CLAS Certificate Number 2000-03

Dimensional

Measured Quantity & Range or Instrument	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Gauge Block, length: Steel, Rectangular and Square
Inch, up to 4 inches	± ( 0.5 + 1.85L ) µinch or ± 2.5 µinch, whichever greater (Note: L in inches)	I	GGG-G-15C, ASME B89.1.9.   Limited to calibrations performed by comparison with individual inch-sized steel gauge blocks covering the range from 0.05 inch through 20 inches (or mm equivalent) where the reference standards have been calibrated and traceable to the International System of Units (SI).
Inch, 5 to 20 inches	± ( 1.5 + 1.3L ) µinch (Note: L in inches)
Metric, up to 100 mm	± ( 0.013 + 0.002L ) µm or ± 0.064 µm, whichever greater (Note: L in mm)
Metric, 125 to 500 mm	± ( 0.16 + 0.001L ) µm (Note: L in mm)
Variation in length of gauge blocks (parallelism):	± 1 µinch or ± 0.025 µm		This measured quantity is commonly known as parallelism of gauge blocks.
Optical Flatness
Measurement of optical flatness of gauge blocks and 4 inch diameter optical flats	± 3 µinch	II	Limited to the measurement of optical flatness of gauge blocks and 4 inch diameter optical flats by the use of a reference optical flat and monochromatic light source.
Ring gauge cylindrical, diameter:
Inch, up to 12 inches	± ( 10 + 5.2L ) µin (Note: L in inches)	I	ASME B89.1.6M. Laboratory primary gauge blocks are used as reference standards for plain ring measurement.  Single gauge blocks wrung with "end caps" are used as reference length standards; uncertainties are based on a one to one size relationship between the device under measurement and the gauge block reference standard.
Metric, up to 305 mm	± ( 0.25 + 0.0052L ) µm (Note: L in mm)
Plug gauge cylindrical, diameter:
Inch, up to 12 inches	± ( 5 + 5.2L ) µin (Note: L in inches)	I	ASME B89.1.5. Laboratory primary gauge blocks are used as reference standards for plug gauge measurement. Uncertainties are based on a one to one size relationship between the device under measurement and the gauge block reference standard.
Metric, up to 305 mm	± ( 0.12 + 0.0052L ) µm (Note: L in mm)
Thread wire, diameter:
Inch, up to 1 inch	± 10 µin	I	ASME B89.1.17.
Metric, up to 25 mm	± 0.25 µm
Caliper: Outside
Inch, up to 12 inches	± 310 µin	II III	Federal Standard GGG-C-111
Inch, over 12 to 24 inches	± 450 µin
Inch, over 24 to 40 inches	± 640 µin
Metric, up to 300 mm	± 8 µm
Metric, from 300 to 600 mm	± 12 µm
Metric, from 600 to 1000 mm	± 16 µm
Caliper: Inside
Inch, up to 12 inches	± 310 µin	II III	Federal Standard GGG-C-111
Metric, up to 300 mm	± 8 µm
Caliper: Depth
Inch, up to 12 inches	± 330 µin	II III	Federal Standard GGG-C-111
Metric, up to 300 mm	± 9 µm
Dial and Test Indicators:
Inch, 0.001 inch resolution	± 140 µin	II III	ASME B89.1.10M
Inch, 0.0001 inch resolution	± 48 µin
Inch, 0.00002 inch resolution	± 16 µin
Metric, 0.02 mm resolution	± 4 µm
Metric, 0.002 mm resolution	± 1.2 µm
Metric, 0.0005 mm resolution	± 0.4 µm
Micrometers: Outside
Inch, up to 6 in	± ( 34 + 3.1L ) µin (Note: L in inches)	II III	Federal Specification GGG-C-105, ASME B89.1.13
Over 6 to 36 in	± ( 50 + 7L ) µin (Note: L in inches)
Metric, up to 150 mm	± ( 0.86 + 0.0031L ) µm (Note: L in mm)
