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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 />

310 <strong>of</strong> 391<br />

Standard Method /<br />

Reference Standard<br />

Chloride<br />

Titrimetry<br />

(APHA 4500Cl B)<br />

Color<br />

Visual (APHA 2120B)<br />

Spectrophotometry (APHA2120C)<br />

Minerals AAS (APHA 3111B)<br />

Chromium VI<br />

Spectrophotometry (APHA 3500Cr<br />

B)<br />

Mercury<br />

Cold Vapor AAS<br />

(APHA 3112 B)<br />

Nitrate Spectrophotometry ASTM D992.71<br />

Nitrite<br />

Spectrophotometry (APHA 4500<br />

NO2 B)<br />

Phosphate<br />

Spectrophotometry (APHA 4500P<br />

D)<br />

Sulfate<br />

Spectrophotometry (APHA<br />

4500SO4 E)<br />

Turbidity<br />

Nephelometry<br />

(APHA 2130 B)<br />

.04 Waters for industrial and<br />

steam raising purposes<br />

Hardness, Total and Calcium<br />

Titrimetry<br />

(APHA 2340 C)<br />

Alkalinity Titrimetry (APHA2320B)<br />

Silica<br />

Spectrophotometry (APHA<br />

4500SiO2 C)<br />

.05 Sewage<br />

Chemical Oxygen Demand<br />

Titrimetry<br />

.06 Industrial W<strong>as</strong>tes<br />

(COD)<br />

(APHA5220B)<br />

.07 Saline Waters<br />

Biochemical Oxygen Demand<br />

Titrimetry<br />

.08 Bore Waters<br />

(BOD)<br />

(APHA5210B)<br />

.09 Waters for Aquaculture<br />

.11 Other waters<br />

Total Suspended Solids (TSS)<br />

Gravimetry<br />

(APHA 2540 D)<br />

Total Dissolved Solids (TDS)<br />

Gravimetry<br />

(APHA 2540 C)<br />

Settleable Solids (SS)<br />

Imh<strong>of</strong>f Cone<br />

(APHA 2540F)<br />

pH<br />

Electrometry<br />

(APHA 4500H B)<br />

Color<br />

Visual (APHA 2120B)<br />

Spectrophotometry (APHA2120C)<br />

Oil & Gre<strong>as</strong>e (O&G)<br />

Pet Ether Extraction<br />

(APHA 5520B)<br />

Al, Ba, Co, Cu, Fe, K, Mg, Mn,<br />

AAS<br />

Na, Sn, Zn & other metals<br />

APHA 3111B<br />

Heavy Metals<br />

AAS<br />

Pb, Cd, Cr<br />

APHA 3111B<br />

Hg<br />

APHA 3112B<br />

As<br />

APHA 3114B<br />

Cr VI<br />

Spectrophotometry (APHA 3500Cr<br />

B)<br />

Surfactants Spectrophotometry (APHA 5540C)<br />

Phenols<br />

Chlor<strong>of</strong>orm Extraction (APHA<br />

5530C)<br />

PCB (1254) GC (APHA 6431B)<br />

.10 Sampling APHA<br />

2.35 Biological Monitoring<br />

.02 Elements Lead in Blood NIOSH 8003<br />

2.36 Constituents <strong>of</strong> the Environment<br />

.01 Waters other than Saline Al, Ba, Co, Cu, Fe,<br />

.02 Saline Waters K, Mg, Mn, Na, Sn,<br />

.04 Soils Zn & other metals<br />

AAS (APHA 3111B)<br />

.05 Sediments Heavy Metals<br />

.06 Sludges Pb, Cd, Cr<br />

.07 Solid W<strong>as</strong>tes Hg, As APHA 3112B, 3114B<br />

.08 Leachate Procedures<br />

Cr VI<br />

Spectrophotometry (APHA 3500Cr<br />

B)

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