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SDS Hydrogen 3.1% – Argon 96.9%

SDS Helium 99.999% – Water 0.001%

SDS Helium – 3ppm CO – 3 ppm CH4 – 3 ppm N2 – 3 ppm O2

SDS HCN 10 ppm in N2

SDS H2 0.5% – O2 20.9% in N2