Over 150 to 900 mm	± ( 1.27 + 0.007L ) µm (Note: L in mm)
Micrometers: Inside
Inch, head travel of 1 in	± 60 µin	II III	Federal Specification GGG-C-105, ASME B89.1.13
Inch, up to 36 in	± ( 40 + 6L ) µin (Note: L in inches)
Metric, head travel of 25.4 mm	± 1.5 µm
Metric, up to 900 mm	± ( 1.0 + 0.006L ) µm (Note: L in mm)
Micrometer head - Spindle displacement:
up to 1 inch	± 10 µinch	II
up to 25.4 mm	± 0.26 µm
Optical comparator:
lens magnification	< 0.1 %	III
horizontal encoder with digital readout	± 100 µin
vertical encoder with digital readout	± 100 µin
angle	± 2.2 minutes of arc
Micrometer setting standards:
Inch, up to 36 inches	± ( 30 + 4L ) µin (Note: L in inches)	II	Federal Specification GGG-C-105, ASME B89.1.13
over 36 up to 80 inches	± ( 200 + 5L ) µin (Note: L in inches)
Metric, up to 900 mm	± ( 0.8 + 0.004L ) µm (Note: L in mm)
over 900 up to 2000 mm	± ( 5 + 0.005L ) µm (Note: L in mm)
Rules, measuring
Inch, length up to 48 inches	± ( 30 + 8L ) µin (Note: L in inches)	II	Federal Specification GGG-R-791H
Metric, length up to 1000 mm	± ( 0.8 + 0.008L ) µm (Note: L in mm)
Surface Plate Flatness
up to 20 foot diagonal	± (43+2D) µinch, where, D is the length of the diagonal in inches.	III	Federal Specification GGG-P-463 (using a HP 5529A Laser Interferometer)
Thread plug gauge and thread setting plug gauge, 60 degree: Pitch diameter (measured over thread wires)
Inch, up to 1.5 inches	± 100 µin	II	ANSI/ASME B1.2, ANSI/ASME B1.6 In normal commercial gauging practice, the pitch diameter of a thread plug gauge is determined by measuring the diameter over thread wires inserted in the thread groove on opposite sides of the axis. The preferred term for this measurement is 'thread groove diameter'. Other names for this measurement are 'simple effective diameter' and 'simple pitch diameter'.
over 1.5 up to 6 inches	± 200 µin
over 6 up to 12 inches	± 300 µin
Metric, up to 35 mm	± 2.5 µm
over 35 up to 150 mm	± 5.1 µm
over 150 up to 300 mm	± 7.6 µm
Thread plug gauge and thread setting plug gauge, 60 degree: Major diameter
Inch, up to 12 inches	± ( 10 + 6L ) µin (Note: L in inches)	II	ANSI/ASME B1.2, ANSI/ASME B1.6
Metric, to 300 mm	± ( 0.25 + 0.006L ) µm (Note: L in 'millimetres')
Thread ring gauge, solid, 60 degree parallel: Pitch diameter (measured over balls)
Inch, up to 5.5 inches	± 90 µin	II	ANSI/ASME B1.2, ANSI/ASME B1.6 In normal commercial gauging practice, the pitch diameter of a thread plug gauge is determined by measuring the diameter over thread wires inserted in the thread groove on opposite sides of the axis. The preferred term for this measurement is 'thread groove diameter'. Other names for this measurement are 'simple effective diameter' and 'simple pitch diameter'.
Metric, up to 139 mm	± 2.3 µm
Thread ring gauge, adjustable, 60 degree parallel:
Set to thread setting plug Inch, up to 12 inches Metric, up to 305 mm	The adjustable thread ring gauge is set to the functional diameter of the thread setting plug.	II	ANSI/ASME B1.2, ANSI/ASME B1.6
Height gauges
Inch, up to 22 inches	600 µin	II	Comparison against a reference bar.
Inch, 22 inches to 50 inches	700 µin
Metric, up to 560 mm	15 µm
Metric 560 mm to 1270 mm	18 µm

