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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 />

.01 Precision<br />

resistor,<br />

resistance<br />

boxes and<br />

conductance<br />

Me<strong>as</strong>ured<br />

quantities/<br />

instrument<br />

Range to be<br />

calibrated<br />

301 <strong>of</strong> 391<br />

Best<br />

me<strong>as</strong>urement<br />

capability<br />

expressed <strong>as</strong> an<br />

uncertainty ()*<br />

Standard Method/<br />

Reference Standard<br />

Resistance boxes 0 to 100MΩ 0.01% In-House / On-Site<br />

Calibration<br />

SSS-CP-034<br />

(By Direct Comparison)<br />

boxes<br />

5.34 Instrument calibrators<br />

.01 D.C. voltage DC voltage Up to 1000V ±0.0004% In-House / On-Site<br />

(source)<br />

Calibration<br />

Up to 1000V ±0.00077%<br />

SSS-CP-046<br />

(me<strong>as</strong>ure)<br />

(By Direct Comparison)<br />

.02 A.C. voltage AC voltage Up to 700V / 1000V ±0.0023% / ±0.02% In-House / On-Site<br />

(source)<br />

Calibration<br />

Up to 1000V<br />

±0.004% SSS-CP-046<br />

(me<strong>as</strong>ure)<br />

(By Direct Comparison)<br />

.03 D.C. current DC current Up to 50A (source) ±0.03%<br />

Up to 20A (me<strong>as</strong>ure) ±0.011%<br />

.04 A.C. current AC current Up to 50A (source) ±0.1%<br />

Up to 20A (me<strong>as</strong>ure) ±0.1%<br />

.05 Resistance Resistance Up to 1GΩ (source) ±0.06%<br />

Up to 290MΩ<br />

(me<strong>as</strong>ure)<br />

±0.15%<br />

.08 Others DC Power Supply DC Volt up to 1000V 0.001% In-House / On-Site<br />

Calibration<br />

DC Current 50A 0.03% SSS-CP-030<br />

(By Direct Comparison)<br />

5.35 Indicating and recording instruments (4 ½ digit Digital Multimeter)<br />

.01 D.C.<br />

voltmeters<br />

DC voltmeters Up to 1000 V In-House / On-Site<br />

3 ½ Digit 0.06% Calibration<br />

4 ½ Digit 0.01% SSS-CP-018, 042<br />

(By Direct Comparison)<br />

.02 A.C.<br />

voltmeters<br />

AC voltmeters Up to 1000 V In-House / On-Site<br />

3 ½ Digit 0.40% Calibration<br />

4 ½ Digit 0.39% SSS-CP-018, 043<br />

(By Direct Comparison)<br />

.03 D.C. ammeters DC ammeters Up to 20 A In-House / On-Site<br />

3 ½ Digit 0.08% Calibration<br />

4 ½ Digit 0.06% SSS-CP-018, 019<br />

(By Direct Comparison)<br />

.04 A.C. ammeters AC ammeters Up to 20 A In-House / On-Site<br />

3 ½ Digit 0.93% Calibration<br />

4 ½ Digit 0.93% SSS-CP-018, 020<br />

(By Direct Comparison)<br />

.05 Wattmeters DC Wattmeter Up to 10 kW 0.06% In-House / On-Site<br />

Calibration<br />

AC Wattmeter Up to 10 kW 0.99% SSS-CP-021<br />

(By direct comparison)<br />

.09 Ohmmeters Ohmmeters UP TO 100MΩ In-House / On-Site<br />

3 ½ Digit 0.04% Calibration<br />

4 ½ Digit 0.04% SSS-CP-018, 025<br />

(By Direct Comparison)<br />

.10 LCR meters LCR meters L = 1 mh to 1 H 0.06% In-House / On-Site<br />

C = 1 ηF to 1 μF 0.06% Calibration<br />

R = 1 mΩ to 1 MΩ 0.02% SSS-CP-023<br />

(By direct comparison)<br />

.17 Other<br />

Wristrap, footstrap Up to 100MΩ 0.01% In-House / On-Site<br />

instruments<br />

Calibration<br />

SSS-CP-024<br />

(By direct comparison)

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