System Performance Standard, in Heptane, 1x5ml Back Catalog number: ASTM-P-0135 Availability: In the manufacturer's stock Price on request - + Recommended S-4219-2K-MEX10 BTEX Mixture 3 S-4219-2K-5ME 7 Analytes, each 2000 µg/mL in methanol; units:1x1 mL, 1x5mL 1300.6 Benzene [71-43-2] 1267.8 o-Xylene [95-47-6] 1264.7 Toluene [108-88-2] 1266.8m-Xylene [108-38-3] 1268.8 Price on request 12159.41-12.4-MX Nodularin-R,12.4 µmol/L,water:MeOH=1:1,1mL, Price on request 11857.10-K-MEX5 [Methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl acrylate,1000 µg/mL ,MeOH,1mL, Price on request