The Formaldehyde Dilution Buffer Set (N74) is intended to be used for preparation of buffered 1% formaldehyde solution in fluorescence in situ hybridization (FISH) procedures on cytologic or formalin-fixed, paraffin-embedded specimens. The Formaldehyde Dilution Buffer Set is intended to be used in combination with Gene bio Solution probes and Gene bio Solution FISH Implementation Kits (Prod. No. Z-2028-5/-20, or Z-2099-20). The product is intended for professional use only. All tests using the product should be performed in a certified, licensed anatomic pathology laboratory under the supervision of a pathologist/human geneticist by qualified personnel.