PART 2- CWI PREP

GTAW Nomenclature

EWP Pure Tungsten

EWLa-1.5 1.5% Lanthanum EWTh-1 1% thorium

EWLa-2 2% Lanthanum EWLa-2 1% Lanthanum

EWCe-2 2% cerium

EWG 1.5% Lanthanum .08% Zirconium, .08% Yttrium EWTh emits alpha radiation

EWLa-2 2% Thorium

EWG General no specific composition

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