Sedgewick Rafter and Cover Glass - S50, S51, S52计数板

For use in water analysis, culture inspection, and any fluid where particles per unit volume need to be determined. Available in two versions:
S50 is an economically priced plastic cell.
S52 is made from glass, with a chromium surface image. This is intended for professional use and when using phase contrast. In each type, a central cell is filled with fluid and a coverglass limits the volume to 1 milliliter. The grid subdivides this into micro-liters.
S51 is the spare cover glass for S50 and S52. Each cell is supplied with one cover glass.