质量标准：GB/T 8979-2008

氮气纯度（N2）（V/V)10-2≥		99.999
氧含量（O2）（V/V)10-6≤		3
氩含量（Ar）（V/V)10-6≤		/
氢含量（H2）（V/V)10-6≤		1
一氧化碳含量（CO）（V/V)10-6≤		1
二氧化碳含量（CO2）（V/V)10-6≤		1
甲烷含量（CH4）（V/V)10-6≤		1
水含量（H2O）（V/V)10-6≤		2

高纯氮气  图片：




High purity nitrogen
High Purity Nitrogen Details:

Application: Gas Chromatography Carrier Gas
Specifications: 4L, 8L, 40L, 50L
Purity: 99.999%
Quality standard: GB/T 8979-2008

Nitrogen purity (N2) (V/V) 10-2≥ 99.999
Oxygen content (O2) (V/V) 10-6≤ 3
Argon content (Ar) (V/V) 10-6≤ /
Hydrogen content (H2) (V/V) 10-6≤ 1
Carbon monoxide content (CO) (V/V) 10-6≤ 1
Carbon dioxide content (CO2) (V/V) 10-6≤ 1
Methane content (CH4) (V/V) 10-6≤ 1
Water content (H2O) (V/V) 10-6≤ 2