In more recent applications, hydrogen is used pure or mixed with nitrogen (sometimes called forming gas) as a tracer gas for minute leak detection. Applications can be found in the automotive, chemical, power generation, aerospace, and telecommunications industries. Hydrogen is an authorized food additive (E 949) that allows food package leak testing among other anti-oxidizing properties. COUNT 3
QSN1 Why would one use hydrogen mixed with nitrogen? ANS1 as a tracer gas for minute leak detection QSN2 What industries can you find these applications? ANS2 automotive, chemical, power generation, aerospace, and telecommunications QSN3 How is hydrogen used as a food additive? ANS3 allows food package leak testing