GB 24930-2010 English PDFUS$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 24930-2010: [GB/T 24930-2010] Safety property requirements and test method for fuel tanks of all-terrain vehicles Status: Valid
Basic dataStandard ID: GB 24930-2010 (GB24930-2010)Description (Translated English): [GB/T 24930-2010] Safety property requirements and test method for fuel tanks of all-terrain vehicles Sector / Industry: National Standard Classification of Chinese Standard: T13 Classification of International Standard: 43.060.40 Word Count Estimation: 10,192 Date of Issue: 2010-08-09 Date of Implementation: 2011-01-01 Regulation (derived from): Announcement of Newly Approved National Standards No. 3, 2010 (No. 158 overall) 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 Chinese standard specifies the all-terrain vehicle fuel tank safety performance requirements and test methods. This standard applies to all-terrain vehicle with a variety of metallic and non-metallic fuel tank fuel tank. GB 24930-2010: [GB/T 24930-2010] Safety property requirements and test method for fuel tanks of all-terrain vehicles---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. Safety property requirements and test method for fuel tanks of all-terrain vehicles ICS 43.060.40 T13 National Standards of People's Republic of China All-terrain vehicle fuel tank Safety requirements and test methods Issued on. 2010-08-09 2011-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsPreface Ⅰ 1 Scope 1 2 Terms and definitions 1 3 fuel tank safety requirements 1 4 fuel tank safety performance test method 2 Appendix A (normative) Fire Test Method 4ForewordChapter 3 of this standard (except 3.1.3), Article 4 and Appendix A mandatory, the rest are recommended. Appendix A of this standard is a normative appendix. The standard four all-terrain vehicle by the National Standardization Technical Committee (SAC/TC344) and focal points. This standard is drafted by. Shanghai Motor Vehicle Inspection Center. Participated in the drafting of this Standard. China Automotive Technology and Research Center, step Yang Group Limited, Group or Group Co., Ltd., Jiangsu Linhai move Machinery Group Corporation, Zhejiang Qianjiang Motorcycle Co., Ltd., Chongqing Jianshe Motorcycle Co., Ltd. The main drafters of this standard. Hu Wenhao, Xu Liyu, Li Lu Shan, Chen Xiangyang Xu Everest, where Zhun, Yuan Jianjun, Yan Qi, Zhou Qin State. The standard implementation of the transition period. For new styling products, from the date of implementation of the standards implementation; the date has been finalized for the products, since the implementation of the standards 12 months after implementation. All-terrain vehicle fuel tank Safety requirements and test methods1 ScopeThis standard specifies the safety requirements and test methods for all-terrain vehicle fuel tank. This standard applies to all-terrain vehicle with a fuel tank of a variety of metals and non-metallic fuel tank.2 Terms and definitionsThe following terms and definitions apply to this standard. 2.1 Fuel tank fueltank Fixed at four all-terrain vehicle, for storing fuel independent housing assembly. 2.2 Fuel leakage fuelleak It was outwardly from the fuel tank fuel line or drip like whereabouts. 2.3 Rated capacity ratedcapacity As a fuel tank design parameters refueling capacity. 2.4 Fuel quality loss fuelweightloss In the fuel tank in a predetermined safety performance test, since the diffusion of the lead storage tank to reduce fuel quality.3 fuel tank safety requirements3.1 General requirements 3.1.1 The fuel tank and the adjacent part of the design should not produce any static charge spark that occurs between the fuel tank and the frame, so as not to point Ranran Mixture of oil and air. 3.1.2 rated capacity should not exceed the maximum liquid fuel tank capacity of 95%. Above rated capacity 95L fuel tank shall be equipped with safety Valve means. 3.1.3 safety valve device may be attached to the fuel tank can also be provided in the attachment system to prevent fuel tank due to internal pressure increases cause me Rupture. 3.1.4 is applied to the fuel tank is equipped with a pressure relief valve means, so that the inside pressure was slowly raised, safety valve opening pressure should be 35kPa ~ 50kPa. After the safety valve opens, the pressure in the fuel tank should not be higher than the valve opening pressure 5kPa. 3.1.5 The fuel tank should be resistant to corrosion. 3.1.6 shall have adequate means (vents, safety valves, etc.) to automatically release any additional pressure or working pressure exceeds the pressure. ventilation Holes shall be designed to rule out any potential fire hazards. 