A colorless,non-flammable,high pressure gas.(一种无色,不燃,高压气体) Formula(分子式): He Molecular weight(分子量): 4.003 Boiling point(沸点): -268.94℃,452.1°F; Melting point(融点): -272.2℃,-457.96°F. Specific Volume(比容): 6.06m3/kg(21.1℃,101.325KPa) 97.1ft3/lb(70°F,14.696psia) UN Number(UN号码): UN1046 DOT Classification(DOT类别): 2.2(Nonflammable Gas)(不燃性气体) DOT Label(DOT标签): NON-FLAMMABLE GAS(不燃性气体) Cylinder Connection(钢瓶接口): CGA/DISS/JIS--580/718/W22-14R Grsde(级别) 6N Purity(纯度) 99.9999% Guaranteed Specification(保证规格)
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