Force

Measured Quantity & Range or Instrument	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Torque transducers: Clockwise and counter clockwise
50 lb•in to 250 lb•ft	± 0.25 % of reading	II	Federal Specification GGG-W-686
65 N•m to 339 N•m	± 0.25 % of reading
Torque wrenches & screwdrivers: Clockwise and counter clockwise
4.5 oz•in to 600 lb•ft	± 0.5 % of reading	II III	Federal Specification GGG-W-686
0.032 N•m to 813 N•m	± 0.5 % of reading

Pressure

Pressure, Gauges, Controllers, & Transducers

Measured Quantity & Range or Instrument	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Gauge, Pneumatic
Pressure Range (-17, 0.5, 1.0, 10.0, 15.0 30.0, 100.0, 50.0, 250.0, 500,0, 750,0 1,500) psig	± 0.01 % of Full Scale for each range	II & III	Mensor APC 600 Multiple-Range Pressure Controller
Pressure Range -100 to 10,000 kPa	± 0.01 % of Full Scale for each range
0 to 4,500 psig	± 0.01 % of Full Scale	II & III	Mensor 2106-4.5k Pressure Gauge
0 to 31,000 kPa	± 0.01 % of Full Scale
Gauge, Hydraulic
100 to 16,000 psig	± 0.025 % of Reading	I	Budenberg 580HXA Pressure Balance
0 to 4,500 psig	± 0.01 % of Full Scale	I & II	Mensor 2106-4.5k Pressure Gauge
0 to 31,000 kPa	± 0.01 % of Full Scale
Absolute, Pneumatic
Pressure Ranges (0.5, 1.0, 10.0, 15.0,30.0, 50.0, 100,250.0, 500,0, 750,0 1,500) psia	± 0.01 % of Full Scale for each range	II & III	Mensor APC 600 Multiple-Range Pressure Controller
Pressure Range 0 to 70,000 kPa	± 0.01 % of Full Scale for each range	II & III	Mensor APC 600 Pressure Controller Barometric Reference
Barometric Range 758 to 1172 hPa	± 0.01 % of Reading

Hardness

Measured Quantity & Range or Instrument	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Indirect verification of Rockwell Hardness Testers:
HRA, HRBW, HRC, HREW	Governed by the uncertainty of the standardized test block used to perform the indirect verification	II & III	ASTM E18 Standardized Test Blocks per ASTM E18.
Indirect verification of Rockwell Superficial Hardness Testers:
HR15N, HR15TW, HR15YW	Governed by the uncertainty of the standardized test block used to perform the indirect verification	II & III	ASTM E18 Standardized Test Blocks per ASTM E18 .
HR30N, HR30TW
HR45N, HR45TW
Indirect verification of Brinell Hardness Testers:
HBW	Governed by the uncertainty of the standardized test block used to perform the indirect verification	II & III	ASTM E10 Standardized Test Blocks per ASTM E10 .
Indirect verification of Vickers Micro Indentation Hardness Testers:
HV	Governed by the uncertainty of the standardized test block used to perform the indirect verification	II & III	ASTM E384 Standardized Test Blocks per ASTM E384.
Indirect verification of Knoop Micro Indentation Hardness Testers:
HK	Governed by the uncertainty of the standardized test block used to perform the indirect verification	II & III	ASTM E384 Standardized Test Blocks per ASTM E384.

Time and Frequency

Measured Quantity & Range or Instrument	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Frequency
10 MHz	1 part in 10-10	II	For the calibration of the normalized frequency offset averaged over 24 hours of stable frequency sources and measuring devices using a frequency standard and GPS system
0.01 Hz to 2 MHz	2.5 ppm + 5 µHz		For the calibration of frequency measuring devices using a multifunction calibrator. On-site calibration available

