EPA Method 525 Internals & Surrogates Back Catalog number: 91161 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4270-1ML p-Xylene Impurity Standard with Internal Standards 11 Analytes each Wt.% as listed; Units: 1x1mL, 5x1mL + ISTD, neat Chiron No. Name Wt. % Name Wt. % 1299.5 n-Pentane 0.15 1265.8 p-Xylene 98.65 1242.8 n-Octane 0.15 1266.8m-Xylene 0.15 Price on request 71744 5-(Hydroxymethyl)furfural Price on request S-4043-100-10ME Methanol QC Reference Mixture I 4 Analytes, each 100 ppm dissolved in 99.9 % methanol; units: 1x10mL, 10x10mL Chiron No. Name Chiron No. Name 2270.3 Acetone 1382.2 Ethanol 1371.4 2-Butanone 1320.3 Price on request