SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017

TECHNOLOGY & METROLOGY TEGMETRO S.A.

Juan Domingo N65-85 y Manuel Guizado
Quito, Ecuador 170301
Henry Arizaga Phone: +593-02-6007779

CALIBRATION

Valid To: December 31, 2024 Certificate Number: 4150.01

In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this
laboratory at the location listed above as well as the satellite laboratory location listed below to perform the
following calibrations1, 5:

I. Acoustics

Parameter/Range Frequency CMC2, 4 () Comments

Sound Level3 – Measuring

Equipment

74 dB (125 to 1000) Hz 0.51 dB Comparison using

84 dB 0.51 dB portable sound level
94 dB 0.51 dB calibrator
104 dB 0.51 dB
114 dB 0.24 dB

Sound Level3 – Measuring

Equipment

74 dB (1 to 4) kHz 0.59 dB Comparison using

84 dB 0.59 dB portable sound level
94 dB 0.59 dB calibrator
104 dB 0.59 dB
114 dB 0.35 dB

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 1 of 20

II. Chemical

Parameter/Equipment Range CMC2 () Comments

Conductivity Meters3 1 µS/cm 0.3 µS/cm Conductivity

2 μS/cm 0.14 μS/cm standard solution
5 μS/cm 0.14 μS/cm
10 µS/cm 0.6 µS/cm

Conductivity Meters3 100 µS/cm 2 µS/cm Conductivity

1000 µS/cm 4.6 µS/cm standard solution
1413 µS/cm 4.6 µS/cm
10 000 μS/cm 56 μS/cm
100 000 μS/cm 550 μS/cm

pH Meters3 4 pH Unit 0.011 pH Unit pH buffer solution

7 pH Unit 0.011 pH Unit
10 pH Unit 0.011 pH Unit
12.47 pH Unit 0.046 pH Unit

III. Dimensional Testing

Parameter/Equipment Range CMC2 () Comments

One Dimensional8 – Length Up to 25 mm 0.000 82 mm Vision system with

Up to 1 in 32 µin microscope

Up to 25 mm 0.000 45 mm Precision micrometer

Up to 1 in 18 µin

Up to 25 mm 0.0015 mm Indicator
Up to 1 in 59 µin

Up to 150 mm 0.0019 mm Micrometer

Up to 6 in 75 µin

Up to 200 mm 0.011 mm Caliper

Up to 8 in 0.000 43 in

Up to 450 mm 0.011 mm Height gage

Up to 17.7 in 0.000 43 in

Up to 5000 mm 0.61 mm Tape master

Up to 197 in 0.024 in

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 2 of 20

IV. Dimensional

Parameter/Equipment Range CMC2, 6 () Comments

Calipers – Outside, Inside,

& Depth

Digital Up to 600 mm 8.2 µm Gage blocks

(Up to 24) in 0.000 32 in

Analog Up to 600 mm 16 µm
(Up to 24) in 0.000 63 in

Outside, Inside, & Depth Up to 25 mm 0.35 µm Gage blocks

Micrometers – Digital & (25 to 600) mm (0.012L - 0.052) µm
Analog
Up to 1 in 14 µin
(1 to 24) in (12L - 2.0) µin

Three Contact Inside (12.7 to 114.3) mm 0.9 µm Gage rings

Micrometers & Bore Gages (0.5 to 4.5) in 35 µin
– Digital & Analog
127 mm 2.2 µm
5 in 86 µin

(139.7 to 152.4) mm 1.0 µm

(5.5 to 6) in 38 µin

Mechanical Thickness Up to 50 mm 0.8 µm Gage blocks

Gages Up to 2 in 32µin

Indicators Up to 25 mm 1.2 µm Gage blocks

Up to 1 in 47 µin

Analog & Digital Weld Up to 50 mm 20 µm Gage blocks

Gages
Up to 2.7 in 0.000 79 in Caliper

Oil Gauging Tape Up to 30 m 200 µm Master tape measure

Measures

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 3 of 20

 Parameter/Equipment Range CMC2 () Comments

Tape Measures Up to 30 m 210 µm Master tape measure

(30 to 40) m 300 µm
(40 to 50) m 420 µm
(50 to 60) m 520 µm
(60 to 70) m 600 µm
(70 to 80) m 670 µm
(80 to 90) m 730 µm
(90 to 100) m 790 µm

