SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017

& ANSI/NCSL Z540-1-1994

CONNECTICUT CALIBRATION LABS

327 S. Main Street
Newtown, CT 06470
Joseph Zeolla Phone: 203 270 1263

CALIBRATION

Valid To: November 30, 2024 Certificate Number: 2010.01

In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this
laboratory to perform the following calibrations1, 8:
I. Acoustics

Parameter/Equipment Range CMC2, 5, 7 (±) Comments

Sound – Measuring 110.0 dB @ 1kHz 0.47 dB + 0.6R Quest CA-12B

Equipment

II. Dimensional

Parameter/Equipment Range CMC2, 5 (±) Comments

Angle – Measure (0 to 360)° 0.26° Protractor

Calipers3 Up to 48 in (53 + 15L + 0.6RD) µin Gage blocks

Height Gages3 Up to 24 in (56 + 2.8L + 0.6RD) µin Gage blocks

Indicators3 Up to 1 in (170 + 0.6RD) µin Starrett 716, gage

Up to 25 mm (4.3 + 0.6RD) µm blocks

Steel Rulers Up to 48 in (0.018 + 0.6RD) in Starrett C604R-48

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 1 of 13

 Parameter/Equipment Range CMC2, 5 (±) Comments

Pins (0.011 to 1) in 55 µin Laser micrometer,

master pins

Crimpers3 (0.011 to 0.5) in 240 µin Meyer plus,

Meyer minus

Micrometers3 Up to 12.000 in (32 + 2.5L + 0.6RD) µin Gage blocks

Up to 100 mm (0.92 + 0.003L + 0.6RD) µm

Fixture & Attribute Up to 6 in (76 + 18L) µin Micrometer

Gages

III. Electrical – DC/Low Frequency

Parameter/Equipment Range CMC2, 4, 6 (±) Comments

DC Voltage – Generate (0 to 330) mV 35 µV/V + 1 µV Fluke 5520A

330 mV to 3.3 V 17 µV/V + 2 µV
(3.3 to 33) V 20 µV/V + 20 µV
(33 to 330) V 25 µV/V + 150 µV
(100 to 1000) V 20 µV/V + 1500 µV

(1 to 5) kV 9.7 V Keithley 2290-10

(5 to 10) kV 11 V

DC Voltage – (0 to 100) mV 29 µV/V + 0.3 µV HP 3458A opt 002

Measure3 100 mV to 1 V 13 µV/V + 0.3 µV
(1 to 10) V 15 µV/V + 0.5 µV
(10 to 100) V 18 µV/V + 30 µV
(100 to 1100) V 10 µV/V + 100 µV

(1 to 40) kV 2.5 % Amprobe HU231-

10A

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 2 of 13

 Parameter/Equipment Range CMC2, 4, 6 (±) Comments

DC Current – (0 to 330) µA 0.02 % + 0.02 µA Fluke 5520A

Generate 330 µA to 3.3 mA 0.01 % + 0.05 µA
(3.3 to 33) mA 0.01 % + 0.25 µA
(33 to 330) mA 0.011 % + 2.5 µA
330 mA to 1.1 A 0.022 % + 40 µA
(1.1 to 3) A 0.039 % + 40 µA
(3 to 11) A 0.051 % + 500 µA
(11 to 20) A 0.1 % + 750 µA

Clamp-on Only (20 to 150) A 0.64 % + 0.16 A with 5500A coil

(150 to 1000) A 0.65 % + 0.58 A

DC Current – Measure3 (0 to 10) µA 0.015 % + 40 pA HP 3458A opt 002

(10 to 100) µA 0.015 % +100 pA
100 µA to 1 mA 35 µA/A + 800 pA
(1 to 10) mA 37 µA/A + 5 nA
(10 to 100) mA 61 µA/A + 50 nA
100 mA to 1 A 0.012 % + 500 nA
Agilent 3458A
(1 to 50) A 0.3 % with Empro 50-50

