ʻO ka wehewehe pōkole:

a. Pono ka mahana ambient i loko o 10 ℃-+ 40 ℃ (ʻae ʻia ka hale kūʻai a me ka halihali ma-30C), b. ʻAʻole ʻoi aku ke kiʻekiʻe ma mua o 2,000m; c. ʻO ke kūlana haʻahaʻa pili: ʻaʻole pono e ʻoi aku ka waiwai o kēlā me kēia lā ma mua o 95%, ʻoi aku ka nui o ka mahina ma mua o 90%; ʻoi aku ma luna o 18 x10-2MPa, i ka wā haʻahaʻa kiʻekiʻe, hiki ke hana ʻia ka condensation ma muli o ka hāʻule ʻana o ka mahana i kēlā me kēia lā ʻaʻole pono ma mua o 2,2 x 10-3MPa. Ka ikaika seismic: ʻaʻole ma mua o Ms8; e. ʻO nā wahi mamao loa mai ke ahi, pahū, pollution koʻikoʻi, ʻino kemika a i ʻole ka weliweli