国产97色在线|日韩,久99久女女精品免费观看69堂,天天做天天爱天天干,日本成人免费,美女视频下载app,中国一区二区美女视频,3d美女动漫视频无尽网站




High purity hydrogen

High purity hydrogen

Item name Index
Pure hydrogen High purity hydrogen Ultrapure hydrogen
Hydrogen (H2) purity (volume fraction)/10-2  ≥ 99.99 99.999 99.9999
Oxygen (O2) content (volume fraction)/10-4  ≤ 5 1 0.2
Argon (Ar) content (volume fraction)/10-4  ≤ Supply and demand agreed Supply and demand agreed
Nitrogen (N2) content (volume fraction)/10-4  ≤ 60 5 0.4
Carbon monoxide (CO) content (volume fraction)/10-4  ≤ 5 1 0.1
Carbon dioxide (CO2) content (volume fraction)/10-4  ≤ 5 1 0.1
Methane (CH4) content (volume fraction)/10-4  ≤ 10 1 0.2
Water (H2O) content (volume fraction)/10-4  ≤ 10 3 0.5
Total magazine content (volume fraction)/10-4  ≤ - 10 1

       Supply method:
       1.  Pipe car supply
       2.  Cylinder supply 
       3.  Large-scale pipeline supply