This standard specifies the general requirements and physical tests for non-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 14652.2-2001 Non-fire-resistant fuel hoses for small boats GB/T14652.2-2001 Standard download decompression password: www.bzxz.net

ICS 47.080
National Standard of the People's Republic of China
GB/T 14652.22001
idt ISo 8469:1994
Non-fire-resistant fuel hose
Small craft -. Non-fire-resistant fuel hoses2001-12-13 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on August 1, 2002
GH/T 14652.2--2001
This standard is a revision of GB/114652
Fuel hose 3.
1993%小無
This standard is equivalent to ISO8469:1994 (Non-fire-resistant fuel hose for small boats). This standard will replace GB/T14652--1993\Non-fire-resistant fuel hose\Subject A of this standard is the standard.
This standard is proposed by China Shipbuilding Industry Corporation. This standard is under the jurisdiction of the 708th Institute of China Shipbuilding Industry. The drafting unit of this standard is the 708th Institute of China Shipbuilding Industry Corporation. The main drafters of this standard are Lin Zaihui, Li Jusheng, and Wang Puzheng. This standard was first issued in July 1993. GB/T14652.2--2001
ISO Foreword
The International Organization for Standardization (ISO) is a worldwide federation of member groups of various standards bodies (ISCs). The formulation of international standards is carried out by the ISC technical committees. Each 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 shall be sent to the member groups for voting before being approved as international standards by the ISO Council. According to the IS) standard-setting procedures, an international standard shall be approved by at least 75% of the member groups to become an international standard! This international standard ISO8469;1994 was developed by IS0/TC188\small\technical committee. Appendix A of this international standard is the technical appendix. 1 Scope
National Standard of the People's Republic of China
Small Boat Non-fire Resistant Fuel Hose ... 2. Referenced standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is launched, the versions shown are valid: the standards will be revised! · The parties using this international standard should discuss the possibility of using the latest version of the following standards. 131)3:1573 preferred series
150)188:1342 vulcanization speed or heat resistance test 1S1 1317+t092
general 1. Inspection of the inner diameter and length of rubber and plastic hoses introduced by the industry 1S11402:1511
pressure test of plastic hose and pipe assembly 15)1817:198 determination of the influence of chemical rubber on the body 15)7213:1191 determination of the vacuum performance of molded rubber wall material and soft joint parts 1S) 7326:1591
Evaluation of static performance of rubber and plastic pipes 3 General requirements
The inner diameter of the pipes shall meet the requirements of 15.3.7 for pores, chemical impurities and other defects. The soft material shall meet the requirements of each test in Chapter 5 to prove its suitability for use in cabins. The mark of the mark shall meet the requirements of the first clause. 2 Nominal inner diameter
According to the RJ1 system of 1()3, the nominal inner diameter is shown in Table 1, and its tolerance shall be as shown in Table 1 or derived from 150) 130? Physical test of finished hose products on the ground
Take out the hose from the product: get the root or reduce the parts. According to ISt)18, fill the test solution C, store it in the air of the standard evaluation laboratory: 21% air efficiency
, and store it in a clean cold water tube or test it. According to [)2, the test piece is gradually insensitive to the public question. The inner diameter is or more of the larger the explosion sensitivity is, the smaller the pipe is. Note: at least 1P; when the inner diameter is; the larger the pipe Rate less than) MPa
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China200112-[3Approved2002060Implementation
Nominal inner diameter4
5.2 Vacuum cooker energy
GB/T14652.2—2001
1 Tolerance of nominal inner diameter
#6.381012.520
Carry out the test according to method A specified in TS0)7233 using the test conditions specified in Table 2. The test time shall be 20 s, and the diameter used shall be C. 8 ct. Table 2 Pressure conditions for vacuum performance test
Nominal inner diameter
× 10--25 bzxZ.net
5. 3 Volume change in liquid
40 50 63
Pressure lower than the ambient
No test required
