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SDS Idrogeno 3.1% – Argon 96.9%

SDS 99,999% Elio – 0,001% Acqua

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

SDS HCN 10 ppm in N2

SDS H2 0.5% – O2 20.9% in N2