PCB Congeners in Water - WP, Proficiency Testing Material
PAHs - WP, Proficiency Testing Material, Concentrate for dilution to 1L
Dioxins in Water - WP, Proficiency Testing Material
Total Organic Carbon (TOC) - WS, Proficiency Testing Material
Chromium VI - WS, Proficiency Testing Material
Trace Metals 2 - WS , Proficiency Testing Material
TPH in Water (low level), Proficiency Testing Material
Demand - Whole Volume - WP, Proficiency Testing Material
Trace Metals 1 Whole Volume - WP, Proficiency Testing Material
Penicillin G sodium salt,~1650 U/mg
Daphnia magna, 48-hr Acute, nonrenewal, 25C, MHSF, Proficiency Testing Material
a-Solanine,phyproof Reference Substance