3.1.7 Fuel evaporative emission system is equipped with fuel tank should have a vent, the fuel tank is filled this vent should remain in the oil surface side, To ensure that the evaporative emission can always discharge the fuel tank. 3.2 fuel tank leakage - sealing performance requirements There should be no bubbles within 1min after tightness test, the fuel tank reaches a predetermined pressure - 4.1 by the method of leakage. 3.3 Fuel tank cap sealing performance requirements After sealing performance test method as described in 4.2 of the gas cap, gas cap leakage should not exceed 30g/min. 3.4 fuel tank vibration durability requirements After completion method as described in 4.3 fuel tank vibration test, according to the method of inspection 4.1 sealing fuel tank, fuel tank there should be no leakage phenomenon. 3.5 Performance Requirements metal fuel tank pressure After completion of the pressure test method by 4.4, 4.1 according to the method to check the fuel tank, there should be no leakage, cracking phenomenon. 3.6 Non-metallic fuel tank safety requirements 3.6.1 Performance requirements penetration 4.5.1 press carried the fuel tank permeability test, the fuel tank of fuel mass loss should not exceed 20g/24h. If the mass loss of more than 20g/24h, should be at 21 ℃ ± 2 ℃ ambient temperature test again, all other conditions remain Variable (including pre-trial storage of 28d at 40 ℃ ± 2 ℃ ambient temperature), at the ambient temperature measured fuel mass loss Should not exceed 10g/24h. 3.6.2 Impact Performance Requirements 4.5.2 The method according to the fuel tank impact test, a test for any selected point on the fuel tank once after impact, should not occur Liquid leakage. 3.6.3 Mechanical strength performance requirements Press method 4.5.3 fuel tank mechanical strength test, the fuel tank should not have any deformation may make it impossible to use (such as fuel The tank should not produce leakage, cracking, perforation and so on). In assessing the deformation of the fuel tank, taking into account specific installation conditions. 3.6.4 fuel resistant performance requirements The method according to 4.5.4 after the fuel tank fuel resistant performance test, the average value before and after the two tests should not be a difference of 25%. 3.6.5 fire performance requirements Tank material in the test set forth in Appendix A flame burning rate should be less than 0.64mm/s. 3.6.6 High temperature performance requirements 4.5.5 Complete press the fuel tank temperature test, the fuel tank should not be noticeable plastic deformation or leakage. After the test is completed Fuel tank should be able to fully meet the requirements. 3.7 Fuel tank installation requirements 3.7.1 Fuel Tank Design, manufacture and installation of the fuel tank attachment system in all driving conditions should be able to perform its functions. Fuel tank filler and vent the exhaust pipe should not be facing the outlet, and should be away from the outlet end of the exhaust pipe of 300mm or more, otherwise it should be set Effective home insulation. Fuel tank filler and vent should be away from exposed electrical connectors may produce sparks and external electrical switch 200mm or more. Fuel tank filler and vent should be provided in the occupant compartment. 3.7.2 Fuel supply system Effective protection portion of the vehicle body frame or engine fuel system components shall be subject, in order to avoid obstacles on the ground by the impact. If the above section Although member located beneath the vehicle, but between it and the ground is greater than the distance between the front of the frame or body and the ground, you do not need it Species protection. Fuel supply system in the design, manufacture and installation, should be able to withstand any corrosion from contact with internal and external. Vehicle architecture, Twisting, bending and vibration of the engine and driveline not make the fuel system components by friction or extra stress occurs.4 fuel tank safety performance test method4.1 fuel tank leakage - sealing performance test method Empty the fuel tank cap fuel tank cap and install all accessories, sealing all imports and exports. Into the tank, the fuel tank is completely submerged In water. The fuel tank is pressurized to a relatively smooth double the working pressure (absolute pressure of not less than 130kPa), the pressure reaches a predetermined value When the timing and observe the leakage. 