Pi Tape (10 to 150) mm 0.019 mm

(0.39 to 5.9) in 0.000 75 in Ring gages

(150 to 3600) mm 0.12 mm Tape master

(5.9 to 141.7) in 0.0047 in

Multi-Step Thickness Up to 25 mm 1.1 µm ASTM E797/E797M:

Gage Blocks Up to 1 in 40 µin gage blocks &
micrometer as
comparator

Ultrasonic Thickness (2 to 25) mm 0.018 mm Multi-step thickness

Gages3 (0.0079 to 1) in 0.000 71 in gage blocks

Ultrasonic Flaw Detectors3 (25.4 to 100) mm 0.013 mm I IW Type 1 reference

(1 to 4) in 0.000 51 in block

(100 to 250) mm 0.015 mm

(4 to 9.8) in 0.000 59 in

Coating Thickness Gage3 24 µm (0.94 mil) 0.82 µm / 0.032 mil Coating thickness
53 µm (2.09 mil) 0.82 µm / 0.032 mil standard
130 µm (5.12 mil) 0.82 µm / 0.032 mil
260 µm (10.2 mil) 0.82 µm / 0.032 mil
261.6 µm (10.3 mil) 0.94 µm / 0.037 mil
530 µm (20.9 mil) 0.82 µm / 0.032 mil
538.5 µm (21.2 mil) 0.82 µm / 0.032 mil
770.2 µm (30.3 mil) 0.82 µm / 0.032 mil
1580.3 μm (62.2 mil) 0.82 µm / 0.032 mil

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 4 of 20

 Parameter/Equipment Range CMC2, 6 () Comments

Rulers Up to 1 m 0.17 mm Master tape measure

Reference Blocks for ASTM E164 using:

Calibration of Ultrasonic Up to 200 mm 19 µm Calipers
Testing Instruments Up to 8 in 750 µin

(>200 to 450) mm 16 µm Height gauge

Up to 17.7 in 630 µin

Feeler/Thickness Gages3 Up to 2 mm 0.76 µm Precision micrometer

Up to 0.08 in 30 µin

Displacement Measuring ASTM E2309 using:

Systems and Devices used
in Material Testing (0.5 to 25) mm 2 μm Digital indicator
Machines – Displacement/
Crosshead Travel3 (25 to 150) mm 8.4 μm Digital caliper

V. Electrical – DC/Low Frequency

Parameter/Equipment Range CMC2, 7 () Comments

DC Voltage3 – Generate (0 to 100) mV 33 µV/V + 10 µV Transmille 1000A

(0.1 to 1) V 62 µV/V + 26 µV
(1 to 10) V 0.062 mV/V + 0.24 mV
(10 to 100) V 0.062 mV/V + 2.4 mV
(100 to 1000) V 0.062 mV/V + 24 mV

DC Voltage3 – Measure Up to 100 mV 10 µV/V + 0.5 µV HP 3458A

(0.1 to 1) V 14 µV/V + 0.26 µV
(1 to 10) V 14 µV/V + 1.4 µV
(10 to 100) V 14 µV/V + 43 µV
(100 to 1000) V 14 µV/V + 470 µV

DC Current3 – Generate (0 to 100) μA 0.15 nA/μA + 27 nA Transmille 1000A

(0.1 to 1) mA 0.25 μA/mA + 0.063 μA
(1 to 10) mA 0.25 μA/mA + 0.63 μA

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 5 of 20

 Parameter/Equipment Range CMC2, 7 () Comments

DC Current3 – Generate (10 to 100) mA 0.25 μA/mA + 6.3 μA Transmille 1000A

(cont) (0.1 to 1) A 0.22 mA/A + 0.11 mA
(1 to 10) A 0.44 mA/A + 1.4 mA

DC Current3 – Measure (10 to 100) μA 19 μA/A + 0.0009 μA HP 3458A

100 μA to 1 mA 21 μA/A + 0.0052 μA
(1 to 10) mA 21 μA/A + 0.05 μA
(10 to 100) mA 32 μA/A + 1.1 μA
100 mA to 1 A 110 μA/A + 2.5 μA