DC Resistance – Generate (0 to 11) Ω 56 µΩ/Ω + 0.001 Ω Dale ECN 250

(11 to 33) Ω 51 µΩ/Ω + 0.0018 Ω Fluke 5520A
(33 to 110) Ω 43 µΩ/Ω + 0.0014 Ω
(110 to 330) Ω 32 µΩ/Ω + 0.002 Ω
(0.33 to 1.1) kΩ 30 µΩ/Ω + 0.002 Ω
(1.1 to 3.3) kΩ 30 µΩ/Ω + 0.02 Ω
(3.3 to 11) kΩ 29 µΩ/Ω + 0.02 Ω
(11 to 33) kΩ 30 µΩ/Ω + 0.2 Ω
(33 to 110) kΩ 29 µΩ/Ω + 0.2 Ω
(110 to 330) kΩ 37 µΩ/Ω + 2 Ω
(0.33 to 1.1) MΩ 34 µΩ/Ω + 2 Ω
(1.1 to 3.3) MΩ 150 µΩ/Ω + 30 Ω
(3.3 to 11) MΩ 0.014 % + 50 Ω
(11 to 33) MΩ 0.047 % + 2.5 kΩ
(33 to 110) MΩ 0.45 % + 3 kΩ
(110 to 330) MΩ 0.46 % + 100 kΩ
(0.33 to 1.1) GΩ 1.5 % + 500 kΩ

DC Resistance – Measure3 (0 to 10) Ω 33 µΩ/Ω + 50 µΩ HP 3458A opt 002

(10 to 100) Ω 34 µΩ/Ω + 500 µΩ
100 Ω to 1 kΩ 16 µΩ/Ω + 500 µΩ
(1 to 10) kΩ 14 µΩ/Ω + 5 mΩ
(10 to 100) kΩ 14 µΩ/Ω + 50 mΩ

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 3 of 13

 Parameter/Equipment Range CMC2, 6 (±) Comments

DC Resistance – Measure3 100 kΩ to 1 MΩ 19 µΩ/Ω + 2 Ω HP 3458A opt 002

(cont) (1 to 10) MΩ 57 µΩ/Ω + 100 Ω
(10 to 100) MΩ 0.063 % + 1 kΩ
100 MΩ to 1 GΩ 0.5 % + 10 kΩ

Parameter/Range Frequency CMC2, 6 (±) Comments

AC Voltage – Generate

(1 to 33) mV (10 to 45) Hz 0.092 % + 6 µV Fluke 5520A

45 Hz to 10 kHz 0.048 % + 6 µV
(10 to 20) kHz 0.026 % + 6 µV
(20 to 50) kHz 0.10 % + 6 µV
(50 to 100) kHz 0.35 % + 12 µV
(100 to 500) kHz 0.80 % + 50 µV

(33 to 330) mV (10 to 45) Hz 0.033 % + 8 µV

45 Hz to 10 kHz 0.019 % + 8 µV
(10 to 20) kHz 0.020 % + 8 µV
(20 to 50) kHz 0.038 % + 8 µV
(50 to 100) kHz 0.081 % + 32 µV
(100 to 500) kHz 0.20 % + 70 µV

(0.33 to 3.3) V (10 to 45) Hz 0.034 % + 50 µV

45 Hz to 10 kHz 0.018 % + 60 µV
(10 to 20) kHz 0.024 % + 60 µV
(20 to 50) kHz 0.037 % + 50 µV
(50 to 100) kHz 0.074 % + 130 µV
(100 to 500) kHz 0.24 % + 600 µV

(3.3 to 33) V (10 to 45) Hz 0.033 % + 650 µV

45 Hz to 10 kHz 0.020 % + 600 µV
(10 to 20) kHz 0.027 % + 600 µV
(20 to 50) kHz 0.039 % + 600 µV
(50 to 100) kHz 0.092 % + 1.6 mV

