GB 19482-2025 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 19482-2025 | English | 185 |
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Safety property requirements and test methods for fuel tanks of motorcycles and mopeds
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| GB 19482-2004 | English | 239 |
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GB 19482-2025: Safety property requirements and test methods for fuel tanks of motorcycles and mopeds
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB19482-2025
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.140
CCS T 80
Replacing GB 19482-2004
Safety property requirements and test methods for fuel
tanks of motorcycles and mopeds
Issued on: MAY 30, 2025
Implemented on: JANUARY 01, 2026
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Safety property requirements for fuel tanks... 6
5 Safety property test methods for fuel tanks... 8
6 Requirements for installing the fuel tank on a motorcycle... 10
7 Implementation of the standard... 11
Appendix A (Normative) Fire test methods... 12
Bibliography... 17
Safety property requirements and test methods for fuel
tanks of motorcycles and mopeds
1 Scope
This document specifies the safety property requirements and test methods for fuel
tanks of motorcycles and mopeds, as well as the requirements for installing the fuel
tank on a motorcycle.
This document applies to metal fuel tanks and non-metallic fuel tanks for motorcycles
and mopeds (hereinafter referred to as "motorcycles").
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
fuel tank
An independent tank assembly fixed to a motorcycle for storing fuel.
3.2
leakage of fuel
Fuel drops from the fuel tank in lines or drops.
3.3
rated capacity
The fuel capacity specified in the fuel tank design parameters.
3.4
fuel weight loss
The change in weight of fuel stored in the fuel tank due to diffusion during the
prescribed fuel tank safety property test.
3.5
dump stop valve
A device that prevents fuel from spilling when a motorcycle falls over.
3.6
fuel tank attachment
Parts and assemblies installed on the fuel tank principal.
Note. Such as fuel tank cap, fuel level sensor, fuel pump, dump stop valve, oil-gas
separator or oil pipe, but excluding charcoal canister.
3.7
fuel supply system
A system consisting of a fuel tank and the fuel tank attachment.
3.8
automatic compensating pressure device
A device that automatically compensates for the working pressure or safety pressure of
the fuel tank.
Note. Such as vent valve, safety valve, etc.
3.9
working pressure of the fuel tank
The pressure above the liquid level in the fuel tank under normal vehicle operating
conditions.
4 Safety property requirements for fuel tanks
4.1 Fuel tanks shall be made of metal or non-metallic materials. The fuel tank and its
adjacent parts shall be designed so as not to generate any electrostatic charge that could
cause sparks between the fuel tank and the vehicle frame.
4.2 Fuel tanks shall be corrosion-resistant.
4.3 The fuel tank is to be subjected to an anti-pressure testing in accordance with 5.1.
The test pressure shall be twice the relative working pressure of the fuel tank or a
relative pressure of 30 kPa, whichever is higher. The fuel tank and its fuel tank
attachment shall not show any rupture or leakage. However, permanent deformation of
the fuel tank is permitted.
4.4 The fuel tank shall be equipped with an automatic compensating pressure device to
automatically release any excess pressure or pressure exceeding the working pressure
of the fuel tank. The automatic compensating pressure device shall be designed to
eliminate any ignition hazard.
4.5 Fuel must not flow out of the fuel tank cap or any device installed to release
excessive pressure. Carry out the test in accordance with 5.2.The average value of the
total fuel leakage at each angle shall not exceed 30 g/min. The amount of fuel dripping
during the overturning process shall not be taken into account.
5 Safety property test methods for fuel tanks
5.1 Anti pressure testing
5.1.1 Unless otherwise specified, the anti-pressure testing shall be carried out at an
ambient temperature of 20 ℃ ~ 30 ℃.
5.1.2 The fuel tank shall be installed with all accessories as per normal use and filled
with the rated capacity of non-flammable liquid (such as tap water). Seal all openings
between the fuel tank and the outside. If there is an automatic compensating pressure
device, the ventilation channel shall also be sealed. Gradually increase the air pressure
inside the fuel tank through the fuel tank filling port, fuel tank vent or fuel supply pipe
until it reaches the pressure value specified in 4.3; maintain this pressure for not less
than 60 seconds. Check and record any leakage from the fuel tank and its accessories,
as well as any deformation of the fuel tank.
5.1.3 If the anti-pressure testing in 5.1.1 is carried out at the fuel tank filler port, the
fuel tank cap shall be subjected to a separate pressure test at the pressure value specified
in 4.3, and this pressure shall be maintained for not less than 60 seconds. Check and
record any leakage from the fuel tank cap.
5.2 Rollover test
5.2.1 Unless otherwise specified, the rollover test shall be carried out at an ambient
temperature of 25 °C ± 5 °C.
5.2.2 Fix the fuel supply system in simulated vehicle loading form on the test fixture.
5.2.3 The test fixture shall rotate along an axis parallel to the longitudinal axis of the
vehicle.
5.2.4 The rollover test shall be carried out twice, once with the fuel tank filled to 90%
of the rated capacity with the test liquid, and once with the fuel tank filled to 30% of
the rated capacity with the test liquid. The test liquid is a non-flammable liquid or tap
water with a viscosity and density similar to that of normally used fuel.
5.2.5 Rotate the installed test device 90° to the left. Remain the fuel tank in this position
for not less than 5 minutes. Rotate the fuel tank another 90° in the same direction.
Maintain at this fully inverted position for at least 5 minutes. Restore the fuel tank to
its normal position and discharge the test liquid that cannot flow back into the fuel tank
from the vent valve, which can be replenished. Rotate the fuel tank 90° to the right from
its installed position. Remain the fuel tank in this position for not less than 5 minutes.
Then, rotate the fuel tank another 90° in the same direction. Maintain at this fully
inverted position for at least 5 minutes. Each 90° turn shall be completed within 3
minutes. The amount of fuel leakage shall be recorded after the fuel tank is turned over
at each angle.
5.3 Test methods for non-metallic fuel tanks
5.3.1 Permeability test
The permeability test shall be carried out on a brand new fuel tank.
Fill the fuel tank with 50% of the rated capacity of the test fuel; close the tank; place it
in an environment with an air temperature of 40 ℃ ± 2 ℃ until there is a stable mass
loss. The pre-storage period shall be no less than 28 days. Empty the fuel tank and then
refill it with 50% of the rated capacity of the test fuel. Place the fuel tank in a stable
environment at a temperature of 40 ℃ ± 2 ℃ until the fuel temperature reaches the test
temperature. Close the tank and measure the fuel mass loss due to diffusion after 56
days. The results of each fuel tank permeability test shall be recorded, and the maximum
value shall be taken as the final result.
Note. The test fuel refers to the motor vehicle gasoline (V) with a research octane
number of 92 or 95 that complies with the provisions of GB 17930.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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