Determine the volume change of the hose (tube and outer sheath) by the force method specified in ISO) 1817. At standard laboratory temperature (23°C), immerse the test piece in liquid C for 70 h ± 2 h. If the hose is made of a single compound (with or without reinforcement), its cumulative expansion in liquid C shall not exceed 30%. For hoses mainly used for wind and acid ozone resistance, the inner layer is a fuel resistant material and the outer layer is another material, the volume increase in liquid C shall not exceed 3% for the inner layer of the pipe. The outer sheath shall not exceed 120°C. 5.4 Mass reduction in liquid (
Determine the mass reduction of the inner layer according to the method specified in ISO) 1817 4i, and the test piece shall be treated according to the provisions of 5.1. The mass reduction of the inner layer shall not exceed 8% of the original mass of the test piece. %: 6% mass reduction is equivalent to 10% of the volume reduction: 5.5 Oxygen action
The hose shall be tested according to the method specified in JS () 7326 1 and observed with a 2x magnifying glass. No visible cracks shall appear on the specimen. 5.6 Rapid aging
According to the provisions of ISO) 18, after aging at 72°C in a ventilation box at a temperature of 10UC, the hardness increase of the outer sheath shall not be greater than 1G international rubber hardness (IRI3) of the original thickness. 5.7 Fuel penetration
A permeability test shall be carried out. When tested according to the method described in Appendix A (Appendix to the standard) or an equivalent method, the hose should be classified as follows:
The permeability of the soft hose is less than or equal to 4 g/(m2,h); the permeability of the hose is greater than 1 α/(m°·h), but less than or equal to 12 g/(mh). 6 Marking and marking
6.1 Marking
The following characters should be used:
*13\Non-fire resistant fuel hoses are marked with the following. \1\Used to mark fuel hoses with a fuel permeability less than or equal to 4g/(m·h); "2\Used to mark fuel hoses with a fuel permeability greater than 4g/(m·h) but less than or equal to 12g/(\·h). 6.2 Marking
Hoses that meet technical standards shall be marked with the following markings at least 0.3m apart: manufacturer or supplier name or trademark; year of manufacture (in units);
GB/T14652.2-2001
According to the provisions of 6.1, "GB/114652.2B1\ or "GB/T11652.2-B2" The height of the letters and numbers of the marking shall be at least 3mm, and the marking shall withstand washing with ordinary detergents. The standard may include additional content,
A Basic Requirements
GR14652.22001
Appendix A
{Record of Inhibition Trap;
Fuel Penetration Test
First expose the soft arm section of the micro or the core to the sugar core. Then transfer the test system to this section, in continuous [non-power,According to 21 b, the concentration loss due to penetration is determined by weighing or until the maximum loss is obtained. A42 Sampling
The test is carried out simultaneously with a test piece of the same type. The length of the test piece should be about 300 mm. 43 Equipment
The test is carried out in a well-ventilated test room without ventilation equipment and the temperature is controlled at the standard test room temperature (23 (>). The small glass arm shown in Figure 1 is fixed tightly to the inner threshold of the test hose. The lower part of the hose should be tight and impermeable at its lower part. There should be a capillary tube at the top of the pipe, which has only a very small ventilation effect to replace the air in the test jet.
44 Test method ||tt || Fill the test hose with test liquid, place it in a sealed atmosphere at standard test room temperature for 7 minutes, and assemble the test hose and glass tube as shown in the figure. Refill the test hose and glass tube as shown in 1SO18 until the test tube is about 7 mm from the upper end of the hose, and cover it with a capillary tube. Place this assembly in a vertical state under standard test conditions for 1 minute and weigh it again, record its weight loss, and record this 2 minutes. h permeation test 15 times, or until the maximum permeation value is obtained. The average of the three maximum weight loss values ​​recorded is calculated and the inner diameter of the soft tube and the effective length of the soft tube in the glass tube are calculated based on this average weight loss value. The unit of permeability is / (mh). Explosion frame
GB/T 14652.2 - 2001
Being skin and
Item management
Figure AI fuel oil diagnostic permeability test equipment
One test year
R small ten
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