Methylene ChlorideSodium HydroxideHydrocarbons, ChlorinatedSolventsMethylene BlueCausticsChloridesHairCarboxyhemoglobinAlkaliesUnited States Occupational Safety and Health AdministrationBurns, ChemicalCalcium HydroxideAluminum HydroxideEye BurnsGas PoisoningHydroxidesGas Chromatography-Mass SpectrometryChromatography, High Pressure LiquidHydrogen-Ion ConcentrationChloride ChannelsSodiumOccupational ExposureAir Pollutants, OccupationalAmmonium HydroxideMagnesium HydroxideEnvironmental Exposure