Water Pollution/Waste Water Organics

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PE1274 Acid Compounds - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1268 Base/Neutrals Compounds 2A - WP Proficiency Testing Material
PE1171 Base/Neutrals Compounds 2B - WP Proficiency Testing Material
PE1608 BTEX in Water - AK - PT Proficiency Testing Material
PE1006 Carbamates in Water - WP Proficiency Testing Material
PE1092 Chlordane (Total) - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1373 Dioxin in Water - WS Proficiency Testing Material
PE1102 Dioxins and Furans in water by 8280 - PT Proficiency Testing Material
PE1295 Dioxins in Water - WP Proficiency Testing Material
PE1435 Diquat/Glyphosate/Paraquat - WS Proficiency Testing Material
PE1380 Formaldehyde in Water - PT Proficiency Testing Material
PE1124 Herbicides - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1151 Herbicides 2A - WP Proficiency Testing Material
PE1139 Herbicides 2B - WP Proficiency Testing Material
PE1321 Low Level Pesticides 1 - PT Proficiency Testing Material
PE1491 Low Level Pesticides 2 - PT Proficiency Testing Material
PE1543 Methanol in Water - PT Proficiency Testing Material
PE1011 Nitrogen Pesticides - WP Proficiency Testing Material
PE1040 Nitrosamines/Nitroaromatics - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1377 Organophosphorus Pesticides (Low Level) - PT Proficiency Testing Material
PE1118 Organophosphorus Pesticides - WI - WP Proficiency Testing Material
PE1161 Organophosphorus Pesticides - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1265 Oxygenates - WP Proficiency Testing Material
PE1223 PAHs (Low Level) - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1173 PAHs - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1398 PBDE′s in water - PT Proficiency Testing Material
PE1116 PCB Congeners in Water - WP Proficiency Testing Material
PE1275 PCBs in Transformer Oil - WP Proficiency Testing Material, 1g Sample
PE1033 PCBs in Water - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1280 Pesticides 1 - WP Proficiency Testing Material, 1 mL for dilution up to 1L
PE1201 Pesticides 2 - WP Proficiency Testing Material, 1 mL for dilution to 1L
PE1412 Phthalates - PT Proficiency Testing Material
PE1122 Pyrethroids in Waste Water - WP Proficiency Testing Material
PE1461 Solvents in Water - PT Proficiency Testing Material
PE1094 Toxaphene - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1619 TPH in Water (high level) Proficiency Testing Material
PE1799 TPH in Water (low level) Proficiency Testing Material
PE1212 Triazine Pesticides - WP Proficiency Testing Material
PE1322 Trichlorobenzenes in Water - WP Proficiency Testing Material
PE1250 Volatile Organic Compounds 1 - WP Proficiency Testing Material, Concentrate for dilution to 100 mL