Cleaning solutions for removing residuals from the surface of an integrated circuit device. A niobium powder for capacitors, wherein the chromium content is 50 ppm by mass or less, granulated product and sintered body thereof, and producing method of those; 2. The axis of the latch housing is offset outwardly of an imaginary line tangentially intersecting the bore of the socket by more than half the diameter of the latch pin shaft but less than half the diameter of the latch pin head. The multiple capacitor segments are arranged in a matrix having M rows and N columns. A liquid sample voltage source is located within the reservoir, and the liquid sample voltage source is designed to provide a charge to the liquid sample. A second strip of adhesive tape is positioned such that a first side is adjacent to a first portion of an inside surface of the second sheet of fabric, and the second sheet of fabric is folded such that a second portion of the inside surface of the second sheet of fabric overlaps a second side of the second strip of adhesive tape.