System suitability test kit (35 mL each) for combustion based TOC systems, consisting of: preparation water, 0.5 mg/L C sucrose (USP) and 0.5 mg/L C 1,4-benzoquinone (USP). Used for multi N/C pharma HT and multi N/C 3100 pharma for SST test according OQ protocol. System suitability test kit (35 mL each) for combustion based TOC systems, consisting of: preparation water, 0.5 mg/L C sucrose (USP) and 0.5 mg/L C 1,4-benzoquinone (USP). Used for multi N/C pharma HT and multi N/C 3100 pharma for SST test according OQ protocol.