QC/T 644-2014 in English

1 Scope

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of automobile metal fuel tank.

This standard is applicable to the metal fuel tank (hereinafter referred to as fuel tank) of gasoline and diesel for Categories M and N automobiles. It may serve as a reference for the metal fuel tanks for vehicle fuels such as alcohol fuel, bio-fuel and coal-to-fuel. It may serve as a reference for the types and connection dimensions of fuel tank cap and refueling port for plastic fuel tanks.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.

GB/T 2518 Continuously hot-dip zinc-coated steel sheet and strip
GB/T 3880.1 Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 1: Technical conditions of delivery
GB/T 3880.2 Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 2: Mechanical properties
GB/T 5065 Hot-dip lead-tin alloy coated cold rolled carbon steel sheets and strips
GB/T 15675 Continuously electrolytic zinc-coated cold-rolled steel sheets and strips
GB 18296 Safety property requirements and test methods for automobile fuel tank
QC/T 484 Automobiles - Paint coating
QC/T 572 Rules for cleanliness of automobile - Determination method

3 Terms and definitions

For the purposes of this standard, the terms and definitions given in GB 18296 apply. For the convenience of application, some terms and definitions in GB 18296 are listed as follows.

3.1
fuel tank
independent tank assembly fixed on an automobile for storing fuel, which is assembled by fuel tank body, refueling pipe, refueling port, fuel tank cap, pipe joint and other accessory devices

3.2
nominal tank capacity
capacity of fuel to be filled specified in the design parameters of fuel tank

4 Technical requirements

4.1 General requirements

The fuel tank shall be manufactured according to the drawings and technical documents approved by the prescribed procedures and shall meet the requirements of this standard.

4.2 Appearance of fuel tank

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation and storage
Annex A (Normative) Types and connection dimensions of fuel tank cap and refueling port
Annex B (Informative) Schematic diagram for intake valve test device