Endosulfan (alpha + beta), 10µg/mL in IO, 10ml

Carbofuran-3-keto, 10mg

ISO 8165-1 Internal Control Stock Standard Solution 2 2,5-Dibromophenol [28165-52-8] 2470,6

Total Organic Carbon (C), 1000µg/mL in 1% HCl/Water, 100ml