UL 21-2007
液化石油气软管

UL Standard for Safety LP-Gas Hose Tenth Edition

UL 21-2007 发布历史

These requirements cover hose in sizes up to and including a nominal internal diameter of 4 in (102 mm) for conducting liquefied petroleum gas intended to be installed in closed systems in compliance with the Standard of the National Fire Protection Association for the Storage and Handling of Liquefied Petroleum Gasses, NFPA 58. The hose is made for a maximum working pressure of 350 pounds per square inch gague (psig) (2400 kPa). Hose in sizes larger than 2 in (50.8 mm) is not intended for use on reels.

UL 21-2007由美国保险商实验所 US-UL 发布于 2007。

UL 21-2007 在中国标准分类中归属于: E98 油、气集输设备，在国际标准分类中归属于: 23.040.70 软管和软管组件。

UL 21-2007的历代版本如下：

• 1991年12月 UL 21-1991 液化石油气软管
• 1995年06月01日 UL 21-1995 液化石油气软管
• 2007年 UL 21-2007 液化石油气软管
• 2014年12月15日 UL 21-2014 液化气软管的UL安全标准 (第十一版)

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标准号

UL 21-2007

发布日期

2007年

实施日期

废止日期

无

中国标准分类号

E98

国际标准分类号

23.040.70

发布单位

US-UL

被代替标准

UL 21-1995

适用范围

These requirements cover hose in sizes up to and including a nominal internal diameter of 4 in (102 mm) for conducting liquefied petroleum gas intended to be installed in closed systems in compliance with the Standard of the National Fire Protection Association for the Storage and Handling of Liquefied Petroleum Gasses, NFPA 58. The hose is made for a maximum working pressure of 350 pounds per square inch gague (psig) (2400 kPa). Hose in sizes larger than 2 in (50.8 mm) is not intended for use on reels.