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6.5 Nitrogen Sealing Device
Ⅰ Dominant Items
6.5.1 The orifice of nitrogen sealing ring shall be unobstructed
Quantity to be checked:100%.
Inspection method:Observe.
Ⅱ General Items
6.5.2 The allowable deviation for installation of nitrogen sealing ring shall comply with the requirement in Table 6.5.2.
Quantity to be checked:100%.
Inspection method:See Table 6.5.2.
Table 6.5.2 Allowable deviation for installation of nitrogen sealing ring
Table 6.5.2（Continued）