(33 to 330) V 45 Hz to 1 kHz 0.027 % + 2 mV

(1 to 10) kHz 0.028 % + 6 mV
(10 to 20) kHz 0.031 % + 6 mV
(20 to 50) kHz 0.037 % + 6 mV
(50 to 100) kHz 0.20 % + 50 mV

(330 to 1020) V 45 Hz to 1 kHz 0.035 % + 10mV

(1 to 5) kHz 0.029 % + 10 mV
(5 to 10) kHz 0.034 % + 10 mV

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 4 of 13

 Parameter/Range Frequency CMC2, 4, 5, 6 (±) Comments

AC Voltage – Measure3

(1 to 10) mV 45 Hz to 1 kHz 0.03 % + 1.1 µV HP 3458A opt 002

(1 to 20) kHz 0.04 % + 1.1 µV
(20 to 50) kHz 0.1 % + 1.1 µV
(50 to 100) kHz 0.5 % + 1.1 µV
(100 to 300) kHz 4 % + 2 µV

(10 to 100) mV 45 Hz to 1 kHz 0.019 % + 2 µV

(1 to 20) kHz 0.022 % + 2 µV
(20 to 50) kHz 0.04 % + 2 µV
(50 to 100) kHz 0.08 % + 2 µV
(100 to 300) kHz 0.3 % + 10 µV
300 kHz to 1 MHz 1 % + 10 µV

100 mV to 1 V 45 Hz to 1 kHz 0.013 % + 0.2mV

(1 to 20) kHz 0.021 % + 0.2mV
(20 to 50) kHz 0.04 % + 0.2mV
(50 to 100) kHz 0.08 % + 0.2mV
(100 to 300) kHz 0.3 % + 1 mV
300 kHz to 1 MHz 1 % + 1 mV

(1 to 10) V 45 Hz to 1 kHz 0.015 % + 0.2mV

(1 to 20) kHz 0.02 % + 0.2mV
(20 to 50) kHz 0.04 % + 0.2mV
(50 to 100) kHz 0.09 % + 0.2mV
(100 to 300) kHz 0.3 % + 11 mV
300 kHz to 1 MHz 1 % + 1 mV

(10 to 100) V 45 Hz to 1 kHz 0.03 % + 2 mV

(1 to 20) kHz 0.03 % + 2 mV
(20 to 50) kHz 0.042 % + 2 mV
(50 to 100) kHz 0.12 % + 10 mV
(100 to 300) kHz 0.4 % + 10 mV

(100 to 1000) V 45 Hz to 1 kHz 0.06 % + 20 mV

(1 to 20) kHz 0.08 % + 20 mV
(20 to 50) kHz 0.13 % + 20 mV

(1 to 40) kV (60 to 400) Hz 6.4 % Amprobe HU231-

10A

(1 to 20) kV 400 Hz to 75 MHz 3.6 % + 0.6R Tektronix P6015

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 5 of 13

 Parameter/Range Frequency CMC2, 6 (±) Comments

AC Current – Generate

(29 to 330) µA (10 to 20) Hz 0.23 % + 0.1 µA Fluke 5520A

(20 to 45) Hz 0.19 % + 0.1 µA
45 Hz to 1 kHz 0.17 % + 0.1 µA
(1 to 5) kHz 0.31 % + 0.15 µA
(5 to 10) kHz 0.81 % + 0.2 µA
(10 to 30) kHz 1.6 % + 0.4 µA

(0.33 to 3.3) mA (10 to 20) Hz 0.21 % + 0.15 µA

(20 to 45) Hz 0.15 % + 0.15µA
45 Hz to 1 kHz 0.13 % + 0.15 µA
(1 to 5) kHz 0.21 % + 0.2 µA
(5 to 10) kHz 0.51 % + 0.30 µA
(10 to 30) kHz 1.0 % + 0.6 µA

(3.3 to 33) mA (10 to 20) Hz 0.18 % + 1.0 µA

(20 to 45) Hz 0.09 % + 2.0 µA
45 Hz to 1 kHz 0.08 % + 2.0 µA
(1 to 5) kHz 0.11 % + 2.0 µA
(5 to 10) kHz 0.22 % + 3.0 µA
(10 to 30) kHz 0.41 % + 4.0 µA

