|Formaldehyde solution (36-38%)||6 ml|
|Distilled water||1 liter|
Dissolve 8.5 g NaCl in 1 liter distilled water. Autoclave 15 min at 121°C. Cool to room temperature. Add 6 ml formaldehyde solution. Do not autoclave after addition of formaldehyde.
Original Source: Bacteriological Analytical Manual, 8th Edition, Revision A, 1998.