In Rueping process, the charged cylinder is first subjected to an air pressure of 2.00 to 5.00 kg/cm2 for a specified pressure. Thereafter, an antiseptic pressure of 5.0 to 12.5 kg/cm2 is applied till the required absorption is obtained.
The full-cell (Bethel) process is used when the goal is for wood to retain as much of the preservative as possible. For instance, it is a standard procedure to treat timbers with creosote using the full-cell process to protect the timbers from marine borers. Waterborne preservatives sometimes are applied by the full-cell process. Preservative retention can be controlled by regulating the concentration of the treating solution.
Boucherie Process : The process which it is the object of the present paper to describe forms an important improvement in the mode of preparing timber so as to preserve it from decay.