產(chǎn)品標準：GB/T 8979-2008
項 目 | 指 標 | ||
高純氮 | |||
氮氣（N2）純度（體積分數(shù)）/10-2 ≥ | 99.999 | ||
氧（O2）含量（體積分數(shù)）/10-6 ≤ | 3 | ||
氬（Ar）含量（體積分數(shù)）/10-6 ≤ | — | ||
氫（H2）含量（體積分數(shù)）/10-6 ≤ | 1 | ||
一氧化碳（CO）含量（體積分數(shù)）/10-6 ≤ | 1 | ||
二氧化碳（CO2）含量（體積分數(shù)）/10-6 ≤ | 1 | ||
甲烷（CH4）含量（體積分數(shù)）/10-6 ≤ | 1 | ||
水（H2O）含量（體積分數(shù)）/10-6 ≤ | 3 | ||
