Document aBrRgv0M6E072YqKyLZb9VYQM

bee t J. W. Madden * Boston BSC V. L. Leilas Key 10, 1971 Hr, 8, P* Sullivan Satire Squlpnont B^Umrlns Co. 60 Edmund Street i. Providence, Rhode Island Doer Mr. Sullivan t Tear request for solvent information on Du Font {roduets hu been sent to me for reply. Both the 3812-S educer end the fiulusr air dry enomolo (93-Line end 181Line) contain about 505* aliphatic hydrocarbons and 52)* aromatic hydrocarbon* (benzene free). With respect to the Threshold Unit Values pub lished by the American Conference of Coverrmantel and Industrial Hygienists, the aromatic portion can ba treated aa haring a minimum TLV ICO ppm. (xylene). The aliphatic portion can ba ignored often computing an approximate TLV since they are higher boiling and have a relatively high TUT (Se ndlx A of Threshold Limit Values Adopted by ACOUI, If you need further assistance., please do not hesitate to contact me. Very truly years, mt/pA trillion V. Miller feminity ft Follutlon Control Coordinator N38439