(1 to 3) A 0.94 mA/A + 0.24 mA Fluke 8845A

(3 to 10) A 1.4 mA/A + 1.7 mA

DC Current3 – Clamp-On Up to 50 A 0.8 A Transmille 1000A &

Meters (>50 to 100) A 1.1 A EA002 turn coil
(>100 to 200) A 1.8 A adapter
(>200 to 300) A 2.4 A
(>300 to 400) A 3.1 A
(>400 to 500) A 3.7 A

Resistance3 – Generate (0 to 10) Ω 0.11 mΩ/Ω + 1.4 mΩ Transmille 1000A

(10 to 100) Ω 0.11 mΩ/Ω + 14 mΩ
(0.1 to 1) kΩ 0.11 Ω/kΩ + 0.14 Ω
(1 to 10) kΩ 0.11 Ω/kΩ + 1.4 Ω
(10 to 100) kΩ 0.11 Ω/kΩ + 14 Ω
(0.1 to 1) MΩ 0.11 kΩ/MΩ + 0.14 kΩ
(1 to 10) MΩ 0.42 kΩ/MΩ + 1.0 kΩ

Resistance3 – Measure (0 to 10) Ω 0.014 mΩ/Ω + 0.09 mΩ HP 3458A

(10 to 100) Ω 0.014 mΩ/Ω + 0.8 mΩ
(0.1 to 1) kΩ 0.013 mΩ/Ω + 2.6 mΩ
(1 to 10) kΩ 0.013 mΩ/Ω + 20 mΩ
(10 to 100) kΩ 14 mΩ/kΩ + 150 mΩ
(0.1 to 1) MΩ 18 Ω/MΩ + 2.9 Ω
(1 to 10) MΩ 0.07 kΩ/MΩ + 0.1 kΩ

(1 to 100) MΩ 7.8 kΩ/MΩ + 24 kΩ Fluke 8845A

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 6 of 20

 Parameter/Range Frequency CMC2, 7 () Comments

AC Voltage3 – Generate

(0.1 to 1) V 60 Hz & 1 kHz 0.64 mV/V + 0.21 mV Transmille 1000A

(1 to 10) V 0.60 mV/V + 2.6 mV
(10 to 100) V 0.69 mV/V + 21 mV
(0.1 to 1) kV 0.60 V/kV + 0.42 V

AC Voltage3 – Measure

(0.1 to 1) V 1 kHz 58 μV/V + 18 μV HP 3458A

(1 to 10) V 20 Hz to 1 kHz 0.03 mV/V + 1 mV

(1 to 20) kHz 0.1 mV/V + 0.6 mV
(20 to 100) kHz 0.8 mV/V + 0.2 mV
100 kHz to 1 MHz 9.4 mV/V + 6.4 mV

(10 to 100) V 20 Hz to 1 kHz 0.18 mV/V + 3 mV

(100 to 700) V 0.21 mV/V + 250 mV

AC Current3 – Generate

(0 to 0.1) mA 60 Hz & 1 kHz 0.17 μA/mA + 0.40 µA Transmille 1000A

(0.1 to 1) mA 0.081 μA/mA+ 0.79 µA
(1 to 10) mA 0.040 μA/mA+ 8.0 µA
(10 to 100) mA 0.57 μA/mA+ 73 µA
(0.1 to 1) A 0.57 mA/A+ 0.73 mA
(1 to 10) A 0.39 mA/A+ 15 mA

