Standard No.:	SH/T 0657-2007
English Name:	Standard test method for trace nitrogen in liquid petroleum hydrocarbons by syringe/inlet oxidative combustion and chemiluminescence detection
Chinese Name:	液态石油烃中痕量氮的测定 氧化燃烧和化学发光法
Chinese Classification:	E30    Petroleum products in general
Professional Classification:	SH    Professional Standard - Petrochemical
Issued by:	NDRC
Issued on:	2007-8-1
Implemented on:	2008-1-1
Status:	valid
Superseding:	SH/T 0657-1998 Standard test method for trace nitrogen in liquid petroleum hydrocarbons by syringe/inlet oxidative combustion and chemiluminescence detection
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	90.00
Delivery:	via email in 1~3 business day

对于液态石油烃中氮含量大于100mg/kg的样品，SH/T 0704方法更为适用。由实验室之间的协作试验研究表明，对于超出方法规定范围的样品，通过选择适当的溶剂将样品的氮含量和粘度范围稀释至方法规定的范围后，本方法也可适用。然而，操作人员应核查试样在溶剂中的溶解度，并确认用注射器直接将稀释度样注入炉中时，不会因试样或溶剂在针管内的热解而造成测量结果偏低。