GB/T 44851.2-2025 Active National standards

GB/T 44851.2-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 2:Performance and general test methods

GB/T 44851.2-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 2:Performance and general test methods

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 44851.2-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: A car

ICS Name: Comprehensive Road Vehicles

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Publisher: 国家市场监督管理总局、国家标准化管理委员会

Technical Committee: 全国汽车标准化技术委员会(SAC/TC 114)

Pages: 20 pages

Scope

本文件规定了液化天然气燃气系统部件的性能要求，描述了系统部件的试验方法，包括一般要求、
液静压强度试验、泄漏试验、抗过扭矩试验、弯矩试验、连续运行试验、耐腐蚀性试验、耐氧老化试验、过电压试验、非金属材料浸渍试验、抗振性试验和黄铜材料相容性试验。
本文件适用于GB/T 3730.1中定义的车辆类型。
本文件不适用于以下内容：
a) 气瓶；
b) 固定式燃气发动机；
c) 容器固定机件；
d) 电子燃料控制系统；
e) 加注口。
本文件未覆盖到的部件参照执行，并进行相应的功能测试。
除非另有规定，本文件中提及的压力均视为表压。
本文件中用作燃料的天然气的工作压力为1.6 MPa。通过适当的因数(比例)调整压力，以适应其他工作压力。例如，工作压力为2 MPa的系统要求压力乘以1.25。

Development Information

Drafting Units:

潍柴动力股份有限公司、中国汽车工程研究院股份有限公司、张家港中集圣达因低温装备有限公司、重庆市特种设备检测研究院、陕西汽车集团股份有限公司、襄阳达安汽车检测中心有限公司、北京兰天达汽车清洁燃料技术有限公司、重庆凯瑞动力科技有限公司、襄阳群龙汽车部件股份有限公司、甘肃省特种设备检验检测研究院

Drafting Persons:

潘永传、黄兴、罗晓钟、陈启勇、张文博、袁辉、杨志刚、石见白、高石、唐昆鹏、兰楠、陆江峰、高洁、姚森、刘军、李志厚、陈万应、冯皓然、郭文军、戴俊楠、陈浩、赵红全、刘洋、何程然、方春玉、孙宝财、冯璐、李男男、于惠

Word Count: 19 Thousand words Pages: 20 pages

Same series standard

GB/T 44851.1-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 1:General requirements and definitions GB/T 44851.4-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 4:Manual valve GB/T 44851.5-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 5:Tank pressure gauge GB/T 44851.7-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 7:Pressure relief valve(PRV) GB/T 44851.8-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 8:Excess flow valve GB/T 44851.10-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 10:Rigid fuel line in stainless steel GB/T 44851.11-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 11:Fittings GB/T 44851.12-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 12:Rigid fuel line in copper and its alloys GB/T 44851.13-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 13:Tank pressure control regulator GB/T 44851.14-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 14:Differential pressure fuel content gauge GB/T 44851.15-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 15:Capacitance fuel content gauge GB/T 44851.16-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 16:Heat exchanger-vaporizer GB/T 44851.17-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 17:Natural gas detector GB/T 44851.18-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 18:Gas temperature sensor

Referenced Standards

GB/T 3512-2001 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method GB/T 3512-2014 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method GB/T 10125-1997 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 44851.1-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 1:General requirements and definitions GB/T 44851.1-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 1:General requirements and definitions GB/T 44851.2-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 2:Performance and general test methods GB/T 44851.3-2024 Road vehicles—Liquefied natural gas(LNG)fuel system components—Part 3:Check valve GB/T 44851.4-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 4:Manual valve GB/T 44851.5-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 5:Tank pressure gauge GB/T 44851.7-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 7:Pressure relief valve(PRV) GB/T 44851.8-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 8:Excess flow valve GB/T 44851.10-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 10:Rigid fuel line in stainless steel GB/T 44851.11-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 11:Fittings GB/T 44851.12-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 12:Rigid fuel line in copper and its alloys GB/T 44851.13-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 13:Tank pressure control regulator GB/T 44851.14-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 14:Differential pressure fuel content gauge GB/T 44851.15-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 15:Capacitance fuel content gauge GB/T 44851.16-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 16:Heat exchanger-vaporizer GB/T 44851.17-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 17:Natural gas detector GB/T 44851.18-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 18:Gas temperature sensor ISO 15500(所有部分)

Adopt standards

ISO 12614-2:2021

Related Standards

GB/T 4352-1984 Replaced

GB/T 4352-1984 Fuel consumption for trucks in operation

Publish Date: 1984-04-30

GB/T 4353-1984 Replaced

GB/T 4353-1984 Fuel consumption for passenger vehicles in operation

Publish Date: 1984-04-30

GB/T 4971-1985 Replaced

GB/T 4971-1985 Terms and definitions—Automotive ride comfort

Publish Date: 1985-03-02

GB/T 5902-1986 Replaced

GB/T 5902-1986 Method of pulse input running test-Automobile ride comfort

Publish Date: 1986-03-05

GB/T 7031-1986 Replaced

GB/T 7031-1986 Vehicle vibration—Describing method for road surface irregularity

Publish Date: 1986-11-25

GB/T 918.1-1989 Abolished

GB/T 918.1-1989 Classification and code for road vehicles—Motor vehicle

Publish Date: 1989-03-27