TECHNOLOGY FOCUS - ELECTRONICS - (s1) comprises a fuel cell containing an electrode assembly having an anode, a cathode, and an electrolyte.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Fluid: (F1) further comprises an alcohol (preferably methanol, ethanol, propanol, butanol, furfurol, ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, dipropylene glycol, butylene glycol, glycerol, monoethylether of glycerol, dimethyl ether of glycerol, 1,2,6-hexanetriol, trimethylolpropane and/or methoxyethanol); water; and at least one additive (preferably defoamer, bitterant and/or dispersant).Preferred Components: (a1) is substantially free of functional groups (preferably carboxylate group, sulfonate groups, phosphonate groups, quaternary amines, groups that carry a positive charge, and groups that carry a negative charge) that will form an ionic species due to hydrolysis in an aqueous alcohol solution. (a1) comprises at least one of the following chromophores: anthraquinone, triphenylmethane, diphenylmethane, azo containing compounds, disazo containing compounds, trisazo containing compounds, xanthene, acridine, thiazole, two or more conjugated aromatic groups, two or more conjugated heterocyclic groups and/or two or more conjugated C-C double bond (preferably anthraquinone, triphenylmethane, diphenylmethane, azo containing compound, disazo containing compound, trisazo containing compound and/or diazo containing compound); and at least one non-conductive alcoholic or one poly(oxyalkylene) side chain containing 1-30C. (a1) is of formula:R(Ak((B)nR1)m)x.R = organic chromophore selected from anthraquinone, triphenylmethane, diphenylmethane, azo containing compounds, disazo containing compounds, trisazo containing compounds, diazo containing compounds, xanthene, acridine, thiazole, two or more conjugated aromatic groups and/or two or more conjugated heterocyclic groups;A = linking moiety O, N or S;B = alkyleneoxy or alkoxy groups containing from 1-8C;k = 0 or 1;n = 1 - 100;m = 1 or 2;x = 1 - 5; andR1 = H, 1-6C alkyl, 1-8C alkoxy. EXAMPLE - Liquitint (RTM; red dye) was also found to be stable at 80degreesC in 50% ethylene glycol+50% de-ionized water (all as vol.%). A test was done by dissolving Liquitint (20 ppm) into 50% ethylene glycol+50% de-ionized water solution (v/v). The solution was separated into two parts in two clean beakers. One was heated at 80degreesC for 45 minutes. The conductivity of the two solutions before and after the heating was recorded. There was no noticeable change in the solutions. The conductivity of the solution showed essentially no change before and after heating (Blank and before heating at 80degreesC: 0.45 muS/cm; kept at 80degreesC for 45 minutes and cooled down to room temperature: 0.48 muS/cm).