(33 to 330) mA (10 to 20) Hz 0.20 % + 20 µA

(20 to 45) Hz 0.10 % + 20 µA
45 Hz to 1 kHz 0.09 % + 20 µA
(1 to 5) kHz 0.13 % + 50 µA
(5 to 10) kHz 0.21 % + 100 µA
(10 to 30) kHz 0.41 % + 200 µA

(0.33 to 3.0) A (10 to 45) Hz 0.19 % + 100 µA

45 Hz to 1.0 kHz 0.10 % + 100 µA
(1 to 5) kHz 1.5 % + 1 mA
(5 to 10) kHz 2.5 % + 5 mA

(3 to 11) A (45 to 100) Hz 0.59 % + 2 mA

100 Hz to 1 kHz 0.14 % + 2 mA
(1 to 5) kHz 3.0 % + 2 mA

(11 to 20.5) A (45 to 100) Hz 0.16 % + 5 mA

100 Hz to 1 kHz 0.52 % + 5 mA
(1 to 5) kHz 3.0 % + 5 mA
Clamp-On Only
(20 to 150) A @ 60 Hz 0.63 % + 0.16 A with 5500A coil
(150 to 550) A @ 60 Hz 0.85 % + 0.58 A
(550 to 1000) A @ 60 Hz 0.64 % + 0.58 A

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 6 of 13

 Parameter/Range Frequency CMC2, 6 (±) Comments

AC Current – Measure3

(5 to 100) µA (10 to 20) Hz 0.41 % + 30 nA HP 3458A opt 002

(20 to 45) Hz 0.17 % + 30 nA
45 Hz to 100 Hz 0.10 % + 30 nA
100 Hz to 1 kHz 0.08 % + 30 nA

100 µA to 1 mA (10 to 20) Hz 0.40 % + 0.2 µA

(20 to 45) Hz 0.15 % + 0.2 µA
(45 to 100) Hz 0.062 % + 0.2 µA
100 Hz to 5 kHz 0.033 % + 0.2 µA
(5 to 20) kHz 0.071 % + 0.2 µA
(20 to 50) kHz 0.40 % + 0.4 µA

(1 to 10) mA (10 to 20) Hz 0.40 % + 2 µA

(20 to 45) Hz 0.15 % + 2 µA
(45 to 100) Hz 0.061 % + 2 µA
100 Hz to 5 kHz 0.034 % + 2 µA
(5 to 20) kHz 0.067 % + 2 µA
(20 to 50) kHz 0.40 % + 4 µA

(10 to 100) mA (10 to 20) Hz 0.40 % + 20 µA

(20 to 45) Hz 0.15 % + 20 µA
(45 to 100) Hz 0.061 % + 20 µA
100 Hz to 5 kHz 0.031 % + 20 µA
(5 to 20) kHz 0.062 % + 20 µA
(20 to 50) kHz 0.40 % + 40 µA

100 mA to 1 A (10 to 20) Hz 0.40 % + 0.2 mA

(20 to 45) Hz 0.16 % + 0.2 mA
(45 to 100) Hz 0.081 % + 0.2mA
100 Hz to 5 kHz 0.10 % + 0.2 mA
(5 to 20) kHz 0.30 % + 0.2 mA
(20 to 50) kHz 1.0 % + 0.4 mA

