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

Products/
Class of Test
Measured
quantities/
instrument
Range to be calibrated
274 of 391
Best
measurement
capability
expressed as an
uncertainty ()*
100 g ± 0.33 mg
OIML Class M2, 200 g ± 1.4 mg
M3 500 g ± 87 mg
Mass Standards 1 kg ± 81 mg
2 kg ± 0.13 g
5 kg ± 1.2 g
10 kg ± 1.2 g
OIML Class M3 20 kg ± 1.3 g
Mass Standards
5.11 Weighing Devices
25 kg ± 1.4 g
.01 Precision Precision
0 to 1 g ± 0.015 mg to
Laboratory Laboratory
0.026 mg
Balances Balances 1 g to 20 g ± 0.026 mg to
0.04 mg
20 g to 180 g ± 0.04 mg to 0.26
mg
Standard Method/
Reference
Standard
Attached CD-WI-025
(Class F1, F2, M2,
M3 Weights)
In-House/On-Site
Calibration
180 g to 480 g ± 0.26 mg to 1.2
mg
480 g to 1 200 g ± 1.2 mg to 12
mg
1 200 g to 1 800 g ± 12 mg to 37 mg
1.8 kg to 3 kg ± 37 mg to 0.10 g
.02 Industrial Industrial 0 to 1 800 g ± 12 mg to 37 mg Attached CD-WI-025
Balances Balance 1 800 g to 5 400 g ± 37 mg to 0.07 g (Class F1, F2, M2,
5.4 kg to 15 kg ± 0.07 g to 0.14 g M3 Weights)
15 kg to 30 kg ± 0.14 g to 0.82 g In-House/On-Site
30 kg to 60 kg ± 0.82 g to 2.9 g Calibration
60 kg to 100 kg ± 2.9 g to 11 g
5.20 Pressure and Vacuum Measuring Devices
.01 Pressure Pressure Gauges 0 to 60 psi 0.18 psi Non-Std. Method
Gauges 60. to 180 psi 0.52 psi CD-WI-018
180 to 260 psi 0.75 psi On-Site Calibration
260 to 380 psi 1.1 psi
380 to 500 psi 1.4 psi
500 to 600 psi 1.7 psi
500 to 1 000 psi 3.2 psi
1 000 to 2 000 psi 5.8 psi
2 000 to 5 000 psi 14 psi
.02 Vacuum
Gauges
5 000 to 10 000 psi 28 psi
Vacuum Gauges 0 to 30 inHg
0.32 inHg
Non-Std. Method
CD-WI-018
On-Site Calibration
5.34 Electrical Instrument Calibrators
.01 DC Voltage DC Voltage
Calibrators /
Sources
200 mV to 200 V 0.000 57 V
Non Std. Method
CD-WI-040
.03 DC Current DC Current
Calibrators /
Sources
1 uA to 1 A
0.000 071 A
.05 Resistance Resistance
Calibrators /
Sources
20 Ω to 200 MΩ 0.000 059 MΩ
Non Std. Method
CD-WI-040
.08 Frequency Frequency
Sources
20 Hz to 40 kHz 0.000 58 kHz
5.35 Indicating and recording instrument (6 ½ digit Digital Multimeter)
.01 DC voltmeters DC Voltmeters 0 to 100 mV 0.002 mV Non-Std. Method
100 mV to 1 V 0.000 008 4V CD-WI-006 /
1 V to 10 V 0.000 06 V CD-WI-007 /
10 V to 100 V 0.000 78 V CD-WI-008 /
100 V to 1000 V 0.009 8 V CD-WI-009 /
.02 AC voltmeters AC Voltmeters 0 to 10 mV @ 1 kHz 0.004 3 mV CD-WI-010 /
0 to 100 mV @ 1 kHz 0.029 mV CD-WI-026