MIL-I-17214B, MILITARY SPECIFICATION: INDICATOR, PERMEABILITY; LOW-MU (GO-NO GO) (07-NOV-1984) [S/S BY ASTM-A342]

MIL-I-17214B, MILITARY SPECIFICATION: INDICATOR, PERMEABILITY; LOW-MU (GO-NO GO) (07-NOV-1984) [S/S BY ASTM-A342]., This specification covers a low-mu permeability indicator, of the go-no go type; for use in determining the permeability of feebly magnetic materials in all forms used in ship construction.