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 7 of 13

 Parameter/Range Frequency CMC2, 6 (±) Comments

Capacitance – Generate

(0.19 to 0.4) nF 10 Hz to 10 kHz 3.4 % + 0.01 nF Fluke 5520A

(0.4 to 1.1) nF 10 Hz to 10 kHz 1.6 % + 0.01 nF
(1.1 to 3.3) nF 10 Hz to 3 kHz 0.58 % + 0.01 nF
(3.3 to 11) nF 10 Hz to 1 kHz 0.28 % + 0.01 nF
(11 to 33) nF 10 Hz to 1 kHz 0.28 % + 0.1 nF
(33 to 110) nF 10 Hz to 1 kHz 0.28 % + 0.1 nF
(110 to 330) nF 10 Hz to 1 kHz 0.28 % + 0.3 nF
(0.33 to 1.1) µF (10 to 600) Hz 0.28 % + 1 nF
(1.1 to 3.3) µF (10 to 300) Hz 0.27 % + 3 nF
(3.3 to 11) µF (10 to 150) Hz 0.27 % + 10 nF
(11 to 33) µF (10 to 120) Hz 0.41 % + 30 nF
(33 to 110) µF Up to 80 Hz 0.46 % + 100 nF
(110 to 330) µF Up to 50 Hz 0.45 % + 300 nF

(0.33 to 1.1) mF Up to 20 Hz 0.45 % + 1 nF

(1.1 to 3.3) mF Up to 6 Hz 0.45 % + 3 nF
(3.3 to 11) mF Up to 2 Hz 0.45 % + 10 nF
(11 to 33) mF Up to 0.6 Hz 0.75 % + 30 nF
(33 to 110) mF Up to 0.2 Hz 1.1 % + 100 nF

Inductance – Generate3 @ 1 kHz 0.1 mH GenRad 1842L

@ 100 mH

Parameter/Equipment Range CMC2 (±) Comments

Electrical Calibration of
Thermocouple
Indicators3 –

Type E (-250 to -100) °C 0.55 °C Fluke 5520A

(-100 to -25) °C 0.28 °C
(-25 to 350) °C 0.27 °C
(350 to 650) °C 0.28 °C
(650 to 1000) °C 0.32 °C

Type J (-210 to -100) °C 0.36 °C

(-100 to -30) °C 0.28 °C
(-30 to 150) °C 0.27 °C
(150 to 760) °C 0.29 °C
(760 to 1200) °C 0.33 °C

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 8 of 13

 Parameter/Equipment Range CMC2 (±) Comments

Electrical Calibration of
Thermocouple
Indicators3 – (cont)

Type K (-200 to -100) °C 0.40 °C Fluke 5520A

(-100 to -25) °C 0.30 °C
(-25 to 120) °C 0.28 °C
(120 to 1000) °C 0.35 °C
(1000 to 1372) °C 0.46 °C

Type T (-250 to -150) °C 0.67 °C

(-150 to 0) °C 0.34 °C
(0 to 120) °C 0.28 °C
(120 to 400) °C 0.27 °C

Electrical Calibration
of RTDs –

Pt 385, 100 Ω (-200 to -80) °C 0.07 °C Fluke 5520A

(-80 to 0) °C 0.07 °C
(0 to 100) °C 0.09 °C
(100 to 300) °C 0.10 °C
(300 to 400) °C 0.11 °C
(400 to 630) °C 0.13 °C
(630 to 800) °C 0.24 °C

Pt 385, 200 Ω (-200 to -80) °C 0.08 °C

(-80 to 0) °C 0.08 °C
(0 to 100) °C 0.08 °C
(100 to 260) °C 0.09 °C
(260 to 300) °C 0.14 °C
(300 to 400) °C 0.15 °C
(400 to 600) °C 0.16 °C
(600 to 630) °C 0.17 °C

Pt 385, 1000 Ω (-200 to -80) °C 0.04 °C

(-80 to 0) °C 0.04 °C
(0 to 100) °C 0.05 °C
(100 to 260) °C 0.05 °C
(260 to 300) °C 0.06 °C
(300 to 400) °C 0.07 °C
(400 to 600) °C 0.07 °C
(600 to 630) °C 0.23 °C