4.2 Test method for sealing fuel tank cap Rated capacity added in the fuel tank of water, cover the fuel tank cap. Closed all other import and export. Flip to the fuel tank filler neck portion The center line perpendicular to the ground, to be stable fuel tank 15s, with a stopwatch, then the amount of leakage from the fuel tank cap cup out of the water, weighed 1min The leakage. Vibration Durability Test Methods 4.3 fuel tank Simulate actual loading state of the fuel tank fixed to the vibration test stand. Fuel tank was added to half of the rated capacity of water, cover fuel Cover and seal all imports and exports. Table 1 provides the test procedure vibration test. Table 1 fuel tank vibration durability test procedures Acceleration / (M/s2) Vibration frequency / Hz Vibration Time/h Up and down before and after Installed water 3,030,422 nominal capacity 1/2 4.4 metal fuel tank pressure performance test method Simulate actual loading state, the metal fuel tank mounted on the test apparatus. Seal all forward, is applied to the fuel tank after exit 80kPa pressure, hold pressure and 30s. 4.5 Non-metallic fuel tank safety performance test methods 4.5.1 Permeability Test Method Test fuel into the fuel tank filled to 50% of rated capacity, close the fuel tank, placed in an air temperature of 40 ℃ ± 2 ℃ environment, until a Constant loss of quality. This time at least 28d (pre-storage period). Empty the tank after filling to 50% of rated capacity test fuel, will Tank at a temperature stable environment for the next 40 ℃ ± 2 ℃ until which the fuel temperature and the test temperature phase while closing the fuel tank, placed 56d After the fuel is measured and recorded mass loss due to diffusion, in units of grams (g). Performance Test Methods 4.5.2 Impact Fuel tank filled to 50% lower than the freezing point of water and glycol mixture -30 ℃ ± 2 ℃ or any other frozen material does not corrode tank Solution to the rated capacity. Test the temperature of the liquid fuel tank should be maintained at less than -20 ℃ ± 5 ℃. Cooling tank at a corresponding ambient temperature. It can also be Fuel tank filled with a suitable freeze liquid, so that the fuel tank to keep the test temperature for at least 1h. Using a pendulum impact on the fuel tank during the test carried out, its impact head shape is an equilateral triangular pyramid, its apex curvature and edge half Diameter of 3.0mm, the quality of 30kg, the impact energy of not less than 30.0J. Test points on the fuel tank should be selected are those due to the installation of the tank and its position on the vehicle is considered in danger point. 4.5.3 Test methods for mechanical strength properties The fuel tank temperature was added 53 ℃ ± 2 ℃ of water to the rated capacity, and applying a relative internal pressure not less than 30kPa (if fuel Relative to the inner workings of the tank design relative internal working pressure greater than 15kPa, then the relative test pressure applied shall be designed fuel tank 2 times the pressure). Place the sealed fuel tank 5h. Fuel performance test method 4.5.4 Resistance First, I never had the fuel storage fuel tank flat surface take six thickness substantially the same tensile test piece. At 23 ℃ ± 2 ℃ of At a temperature in 50mm/min tensile speed to measure the tensile strength and elastic limit, average value thereof. Then use the test piece from a fuel storage has been pre-storage period (28d) of the surface of the fuel tank removed subjected to the same test, Determination of tensile strength and elastic limit of the material of the fuel tank and record the average value. 4.5.5 High temperature performance test method Fuel tank with 50% of the rated capacity of 20 ℃ ± 2 ℃ of water, placed 1h at 70 ℃ ± 2 ℃ ambient temperature. Test equipment should be installed into account the actual installation conditions.Appendix A(Normative) Fire Test Method A.1 Test Equipment A.1.1 test vessel With a heat-resistant observation window closed test smoke hood. After the smoke test within this cover can use a mirror to observe the sample surface. Exhaust fan should be turned off during the test, when the end of the trial should start immediately in order to remove harmful gases generated by the combustion products. Test may also be a metal box under the hood of smoke were, and the exhaust fan is in operation. Top wall and bottom of the metal box should pass Vents to ensure adequate air, does not result in burning off the sample. A.1.2 bracket A test stand, with two through ball joints can be installed anywhere in the fixture. A.1.3 burner 10mm nozzle with gas lamps. Nozzle without any attachments should be able to install a gas lamp. A.1.4 metal mesh Objective mesh number of 20 100mm × 100mm square metallic mesh. A.1.5 timer Resolution is not greater than the 1s timer or similar device. A.1.6 sink A.1.7 scale Scale in millimeters (mm). A.2 test sample A.2.1 should take such a direct fuel tank at least 10 long 125mm ± 5mm, width of 12.5mm ± 0.2mm in the test sample. If the shape of the fuel tank is not allowed to do so, should the material fuel tank housing part injection-molded 3mm thick and enough flat area In order to obtain a test sample required. A.2.2 scored on each test sample two parallel lines, one line from the end of 25mm, another line from the same end of 100mm. A.2.3 edge of the test sample should be clear, sawed edge applications fine sandpaper polished smooth. A.3 Test Method A.3.1 the end closest to the 100mm crossed flags of the test sample is mounted on a bracket jig on the vertical axis the level of the sample, Horizontal 45 ° angle with the horizontal direction. 