Electrical

Measured Quantity & Range or Instrument	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Voltage, DC
0 mV to 220 mV	7.5 µV/V +0.4 µV	II	Generate using a multifunction calibrator. For the calibration of voltage measuring devices. On-site calibration available.
220 mV to 2.2 V	5 µV/V +0.7 µV
2.2 V to 11 V	3.5 µV/V +2.5 µV
11 V to 22 V	3.5 µV/V + 4 µV
22 V to 220 V	5 µV/V + 40 µV
220 V to 1100 V	6.5 µV/V + 400 µV
0 V to 100 mV	5.5 ppm + 0.3 µV		Measure using a digital multimeter. For the calibration of dc voltage generating devices. On-site calibration available.
100 mV to 1 V	4.5 ppm + 0.3 µV
1V to 10 V	4.5 ppm + 0.5 µV
10 V to 100 V	6.5 ppm + 30 µV
100 V to 1000 V	18 ppm + 100 µV
1 kV to 100 kV	0.1 %		Measure using a high voltage divider and digital multimeter. For the calibration of dc voltage generating devices. On-site calibration available.
Current, DC
0 A to 220 µA	40 µA/A + 6 nA	II	Generate using a multifunction calibrator. For the calibration of dc current measuring devices. On-site calibration available.
220 µA to 2.2 mA	35 µA/A + 7 nA
2.2 mA to 22 mA	35 µA/A + 40 nA
22 mA to 220 mA	45 µA/A + 0.7 µA
220 mA to 2.2 A	80 µA/A + 12 µA
2.2 A to 11 A	360 µA/A + 480 µA
11 A to 20 A	0.1 % + 750 µA
0 to 100 nA	30 µA/A + 0.04 nA	II	Measure using a digital multimeter. For the calibration of dc current generating devices. On-site calibration available.
100 nA to 1 μA	20 µA/A + 0.04 nA
1 μA to 10 μA	20 µA/A + 0.1 nA
10 μA to 100 μA	20 µA/A + 0.8 nA
100 μA to 1 mA	20 µA/A + 5 nA
1 mA to 10 mA	20 µA/A + 50 nA
10 mA to 100 mA	35 µA/A + 500 nA
100 mA to 1 A	110 µA/A + 10 μA
10 A to 100 A	100 ppm		Measure using dc shunts and  a digital multimeter.  For the calibration of dc current generating devices.
Resistance
0 Ω to 10.9999 Ω	0.0040 % + 0.001 Ω	II	Generate using a multifunction calibrator. For the calibration of resistance measuring devices. On-site calibration available
11 Ω to 32.999 Ω	0.0030 % + 0.0015 Ω
33 Ω to 109.9999 Ω	0.0028 % + 0.0014 Ω
110 Ω to 1.099999 kΩ	0.0028 % + 0.002 Ω
1.1 kΩ to 3.29999 kΩ	0.0028 % + 0.02 Ω
3.3 kΩ to 10.99999 kΩ	0.0028 % + 0.02 Ω
11 kΩ to 109.9999 kΩ	0.0028 % + 0.2 Ω
110 kΩ to 1.099999 MΩ	0.0032 % + 2 Ω
1.1 MΩ to 3.29999 MΩ	0.0060 % + 30 Ω
3.3 MΩ to 10.99999 MΩ	0.0130 % + 50 Ω
11 MΩ to 32.99999 MΩ	0.025 % + 2.5 kΩ
33 MΩ to 109.9999 MΩ	0.05 % + 3 kΩ
110 MΩ to 329.9999 MΩ	0.3 % + 100 kΩ
330 MΩ to 1100 MΩ	1.5 % + 500 kΩ
1 mΩ to 100 MΩ	10 ppm to 100 ppm	II	Source: For the calibration of resistance measuring devices. On-site calibration available.
1 MΩ to 100 GΩ	100 ppm to 1000 ppm	II	For the calibration of insulation resistance measurement instruments using fixed resistors.
1 mΩ to 10 Ω	0.0015 % + 50 μΩ	II	Measure using a digital multimeter. For the calibration of resistors.  On-site calibration available
10 Ω to 100 Ω	0.0012 % + 0.5 mΩ
100 Ω to 1 kΩ	0.001 % + 0.5 mΩ
1 kΩ to 10 kΩ	0.001 % + 5 mΩ
10 kΩ to 100 kΩ	0.001 % + 50 mΩ
100 kΩ to 1 MΩ	0.0015 % + 2 Ω
1 MΩ to 10 MΩ	0.005 % + 100 Ω
10 MΩ to 100 MΩ	0.05 % + 1 kΩ
100 MΩ to 1G Ω	0.5 % + 10 kΩ

Measured Quantity & Range or Instrument	Frequency	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Voltage, AC
220 µV to 1100 V	10 Hz to 1 MHz	49 ppm to 8 %	II	Generate using a multifunction calibrator. For the calibration of AC current measuring devices. See Annex A for detailed capabilities. On-site calibration available.
1 mV to 700 V	1 Hz to 8 MHz	0.007 % to 1.5 %		Measure. For the calibration of voltage sources using a digital multimeter. See Annex C for detailed capabilities. On-site calibration available.
1 kV to 60 kV	60 Hz	0.5 %		Measure using a high voltage divider and digital multimeter. For the calibration of ac voltage generating devices. On-site calibration available.
Current, AC
29 µA to 2.2 A	10 Hz to 10 kHz	7 % to 136 ppm	II	Generate using a multifunction calibrator. For the calibration of sinewave current measurement devices. See Annex B for details. On-site calibration available.
3 A to 20 A	45 Hz to 5 kHz	0.08 % to 3 %
10 µA to 1 A	10 Hz to 100 kHz	0.03 % to 1 %		Measure using a digital multimeter. For the calibration of sinewave current generating devices. See Annex D for details. On-site calibration available.

