoses with a nominal inner diameter of m and below, the standard deviation shall not exceed 0.34MPa; for hoses with a nominal inner diameter greater than 10mm, the standard deviation shall not exceed 1.MPa. This standard shall be used for hoses with a fixed engine H installed in the boat. m The relatively large hose used for small boats, 4: = Technical requirements for fire-resistant treatment are shown in (R.1462.22 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in the standard. When the standard is published, the versions shown are valid. All standards will be revised to make the parties who use the following standards aware of the new version of the product performance: 17 Priority number Priority number series
s: Rubber and plastic hoses for industrial purposes and their tolerances and length tolerances 54 Rubber, plastic hoses and hose assemblies compression test 13117:19 Determination of the effect of environmental rubber liquid on the vacuum performance of rubber and whole hoses and hose assemblies 1SU r2:13:
IS)326:199 Rubber hose static ozone stove performance assessment 1S)0:1 Fuel systems and fixed fuel tanks permanently installed in small boats 3 General requirements
Non-standard soft kidneys should be installed on the surface, without pores, chemical impurities and other defects. Full name internal price agent 5) [07 requirements. The money section should meet the requirements of the service test in Chapter 5 to prove its suitability for use in the equipment. H: The standard of the pipe meets the requirements of the production.
Nominal inner diameter
Connect S: R: Department - Table; Example: Part of the common except inner diameter, the total tolerance is created in Table 1 non-new design will be recognized: the current room 5 finished soft bamboo shoots physical test
5.1 Dry acid joint force
With a relatively large pipe residual root pipe or test piece according to 5) 1 in the established test glass (in the standard test case temperature, tons of learning in the whole design, the whole cold water injection soft replacement or test piece · connection 【S(1 (2 specification case benefit number practice test piece training operation was layered square our public capital within m below the hose, mainly read M: public market teaching! The relatively small shop is "P
People's Republic of China Runjia Quality Supervision, Inspection and Quarantine General 73011 - 12 73 Approved for implementation in 2007-0801
Nominal inner diameter
5.2 Vacuum test
GB/T14652.1—2001
Table 1 Tolerance of nominal inner diameter
1012. 516202531. 545063
Perform this test in accordance with method A specified in ISO 7233 and the test conditions specified in Table 2. The test time should be 60 5. The diameter of the ball used is 0. &d. Table 2 Pressure conditions for vacuum performance testbzxz.net
Nominal inner diameter
210-- 25
5. 3 Volume change in liquid C
Determine the volume change of the hose (tube and expansion layer) according to the method specified in IS01317. Place the test piece in liquid C for 70 h=2 at standard laboratory temperature (23°C). h. ±1.25
Pressure lower than the ambient pressure
No test required
If the hose is made of a single compound (with or without light-reinforced materials), its volume expansion in liquid C should not exceed 3%. For hoses with an inner layer of fuel-resistant material and an outer sheath of another material mainly used for weatherproofing and oxygen-resistant, the volume increase in liquid C should not exceed 0% for the inner layer and 120% for the outer sheath. 5.4 Mass reduction in liquid C
The reduction in mass of the inner layer shall be determined by the method specified in ISO1817, and the test piece shall be treated as specified in 1. The reduction in mass of the inner layer shall not exceed 8% of the original mass of the test piece. Note 2: A mass reduction of 8% is equivalent to a volume reduction of approximately %. 5.5 For fire hoses, the test specimens shall be tested according to the method specified in Appendix A (Appendix to the standard) 5.6 Ozone effect
The hose is tested according to the method 1 specified in ISO7326 and observed with a 2x magnifying glass. No visible cracks should appear on the sample. 5.7 Fuel penetration
The permeability test is carried out. When tested according to the method described in Appendix 1 (Appendix of the standard) or an equivalent method, the hose is classified as follows: Grade 1 The permeability of the hose is less than or equal to 4 g/(m·h) Grade 2-The permeability of the hose is greater than 4/(m2h) but less than or equal to 12 g/(m·h). 6 Marking and marking
6.1 Marking
The following designation shall be used:
"A\ for marking fire-resistant fuel hoses
\1* for marking fuel hoses with a fuel permeability less than or equal to 4 g/:n·h) \2\ for marking fuel hoses with a fuel solubility greater than 4 g/(m·h) but less than or equal to 12 g/(m·1) 6.2 Marking
In order to comply with this standard, the hose shall be marked with the following marks at least every 0.3: the name or trademark of the manufacturer or supplier: year of manufacture (one digit);
--- GB/T [4652. [A|| or GB/T 14652.1-A2| as specified in 6.[. The letter and number of the mark shall be at least mril, and the mark shall withstand washing with ordinary detergents. The attached content shall be included in the mark.
