Kan. Admin. Regs. § 28-27-11
" The words "do not take internally" may be omitted from the labeling of articles described in 28-27-10 except in the case of clear liquids, such as thinners. Regardless of flash point, these clear liquids shall bear appropriate labeling as indicated in 28-27-10 plus the warning "do not take internally."
(Authorized by K.S.A. 1965 Supp. 65-2703; effective Jan. 1, 1966.)