Oscilloscope

Measured Quantity & Range or Instrument	Frequency	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Amplitude DC
1.0 mV to 130 V (1 MΩ)	DC	0.05 % of output + 40 µV	II	Source using a multifunction calibrator. For the calibration of oscilloscopes. On-site calibration available
1.0 mV to 6.6 V (50 Ω)	DC	0.25 % of output + 40 µV
Square wave
1.0 mV to 130 V p-p (1 MΩ)	10 Hz to 10 kHz	0.25 % of output + 40 µV	II	Source using a multifunction calibrator. For the calibration of oscilloscopes. On-site calibration available
1.0 mV to 6.6 p-p V (50 Ω)	10 Hz to 10 kHz	0.25 % of output + 40 µV
Flatness. Leveled Sine Wave
5 mV to 5.5 V relative to 50 kHz	50 kHz to 100 MHz	1.5 % + 100 µV	II	Source using a multifunction calibrator. For the calibration of oscilloscopes. On-site calibration available
	100 MHz to 300 MHz	2 % + 100 µV
	300 MHz to 600 MHz	4 % + 100 µV
	600 MHz to 1.1 GHz	5 % + 100 µV
Time Marker
1 ns to 20 ms 50 ms to 5 s		( 25 + 1000T ) ppm (Note: T in seconds)	II	Source using a multifunction calibrator. For the calibration of oscilloscopes. On-site calibration available
Rise Time	1 kHz to 2 MHz	300 ps
	2 MHz to 10 MHz	350 ps
Input Resistance
40 Ω to 60 Ω		0.1 %	II	Source using a multifunction calibrator. For the calibration of oscilloscopes. On-site calibration available
500 KΩ to 1.5 MΩ		0.1 %
Input Capacitance
5 pF to 50 pF (1 MΩ)		5 % + 0.5 pF	II	Source using a multifunction calibrator. For the calibration of oscilloscopes. On-site calibration available

Measured Quantity & Range or Instrument	Frequency	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Capacitance
0.19 nF to 1.1 nF	10 Hz to 10 kHz	0.5 % + 0.01 nF	II	Source synthesized capacitance using a multiproduct calibrator. For the calibration of capacitance measuring devices. On-site calibration available.
1.1 nF to 3.3 nF	10 Hz to 3 kHz	0.5 % + 0.01 nF
3.3 nF to 11 nF	10 Hz to 1 kHz	0.25 % + 0.01 nF
11 nF to 110 nF	10 Hz to 1 kHz	0.25 % + 0.1 nF
110 nF to 330 nF	10 Hz to 1 kHz	0.25 % + 0.3 nF
0.33 μF to 1.1 μF	10 Hz to 600 Hz	0.25 % + 1 nF
1.1 μF to 3.3 μF	10 Hz to 300 Hz	0.25 % + 3 nF
3.3 μF to 11 μF	10 Hz to 150 Hz	0.25 % + 10 nF
11 μF to 33 μF	10 Hz to 120 Hz	0.40 % + 30 nF
33 μF to 110 μF	10 Hz to 80 Hz	0.45 % + 100 nF
110 μF to 330 μF	DC to 50 Hz	0.45 % + 300 nF
0.33 mF to 1.1 mF	DC to 20 Hz	0.45 % + 1 µF
1.1 mF to 3.3 mF	DC to 6 Hz	0.45 % + 3 µF
3.3 mF to 11 mF	DC to 2 Hz	0.45 % + 10 µF
11 mF to 33 mF	DC to 0.6 Hz	0.75 % + 30 µF
33 mF to 110 mF	DC to 0.2 Hz	1.1 % + 100 µF

