Which of the following is/are the true recommendations as preventive measures for Libraries against the Deterioration of Library Materials?

(A).  cellulose nitrate-based films should be duplicated onto polyester-based films, which are known as safety films.

(B). Magnesium carbonate and calcium carbonates are the most common alkaline buffers used to strengthen paper.

(C). To maintain a constant room temperature of 20- 25 degrees Celsius and relative humidity of 50-60%

(D). Fluorescent tubes, which emit ultraviolet rays, should be fitted with UV filters.