Water Pollution/Waste Water Inorganics

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PE3269 Acidity - Whole Volume - WP Proficiency Testing Material
PE1269 Acidity - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1076 Alkalinity - WP Proficiency Testing Material
PE3147 Amenable Cyanide - Whole Volume - WP Proficiency Testing Material
PE1144 Anionic Surfactants (MBAS) - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE3060 Anions - Whole Volume - WP Proficiency Testing Material
PE1060 Anions - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1066 Boron (Colorimetric Method) - WP Proficiency Testing Material
PE1188 Bromide - WP Proficiency Testing Material
PE10025 Chlorine in Water - Field PT Proficiency Testing Material
PE3088 Chromium VI - Whole Volume - WP Proficiency Testing Material
PE1088 Chromium VI - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE3126 Color - Whole Volume - WP Proficiency Testing Material
PE1126 Color - WP Proficiency Testing Material, Concentrate for dilution to 100 mL
PE3051 Complex Nutrients - Whole Volume - WP Proficiency Testing Material
PE1051 Complex Nutrients - WP Proficiency Testing Material
PE3054 Cyanide - Whole Volume - WP Proficiency Testing Material
PE3130 Demand - Whole Volume - WP Proficiency Testing Material
PE1077 Dissolved Oxygen - WP Proficiency Testing Material
PE1104 Ferrous Iron in Water - WP Proficiency Testing Material
PE1183 Fixed Solids and Bicarbonate - WP Proficiency Testing Material
PE3162 Fluoride in Water - PT Proficiency Testing Material
PE3074 Hardness/TSS - Whole Volume - WP Proficiency Testing Material
PE1047 Iodide in Water - WP Proficiency Testing Material
PE3144 MBAS - Whole Volume - WP Proficiency Testing Material
PE1205 Mercury (Low Level) - WP Proficiency Testing Material
PE1129 Mercury - WP Proficiency Testing Material
PE1100 Methyl Mercury in Water Proficiency Testing Material
PE3041 Minerals - Whole Volume - WP Proficiency Testing Material
PE1041 Minerals - WP Concentrate for dilution to 1L, Proficiency Testing Material
PE1153 Nitrite - WP Proficiency Testing Material, Concentrate for dilution to 1 L
PE1197 Non Ionic Surfactants in water - PT Proficiency Testing Material
PE1133 Odor - Drinking Water PT Proficiency Testing Material
PE3083 Oil and Grease - Whole Volume - WP Proficiency Testing Material
PE1083 Oil and Grease - WP Proficiency Testing Material, Concentrate for dilution to 1 L
PE1263 Oxidation - Reduction - WP Proficiency Testing Material
PE1033 PCBs in Water - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1178 Perchlorate - WP Proficiency Testing Material
PE1002 Pesticides Kit - Waste Water PT Proficiency Testing Material, Includes: Pesticides 1 & Pesticide 2
PE10026 pH - Field PT Proficiency Testing Material
PE1210 pH in Water- WP Proficiency Testing Material, Ready to use standard
PE3119 Residue/pH - Whole Volume - WP Proficiency Testing Material
PE1050 Residue - WP Proficiency Testing Material
PE1090 Salinity - WP Proficiency Testing Material
PE1194 Settleable Solids - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE3078 Silica - Whole Volume - WP Proficiency Testing Material
PE1078 Silica - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE3198 Simple Nutrients - Whole Volume - WP Proficiency Testing Material
PE1195 Simple Nutrients - WP Proficiency Testing Material, Concentrate for dilution to 1 L
PE1034 Sulfide (Total and Soluble) - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE3034 Sulfide - Whole Volume - WP Proficiency Testing Material
PE1285 Sulfur in Water - WP Proficiency Testing Material
PE1097 Surfactants - Cationic - WP Proficiency Testing Material
PE3073 Tannin and Lignin - Whole Volume - WP Proficiency Testing Material
PE1073 Tannin and Lignin - WP Proficiency Testing Material
PE1135 Taste - Drinking Water PT Proficiency Testing Material
PE1149 Thiocyanate in Water - WP Proficiency Testing Material
PE1154 Titanium and Tin - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1054 Total Cyanide - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1070 Total Organic Halides (TOX) - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1134 Total Phenolics - WP Proficiency Testing Material, (Concentrate for dilution to 1L)
PE1152 Total Residual Chlorine (Low Level) - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1065 Total Residual Chlorine - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1038 Trace Metals (Dissolved) PT - 1 Proficiency Testing Material
PE1005 Trace Metals (Dissolved) PT - 2 Proficiency Testing Material
PE3163 Trace Metals 1 in Seawater - Whole Volume - WP Proficiency Testing Material
PE3132 Trace Metals 1 - Whole Volume - WP Proficiency Testing Material
PE3053 Trace Metals 2 - Whole Volume - WP Proficiency Testing Material
PE1132 Trace Metals 1 - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1052 Trace Metals 2 - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE3081 Turbidity - Whole Volume - WP Proficiency Testing Material
PE1081 Turbidity - WP Proficiency Testing Material, Concentrate for dilution to 1L
PE1209 Uranium - WP Proficiency Testing Material
PE1282 Volatile Residue/Fixed Solids - WP Proficiency Testing Material
PE1091 Volatile Residue - WP Proficiency Testing Material, Concentrate for dilution to 1L