Current clamp calibration

Measured Quantity & Range or Instrument	Frequency	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type	Remarks
Effective DC current output
10 to 16.5 A Turns		0.5 % + 20 mA	II	Source using a multifunction calibrator and a 50 turn coil. For the calibration of clamp meters.
16.5 to 150 A Turns		0.5 % + 140 mA
150 to 1025 A Turns		0.5 % + 500 mA
Effective AC current output
20 to 150 A Turns	65 to 440 Hz	0.8 %	II	Source using a multifunction calibrator and a 50 turn coil. For the calibration of clamp meters.
150 to 1000 A Turns	65 to 440 Hz	0.8 %

Power

Measured Quantity & Range or Instrument	Frequency	Calibration Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Remarks
Power, DC
0.33 mA to 330 mA
11 μW to 1.1 mW	DC	0.024 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. On-site calibration available.
1.1 mW to 110 mW	DC	0.027 %
0.11 W to 110 W	DC	0.024 %
110 W to 330 W	DC	0.018 %
0.33 A to 3 A
11 W to 110 mW	DC	0.044 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. On-site calibration available.
0.11 W to 990 W	DC	0.053 %
1 W to 3 kW	DC	0.0096 %
3 A to 20.5 A
0.099 W to 0.99 W	DC	0.088 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. On-site calibration available.
0.99 W to 6.8 kW	DC	0.07 %
6.8 kW to 20.5 kW	DC	0.04 %
Power, AC
3.3 mA to 9 mA
0.11 mW to 3 mW	10 Hz to 65 Hz	0.13 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. (PF = 1). See Note 1. On-site calibration available.
3 mW to 9 W	10 Hz to 65 Hz	0.077 %
9 mA to 33 mA
0.3 mW to 10 mW	10 Hz to 65 Hz	0.089 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. (PF = 1). See Note 1. On-site calibration available.
10 mW to 33 W	10 Hz to 65 Hz	0.077 %
33 mA to 90 mA
1 mW to 30 mW	10 Hz to 65 Hz	0.071 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. (PF = 1). See Note 1. On-site calibration available.
30 mW to 90 W	10 Hz to 65 Hz	0.057 %
90 mA to 330 mA
3.0 mW to 100 mW	10 Hz to 65 Hz	0.089 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. (PF = 1). See Note 1. On-site calibration available.
100 mW to 300 W	10 Hz to 65 Hz	0.078 %
0.33 A to 0.9 A
11 mW to 300 mW	10 Hz to 65 Hz	0.071 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. (PF = 1). See Note 1. On-site calibration available.
300 mW to 900 W	10 Hz to 65 Hz	0.081 %
0.9 A to 2.2 A
30 mW to 720 mW	10 Hz to 65 Hz	0.089 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. (PF = 1). See Note 1. On-site calibration available.
720 mW to 2 kW	10 Hz to 65 Hz	0.079 %
2.2 A to 4.5 A
80 mW to 1.4 W	10 Hz to 65 Hz	0.088 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. (PF = 1). See Note 1. On-site calibration available.
1.4 W to 4.5 kW	10 Hz to 65 Hz	0.18 %
4.5 A to 20.5 A
150 mW to 6.7 W	10 Hz to 65 Hz	0.17 %	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. (PF = 1). See Note 1. On-site calibration available.
6.7 W to 20 kW	10 Hz to 65 Hz	0.17 %
Phase
0 ° to 179.99 °	10 Hz to 65 Hz	0.11 °	Fluke 5520A or equivalent standard. Source. For the calibration of measurement devices using multifunction calibrators. On-site calibration available.
	65 Hz to 500 Hz	0.20 °
	500 Hz to 1 kHz	0.39 °
	1 kHz to 5 kHz	1.9 °
	5 kHz to 10 kHz	3.9 °
	10 kHz to 30 kHz	7.8 °