A1 Principles and requirements
GB/T14652. 1--2001
Appendix A
(Standard Appendix)
Fire resistance test
A hose filled with heptane is subjected to flame. After the fuel in the pan is ignited, the hose is subjected to flame for 2.5 minutes and there should be no leakage. A2 Sampling
At least 3 hose specimens shall be tested in accordance with the European standard. 43 Equipment
The test should be carried out in a ventilated sheltered place indoors at a temperature of 20C=5℃. The test equipment should meet the requirements shown in Figure A1. The fuel tray should be a square tray with a vertical periphery of 3.j0mm×350mm. Commercial hygroscopic hydrocarbons prepared by distillation at a temperature of 80～110℃ are used as fuel. The temperature of the fuel and water should be 20±2. Size uin
-Discharge risk
Fuel pipe, moss
The end of the test stock
No axial force installation
Equipped with 0.5E water and 1. Flow alkane booster tray
Figure A1 Fire resistance test equipment
44 Test method
44.1 Preparation
Fuel test
Install the test equipment according to Figure A1. No test object is installed, because even if there is no ventilation in the test room, it will affect the flame. Therefore, the position of the fuel tray should be adjusted to make the flame as thin as possible. The hose and one end should be connected to the test equipment according to the provisions of 6.4 of ISO) 10088:1992 (Figure A1). 44.2 Test
Open the fuel tank valve and let the fuel flow into the hose to ensure that there is no residual air in the hose. Adjust the fuel level to 900 mm. 0.5% water and 1% ethanol are poured into the fuel tray and the ethanol is ignited. The fuel tray should be placed so that its two sides are parallel to the test object. Make sure that the specified flame is maintained during the test until the flame melts one of the connections of the hose. Allow the ethanol to burn and note the time for leakage to occur. The test is terminated when leakage occurs or the leakage lasts for more than 2.5 minutes. If the flame is extremely unstable during the test, and if the test hose is not fully exposed to the test conditions for at least 75 minutes, or if the difference between the full leakage time and the determined deep leakage time average value is greater than 306 in any test, two other test hoses should be tested. After each test, the combustion line and the bottom of the fuel tray are cooled to the ambient temperature before installing a new sample and refilling with water and fuel. Note: Leakage can cause fire and burn waste fuel. This test should be carried out in a non-flammable environment with personal protective equipment and fire-fighting equipment.
Appendix B
(Standard Appendix)
Fuel Permeation Test
FBasic Requirements
First, the hose section to be tested shall be exposed to the fuel for 7 days. Then, the hose section to be tested shall be weighed for 15 consecutive days at a period of 24 hours to determine the volume loss caused by the permeation + or until the maximum loss is measured. B2 Sample
Three hose specimens shall be tested simultaneously, and the length of the specimen shall be about 500 mm. B3 Equipment
The test equipment shall be as shown in Figure B1.
The test shall be carried out in a well-ventilated test room without ventilation equipment and temperature controlled at the standard test temperature (23). The glass tube shown in Figure B should be fixed tightly on the inside of the test hose. The lower end of the tube should be oil-proof. The upper end of the upper band should have a capillary tube, which has a small ventilation function so that the fuel loss caused by permeation can be replaced by air during the test.
B4: Test method
Introduce test liquid C in the test hose according to ISO 817 and place it in air at standard test room temperature. Then, assemble the test hose and glass tube as shown in Figure B1. According to ISO 1817, inject test liquid C into the hose and glass tube until the surface is about 70m2 above the upper end of the tube. Cover the plug with the capillary tube.
Weigh the test component with an accuracy of 0.01%. Place the fabric in a vertical position at standard laboratory temperature for 24 h, weigh the assembly again and record its weight. Empty the test solution and repeat the 24 h permeability test 15 times or until the maximum permeability is measured. Calculate the average of the three highest weight loss values ​​recorded and calculate the relative efficiency between the inner ends of the hose and the glass tube Gh-T14652.12001
according to the average weight loss value. The relative efficiency is converted into mh
B Flame Permeation Equipment
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