This reagent is generally a mixture of the ortho, meta, and para isomers and may contain some Ethylbenzene.ASSAY(GC) >= 98.5%COLOR APHA <= 10COPPER (Cu) <= 0.1ppm EVAPORATION RESIDUE<= 0.002%HEAVY METALS (as Pb) <= 0.1 ppm IDENTIFICATION PASSES TEST IRON (Fe) <= 0.1 ppmNICKEL (Ni) <= 0.1 ppmSILVER (Ag) <= 0.1 ppmSUBSTANCES DARKENED BY H2SO4 PASSES TESTSULFUR COMPOUNDS <= 0.003%WATER (H2O) <= 0.05%
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