Shenhai FRAGOR-Probatur
Areas sicut hydrogenii generationis mansiones, hydrogenii purgatio gazofilacia, hydrogenii compressor rooms, et hydrogenii bottling areas, notum pro explosivae naturae, designantur Zonam 1.
Mensuras considerantes in perimetris valvis ac fenestris in his cubiculis, aream usque ad 4.5-metri radii in terra notatur ut Zonam 2.
Considerans hydrogenii instigabant puncta, spatio intra 4.5-metri radii et ad altitudinem 7.5 metris a summo cadit sub Zonam 2 divisio.