solution DTX2 in methanol at a concentration of 9.7 µM.  0.5 mL/ampoule  CRM-hYTX is a certified calibration solution for the  determination of homo-yessotoxin (hYTX) by chemical  analysis methods. Each ampoule contains ~0.5 mL of  solution of hYTX in methanol at a concentration of  5.0 μM. 0.5 mL/ampoule  2  CRM-OA-c is a certified calibration solution for the  determination of okadaic acid (OA) by chemical analysis  methods. Each ampoule contains ~0.5 mL of a solution of  OA in methanol at a concentration of 17 µM. Okadaic  acid (OA) is one of the principal toxins associated with  Diarrhetic Shellfish Poisoning (DSP).0.5 mL/ampoule  1  CRM-PTX2-b is a certified calibration solution for the  determination of pectenotoxin-2 (PTX2) by chemical  analysis methods. Each ampoule contains ~0.5 mL of a  solution of PTX2 in methanol at a concentration of  5.13 μM. PTX2 is a member of the pectenotoxin group of  polyether toxins. 0.5 mL/ampoule  1  CRM-YTX-b is a certified calibration solution for the  determination of yessotoxin (YTX) by chemical analysis  methods. Each ampoule contains ~0.5 mL of solution  YTX at a concentration of 4.9 μM in methanol.  0.5 mL/ampoule  3  CRM-DA-f is a certified calibration solution for domoic  acid (DA), the toxin responsible for Amnesic Shellfish  Poisoning (ASP). Each ampoule contains ~0.5 mL of  solution with 327 µM DA in acetonitrile/water (1:19, v/v)  at a concentration suitable for calibration of liquid  chromatography experiments and for spiking shellfish  control samples for recovery  experiments.0.5 mL/ampoule  3  CRM-dcGTX2&3-b is a certified calibration solution  designed for use in chemical analysis methods. Each  ampoule contains ~0.5 mL solution of a mixture of  decarbamoylgonyautoxin-2 at a concentration of 116 µM  and decarbamoylgonyautoxin-3 at a concentration of  1  August 2020 EN-c4f_annexiitechspeciiitechoffer_en.docx  EN-c4f_annexiitechspeciiitechoffer_en.docx Page 21 of 76 