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 9 of 13

 Parameter/Equipment Range CMC2, 6 (±) Comments

Electrical Calibration
of RTDs –

Pt 3916, 100 Ω (-200 to -190) °C 0.26 °C Fluke 5520A

(-190 to -80) °C 0.06 °C
(-80 to 0) °C 0.07 °C
(0 to 100) °C 0.08 °C
(100 to 260) °C 0.09 °C
(260 to 300) °C 0.09 °C
(300 to 400) °C 0.10 °C
(400 to 600) °C 0.11 °C
(600 to 630) °C 0.24 °C

Pt 3926, 100 Ω (-200 to -80) °C 0.07 °C

(-80 to 0) °C 0.07 °C
(0 to 100) °C 0.09 °C
(100 to 300) °C 0.10 °C
(300 to 400) °C 0.11 °C
(400 to 630) °C 0.13 °C

Oscilloscopes –
Amplitude

Square Wave Signal,

50 Ω @ 1 kHz (0 to 6.6) V 0.26 % + 40 µV Fluke 5520A option
SC1100 & Agilent
1 MΩ 1 mV to 130 V 0.10 % + 40 µV 3458A opt 002

Leveled Sine Wave

Characteristics into 50 Ω 50 kHz (Reference) 2 % + 300 µV Fluke 5520A option
SC1100
Square Wave Signal 50 kHz to 100MHz 3.5 % + 300 µV
(100 to 300) MHz 4 % + 300 µV
(300 to 600) MHz 6 % + 300 µV
(600 to 1100) MHz 7 % + 300 µV

Frequency Accuracy 10 kHz to 100kHz 2.5 µHz/Hz

Amplitude (Relative to 50 50 kHz to 100 MHz 1.5 % + 100 µV

kHz) (101 to 300) MHz 2.0 % + 100 µV
(301 to 600) MHz 4.0 % + 100 µV
(601 to 1100) MHz 5.0 % + 100 µV

Time Marker into 5 s to 50 ms 25 µs/s + t·1000 µs/s t is the time in

50 Ω 20 ms to 10 ns 3 µs/s seconds
(5 to 2) ns 4 µs/s

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 10 of 13

IV. Mechanical

Parameter/Equipment Range CMC2, 4, 5, 7 (±) Comments

Torque – Measuring (5 to 50) lbf·in 0.4 lbf·in Sturtevant-Richmont

Equipment (> 50 to 300) lbf·in 1.8 lbf·in torque tester

(25 to 100) lbf·ft 2.6 lbf·ft Snap-on torque testers

(> 100 to 600) lbf·ft 4.9 lbf·ft

Scales & Balances3 (1 to 1000) g 1 mg + 0.6R Class 1 weights

(1000 to 20 000)g 1.1 g + 0.6R
Up to 25 lb 0.1 g + 0.6R Class F weights
[Up to 11.3398 kg]
(25 to 50) lb 0.3 g + 0.6R
[(11.3398 to 22.6796) kg]
(50 to 200) lb 0.7 lb + 0.6R
[(22.6796 to 90.7185) kg]

Mass 40 mg to 800 g 13 mg Ohaus AV812

(0.8 to 12) kg 1.7 g Transcell
(10 to 60) lb 0.4 g
[(4.5359 to 27.2155) kg]

Pressure Gages (1 to 300) psi 0.15 psi + 0.6R Fluke 718

(10 to 1000) psi 0.03 % + 0.6R Ametek HK-1000

(1000 to 10000) psi 8 psi + 0.6R Fluke 700HTP2

Force3 – Measure and 0.25 oz to 25 lbf 210 mgf + 0.6R Heusser Neweigh
Measuring Equipment [7.1 gf to 11.3398 kgf] Class F weights

Rice Lake
25 lbf 0.0017 lbf + 0.6R 1203
Fixed Points 50 lbf 0.0036 lbf + 0.6R 1207
75 lbf 0.0052 lbf + 0.6R 1203, 1207
100 lbf 0.0067 lbf + 0.6R 1207, 1208
125 lbf 0.0083 lbf + 0.6R 1207, 1208, 1203
150 lbf 0.0097 lbf + 0.6R 1207, 1208, 1203, 1204
200 lbf 0.012 lbf + 0.6R ALL