Electrical Calibration of Temperature Indicators and Simulators

Measured Quantity & Range or Instrument	Calibration and Measurement Capability expressed as an Uncertainty (±) (See supplementary notes)	Type of Service	Remarks
Electrical calibration of temperature indicators and simulators
Thermocouple simulation
Type B
600 to 800°C	0.44°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.
800 to 1000°C	0.34°C
1000 to 1550°C	0.30°C
1550 to 1820°C	0.33°C
Type E
-250 to -100°C	0.50°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.
-100 to -25°C	0.16°C
-25 to 350°C	0.14°C
350 to 650°C	0.16°C
650 to 1000°C	0.21°C
Type J
-210 to -100°C	0.27°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.
-100 to -30°C	0.16°C
-30 to 150°C	0.14°C
150 to 760°C	0.17°C
760 to 1200°C	0.23°C
Type K
-200 to -100°C	0.33°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.
-100 to -25°C	0.18°C
-25 to 120°C	0.16°C
120 to 1000°C	0.26°C
1000 to 1372°C	0.40°C
Type N
-200 to -100°C	0.40°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.
-100 to -25°C	0.22°C
-25 to 120°C	0.19°C
120 to 410°C	0.18°C
410 to 1300°C	0.27°C
Type R
0 to 250°C	0.57°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.
250 to 400°C	0.35°C
400 to 1000°C	0.33°C
1000 to 1767°C	0.40°C
Type S
0 to 250°C	0.47°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.
250 to 1000°C	0.36°C
1000 to 1400°C	0.37°C
1400 to 1767°C	0.46°C
Type T
-250 to -150°C	0.63°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.
-150 to 0°C	0.24°C
0 to 120°C	0.16°C
120 to 400°C	0.14°C
RTD simulation
-200°C to 630°C	0.04°C to 0.23°C	II	Source. For the calibration of temperature indicators and process calibrators by electrical simulation of temperature. On-site calibration available.

Note 1: The uncertainties shown are for the most favorable conditions. There is an increase in uncertainty that corresponds to the laboratory's AC voltage and current uncertainties at different frequencies other than the ones shown. Power factors (PF) other than the one shown contribute to the power uncertainty. PF is related to the cosine of phase. Therefore, uncertainties track the laboratory's phase uncertainty closely at PF near one but are magnified heavily as PF approaches zero. The lab may also report reactive power, apparent power, and power factor under this accreditation. If needed, contact laboratory for more information regarding uncertainties at frequency and power factor combinations other than the ones shown.

Annex A

Uncertainty, ±{ ( % of reading) + residual }, of AC voltage measurement for the calibration of digital multimeters and voltage measuring devices

Voltage, AC	Frequency
	10 Hz to 20 Hz	20 Hz to 40 Hz	40 Hz to 20 kHz	20 kHz to 50 kHz	50 kHz to 100 kHz	100 kHz to 300 kHz	300 kHz to 500 kHz	500 kHz to 1 MHz
220 µV to 2.2 mV	0.0240 % + 4 µV	0.009 % + 4 µV	0.008 % + 4 µV	0.020 % + 5 µV	0.050 % + 5 µV	0.11 % + 10 µV	0.14 % + 20 µV	0.27 % + 20 µV
2.2 mV to 22 mV	0.024 % + 4 µV	0.009 % + 4 µV	0.008 % + 4 µV	0.020 % + 4 µV	0.05 % + 5 µV	0.11 % + 10 µV	0.14 % + 20 µV	0.27 % + 20 µV
22 mV to 220 mV	0.024 % + 12 µV	0.009 % + 7 µV	0.008 % + 7 µV	0.02 % + 7 µV	0.046 % + 17 µV	0.09 % + 20 µV	0.14 % + 25 µV	0.27 % + 45 µV
220 mV to 2.2 V	0.024 % + 40 µV	0.009 % + 15 µV	0.0045 % + 8 µV	0.0075 % + 10 µV	0.011 % + 30 µV	0.042 % + 80 µV	0.10 % + 200 µV	0.17 % + 300 µV
2.2 V to 22 V	0.024 % + 400 µV	0.009 % + 150 µV	0.0045 % + 50 µV	0.0075 % + 100 µV	0.010 % + 200 µV	0.0275 % + 600 µV	0.10 % + 2000 µV	0.15 % + 3200 µV
22 V to 220 V	0.024 % + 4 mV	0.009 % + 1.5 mV	0.0052 % + 0.6 mV	0.008 % + 1 mV	0.015 % + 2.5 mV	0.09 % + 16 mV	0.44 % + 40 mV	0.8 % + 80 mV

Voltage, AC	Frequency
	15 Hz to 50 Hz	50 Hz to 1 kHz
220 V to 1100 V	0.03 % + 16 mV	0.007 % + 3.5 mV

Annex B

Best Uncertainty, ± {(% of measured AC current) + residual}, of AC current measurement for the calibration of current generating devices

