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PAO Accredited Laboratories (as of Dec. 2012) - DTI

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Products/<br />

Cl<strong>as</strong>s <strong>of</strong> Test<br />

Specific tests or<br />

Me<strong>as</strong>urements<br />

Page 106 <strong>of</strong> 391<br />

Standard Method/<br />

Reference Standard<br />

.04 Antibiotics Chloramphenicol<br />

Nitr<strong>of</strong>uran<br />

Solvent Extraction/GC/HPLC<br />

.11 Fertilizers and liming materials<br />

(Synthetic/Organic)<br />

Elemental/Minerals<br />

(Micro/Macronutrients)<br />

AAS/ICPS/ICPMS<br />

Heavy Metals (Hg,Pb,Cd,As,etc.) Microwave<br />

Digestion/ICPS/ICPMS<br />

Nitrogen Kjeldahl/Titrimetric<br />

Biuret Colorimetric/Spectrophotometric<br />

Moisture Gravimetric<br />

.12 Soil Elemental/Minerals<br />

(Micro/Macronutrients)<br />

AAS/ICPS/ICPMS<br />

Heavy Metals (Hg,Pb,Cd,As,etc.) Microwave<br />

Digestion/ICPS/ICPMS<br />

Nitrogen Kjeldahl/Titrimetric<br />

Soil Reaction (pH0 Potentiometric<br />

Moisture Gravimetric<br />

Electrical Conductivity Conductimetric<br />

Ash Gravimetric<br />

Organic Matter Walkey Black/Titrimetric<br />

Available Phosporus Colorimetric<br />

Cation Exchange Capacity Ammonium Acetate/Distillation<br />

Pesticide Residue GPC/GC/GCMS/HPLC<br />

.13 Plant tissue Elemental/Minerals<br />

(Micro/Macronutrients)<br />

AAS/ICPS/ICPMS<br />

Heavy Metals (Hg,Pb,Cd,As,etc.) Microwave<br />

Digestion/ICPS/ICPMS<br />

Nitrogen Kjeldahl/Titrimetric<br />

Soil Reaction (pH0 Potentiometric<br />

Moisture Gravimetric<br />

Electrical Conductivity Conductimetric<br />

Ash Gravimetric<br />

Phosporus Colorimetric<br />

2.33 Waters<br />

Pesticide Residue GPC/GC/GCMS/HPLC<br />

.01 Water potable and Elemental/Minerals (N, Cl, etc) Kjeldahl/ICPS/ICPMS/HPLC<br />

domestic purposes Heavy Metals (Hg,Pb,Cd,As,etc.) Microwave<br />

Digestion/ICPS/ICPMS<br />

.02 Drinking waters Hardness Titrimetric<br />

.03 Water for irrigation and Chlorides/Sulfates/Anions HPLC/IC/Titrimetric/Turbidimetric<br />

Stock Silica Colorimetric<br />

.04 Water for industrial and BOD 5 Day BOD<br />

steam-raising purposes Nitrogen Kjeldahl/Titrimetric<br />

(Boiler, Cooling) Conductivity Conductimetric<br />

.07 Saline waters Total Dissolved Solids Gravimetric<br />

Pesticide Residue GPC/GC/GCMS/HPLC<br />

Total Suspended Solid Gravimetric<br />

pH Potentiometric<br />

Settleable Solids Imh<strong>of</strong>f Cone Method<br />

Alkalinity Titrimetric<br />

.06 Industrial w<strong>as</strong>tes BOD 5 Day BOD<br />

COD Photometric/Open Reflux<br />

Total Dissolved Solids Gravimetric<br />

Total Suspended Solid Gravimetric<br />

pH Potentiometric<br />

Alkalinity Titrimetric<br />

Heavy Metals (Hg,Pb,Cd,As,etc.) Microwave<br />

Digestion/ICPS/ICPMS<br />

Legends to Reference Standards:<br />

AOAC - Association <strong>of</strong> Official Analytical Chemists

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