10mm below the level of the test sample from the edge of a metal mesh installed A.1.4 said, The samples were protruding edge in the longitudinal direction of the wire mesh of about 13mm (see Figure A.1). Before each test, we should burn any wire online The residue, or replacement of the wire mesh. A pool filled with water on the table smoke hood, used to receive any incandescent particles during the test may be falling. A.3.2 amount of air supplied to the burner can be adjusted to obtain approximately 25mm high blue flame. A.3.3 shown in Figure A.1, the burner should be placed so that the flame touches the outer edge of the test sample, at the same time start the timer. Make fire Flame held in contact with the test sample 30s, if the sample deformation, melt or shrink from the flame, the flame should be moved to keep it always touches the sample. During the test would severely deformed sample results invalid. 30s later or when the flame front should reach 25mm flag removed burners. If the flame front advance to the flag at the burner out of the sample should be at least 450mm and closed smoke hood. A.3.4 When the flame front reach the 25mm mark, the timer starts counting when the time t1. A.3.5 When the combustion stop sign at or reaches 100mm (with or without flame), stop the clock. The timing of when this time Room in seconds (s) as a unit, is recorded as t. A.3.6 If the test sample does not reach the 100mm mark, from 100mm to mark the beginning of unburned samples were measured along the shorter edge The length of the measurement results shall be rounded 5 into 4 millimeters (mm) level. Burning should be equal to the length of 100mm minus unburned in millimeters (mm) represented by length. A.3.7 If the test sample has been burned to the flag at or more than 100mm, the combustion speed is. t-t1 (Mm/s) A.3.8 A.3.1 ~ A.3.7 Repeat the test until three samples have been burned to the 100mm or more signs or tested 10 samples Goods. If 10 samples to a combustion flag or exceeds 100mm, then the test is repeated A.3.1 ~ A.3.7 10 new samples. Test results indicate A.4 A.4.1 If at least two samples have been burned to the 100mm mark, then the result of applying the average burning velocity (mm/s) is represented, already It burned to the flag burning rate of the average of all samples. A.4.2 If 10 samples or 20 samples are not only a sign of combustion to 100mm, apply the average combustion time and average Burn length to show the results. A.4.2.1 mean burning time (ACT), seconds (s). ACT = Σ i = 1 (Ti-30) Where. n --- number of samples; ti --- flame touches the sample to sample a flame-out time. ACT approximate value multiples to 5s; if removed burner lasts less than 3s Click "less than 5s" in mind. Under no circumstances should ACT value 0 is written. A.4.2.2 The average burn length (ACL), in millimeters (mm). ACL = Σ i = 1 (100 unburned length) Where. n --- number of samples. ACL values rounded to multiples of 5mm; if the combustion length is less than 3mm Click "less than 5mm" in mind. Under no circumstances should the value written 0 ACL. If a single sample to flag burning, its combustion length by 100mm calculations. A.4.3 complete results include at least the following. --- Sample identification, including the preparation and storage methods; --- The average sample thickness deviation of ± 1%; --- The number of samples to be tested; --- Dispersion of combustion time values; --- Dispersion of the combustion length values; --- If the sample because of dripping, moving, or broken into particles without burning to burn flags, shall be recorded; --- If attached to a wire mesh material re-ignited a burning sample should be recorded. Millimeters Figure A.1 Test equipment and installation status ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 24930-2010_English be delivered?Answer: Upon your order, we will start to translate GB 24930-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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