"residue last contained un1150, 1,2-dichloroethylene, class 3, pgii, f.p. = 6.00c, ems no. f-e, s- d residue last contained un1176, ethyl borate, class 3, pgii, f.p. = 11.00 c,ems no. f-e, s -d residue last contained un1292, tetraethyl silicate, class 3, pgiii, f.p. =40.60 c, ems no. f-e, s-d residu