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 11 of 13

V. Thermodynamics

Parameter/Equipment Range CMC2, 4, 7 (±) Comments

Temperature – Measure (-35 to 350) °C 0.79 °C Fluke 9140 dry well

Temperature – Measuring (-200 to -100) °C 1.3 °C Fluke 714

Equipment (> -100 to 899) °C 0.74 °C
(900 to 1200) °C 0.98 °C
(-328 to 2498) °F 1.1 °F

Relative Humidity – Up to 90 % RH 1.9 % RH Vaisala MI70/HMP77

Measure3 (90 to 98) % RH 2.5 % RH

VI. Time & Frequency

Parameter/Equipment Range CMC2, 5, 7 (±) Comments

Frequency – Measuring 10 MHz 0.16 Hz Efratom frequency

Equipment standard

Frequency – Measure3 1 Hz to 1.1 GHz 0.27 Hz HP 5334B

Stopwatches3 (0 to 86 400) s/day 0.96 s/day + 0.6R Master stopwatch

___________________________________________

1
This laboratory offers commercial calibration service and field calibration service.
2
Calibration and Measurement Capability Uncertainty (CMC) is the uncertainty of measurement that a
laboratory can achieve within its scope of accreditation when performing more or less routine calibrations
of nearly ideal measurement standards or nearly ideal measuring equipment. CMCs represent expanded
uncertainties expressed at approximately the 95 % level of confidence, usually using a coverage factor of
k = 2. The actual measurement uncertainty of a specific calibration performed by the laboratory may be
greater than the CMC due to the behavior of the customer’s device and to influences from the
circumstances of the specific calibration.
3
Field calibration service is available for this calibration. Please note the actual measurement uncertainties
achievable on a customer's site can normally be expected to be larger than the CMC found on the A2LA
Scope. Allowance must be made for aspects such as the environment at the place of calibration and for
other possible adverse effects such as those caused by transportation of the calibration equipment. The
usual allowance for the actual uncertainty introduced by the item being calibrated, (e.g. resolution) must
also be considered and this, on its own, could result in the actual measurement uncertainty achievable on
a customer’s site being larger than the CMC.

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 12 of 13

4
In the statement of CMC percent refers to percent of reading unless otherwise noted.
5
L is the length in inches/mm of the unit under test, RD is the resolution in inches/mm for dimensional
calibrations, and R is the resolution of the unit under test for all other calibrations.
6
The stated measured values are determined using the indicated instrument (see Comments). This
capability is suitable for the calibration of the devices intended to measure or generate the measured value
in the ranges indicated. CMC are expressed as either a specific value that covers the full range or as a
fraction of the reading plus a fixed floor specification.
7
The type of instrument or material being calibrated is defined by the parameter. This indicates the
laboratory is capable of calibrating instruments that measure or generate the values in the ranges indicated
for the listed measurement parameter.
8
This scope meets A2LA’s P112 Flexible Scope Policy.

(A2LA Cert. No. 2010.01) Revised 10/16/2024 Page 13 of 13

 Accredited Laboratory
A2LA has accredited

CONNECTICUT CALIBRATION LABS

Newtown, CT
for technical competence in the field of

Calibration
This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General
requirements for the competence of testing and calibration laboratories. This laboratory also meets the requirements of ANSI/NCSL
Z540-1-1994 and R205 – Specific Requirements: Calibration Laboratory Accreditation Program. This accreditation demonstrates
technical competence for a defined scope and the operation of a laboratory quality management system
(refer to joint ISO-ILAC-IAF Communiqué dated April 2017).

Presented this 13th day of February 2023.

_______________________
Mr. Trace McInturff, Vice President, Accreditation Services
For the Accreditation Council
Certificate Number 2010.01
Valid to November 30, 2024
Revised on October 16, 2024

For the calibrations to which this accreditation applies, please refer to the laboratory’s Calibration Scope of Accreditation.