Current, AC	Frequency
	10 Hz to 20 Hz	20 Hz to 40 Hz	40 Hz to 1 kHz	1 kHz to 5 kHz	5 kHz to 10 kHz
1 nA to 220 uA	0.025 % + 16 nA	0.016 % + 10 nA	0.012 % + 8 nA	0.028 % + 12 nA	1.1 % + 65 nA
220 uA to 2.2 mA	0.025 % + 40 nA	0.016 % + 35 nA	0.012 % + 35 nA	0.02 % + 110 nA	1.1 % + 650 nA
2.2 mA to 22 mA	0.025 % + 400 nA	0.016 % + 350 nA	0.012 % + 350 nA	0.02 % + 550 nA	1.1 % + 5000 nA
22 mA to 220 mA	0.025 + 4 µA	0.016 % + 3.5 µA	0.012 % + 2.5 µA	0.02 % + 3.5 µA	1.1 % + 10 µA
220 mA to 2.2 A	N/A	N/A	0.065 % + 35 µA	0.075 % + 80 µA	8.5 % + 160 µA

Annex C

Calibration Measurement Capability for the Calibration of Sinewave Voltage Generating Devices, expressed as ± { (% of reading) + residual in μV }

Voltage, ac	Frequency
	1 Hz to 40 Hz	40 Hz to 1 kHz	1 kHz to 20 kHz	20 kHz to 50 kHz	50 kHz to 100 kHz	100 kHz to 300 kHz
1 mV to 10 mV	0.03 + 3	0.02 + 1.1	0.03 + 1.1	0.1 + 1.1	0.5 + 1.1	4 + 2
10 mV to 100 mV	0.007 + 4	0.007 + 2	0.014 + 2	0.03 + 2	0.08 + 2	0.3 + 10
100 mV to 1 V	0.007 + 40	0.007 + 20	0.014 + 20	0.03 + 20	0.08 + 20	0.3 + 100
1 V to 10 V	0.007 + 400	0.007 + 200	0.014 + 200	0.03 + 200	0.08 + 200	0.3 + 1000
10 V to 100 V	0.02 + 4000	0.02 + 2000	0.02 + 2000	0.035 + 2000	0.12 + 2000	0.4 + 10000
100 V to 700 V	0.04 + 40000	0.04 + 20000	0.06 + 20000	0.12 + 20000	0.3 + 20000

Voltage, ac	Frequency
	300 kHz to 1 MHz	1 MHz to 2 MHz	2 MHz to 4 MHz	4 MHz to 8 MHz	8 MHz to 10 MHz
1 mV to 10 mV	1.2 + 5	7 + 7	7 + 7	20 + 8
10 mV to 100 mV	1 + 10	1.5 + 10	4 + 70	4 + 80	15 + 100
100 mV to 1 V	1 + 100	1.5 + 100	4 + 700	4 + 800	15 + 1000
1 V to 10 V	1 + 1000	1.5 + 1000	4 + 7000	4 + 8000	15 + 10000
10 V to 100 V	1.5 + 10000

Annex D

Calibration Measurement Capability for the Calibration of Sinewave Current Generating Devices, expressed as ± { (% of reading) + residual in μA }

Voltage, ac	Frequency
	10 Hz to 20 Hz	20 Hz to 45 Hz	45 Hz to 100 Hz	100 Hz to 5 kHz	5 kHz to 20 kHz	20 kHz to 50 kHz	50 kHz to 100 kHz
10 µA to 100 µA	0.4 + 0.03	0.15 + 0.03	0.06 + 0.03	0.06 + 0.03
100 µA to 1 mA	0.4 + 0.2	0.15 + 0.2	0.06 + 0.2	0.03 + 0.2	0.06 + 0.2	0.4 + 0.4	0.55 + 1.5
1 mA to 10 mA	0.4 + 2	0.15 + 2	0.06 + 2	0.03 + 2	0.06 + 2	0.4 + 4	0.55 + 15
10 mA to 100 mA	0.4 + 20	0.15 + 20	0.06 + 20	0.03 + 20	0.06 + 20	0.4 + 40	0.55 + 150
100 mA to 1 A	0.4 + 200	0.16 + 200	0.08 + 200	0.1 + 200	0.3 + 200	1 + 400