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Qu’est-ce que signifient les formes de purgation par ventilation positive : X, Y et Z ? Dans quelles normes ?

2020-06-11View Original

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Qu’est-ce que signifient les formes de purgation par ventilation positive des instruments d’analyse : type X, type Y, type Z ? Dans quelles normes ?
Reply #22020-06-12
Veuillez vérifier la norme GB 3936.05 : les différences entre px, py et pz sont très importantes. px peut être utilisé dans zone I, qui est le niveau le plus élevé.

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