AC Current3 – Measure

Up to 10 mA 1 kHz 1.1 μA/mA + 5.6 μA Fluke 8845A

(10 to 100) mA 0.7 μA/mA + 47 μA
(100 to 400) mA 0.45 μA/mA + 530 μA
400 mA to 1 A 720 μA/A + 480 μA
(1 to 3) A 0.91 mA/A + 3.6 mA
(3 to 10) A 0.88 mA/A + 11 mA

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 7 of 20

 Parameter/Range Frequency CMC2, 7 () Comments

AC Current3 – Clamp-On
Meters

(50 Hz, 60 Hz) Up to 50 A 0.8 A Transmille 1000A &

(>50 to 100) A 1.1 A EA002 turn coil
(>100 to 200) A 1.8 A adapter
(>200 to 300) A 2.4 A
(>300 to 400) A 3.1 A
(>400 to 500) A 3.7 A

Insulation Resistance3 –

Fixed Points 100 kΩ 0.12 kΩ

200 kΩ 0.35 kΩ
300 kΩ 0.35 kΩ
400 kΩ 0.58 kΩ
500 kΩ 0.81 kΩ
600 kΩ 0.81 kΩ
700 kΩ 1 kΩ
800 kΩ 1 kΩ
900 kΩ 1 kΩ
1 MΩ 0.0024 MΩ
5 MΩ 0.0058 MΩ
10 MΩ 0.13 MΩ
20 MΩ 0.04 MΩ
30 MΩ 0.04 MΩ
40 MΩ 0.072 MΩ
50 MΩ 0.072 MΩ
60 MΩ 0.092 MΩ
70 MΩ 0.092 MΩ
80 MΩ 0.13 MΩ
90 MΩ 0.13 MΩ
100 MΩ 0.25 MΩ
200 MΩ 0.48 MΩ
300 MΩ 0.72 MΩ
400 MΩ 0.96 MΩ
500 MΩ 1.2 MΩ
600 MΩ 1.7 MΩ
700 MΩ 1.7 MΩ
800 MΩ 2.1 MΩ
900 MΩ 2.1 MΩ
1 GΩ 0.0091 GΩ
5 GΩ 0.062 GΩ
10 GΩ 0.12 GΩ
20 GΩ 0.26 GΩ
30 GΩ 0.38 GΩ

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 8 of 20

 Parameter/Frequency Range CMC2, 7 () Comments

Insulation Resistance3 –
(cont)
Decade resistance
Fixed Points 40 GΩ 0.63 GΩ
50 GΩ 0.63 GΩ
60 GΩ 0.88 GΩ
70 GΩ 0.88 GΩ
80 GΩ 1.3 GΩ
90 GΩ 1.3 GΩ
100 GΩ 1.3 GΩ

VI. Fluid Quantities

Parameter/Equipment Range CMC2 () Comments

Hydrometry –

Hydrometers (600 to 1000) kg/m³ 0.12 kg/m³ Cuckow method

(1000 to 1500) kg/m³
(1500 to 2000) kg/m³

API Hydrometers and (-1 to 101) API 0.011 API

Thermo-hydrometers
(API Scale for
Petroleum Products)

Volume – Laboratory 0.5 mL 0.0017 mL Gravimetric method

Glassware Single 1 mL 0.0027 mL using analytical balance
Volume Pipettes 2 mL 0.0033 mL per TM-CR-03 based ISO
5 mL 0.005 mL 4787, NIST SOP 14
10 mL 0.0066 mL
20 mL 0.01 mL
25 mL 0.01 mL
50 mL 0.017 mL
100 mL 0.027 mL

One-Mark Volumetric 1 mL 0.0082 mL

Flasks 2 mL 0.0082 mL
5 mL 0.0082 mL
10 mL 0.0082 mL
20 mL 0.013 mL

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 9 of 20

 Parameter/Equipment Range CMC2 () Comments

One-Mark Volumetric 25 mL 0.013 mL Gravimetric method

Flasks (cont) 50 mL 0.02 mL using analytical balance
100 mL 0.033 mL per TM-CR-03 based on
200 mL 0.05 mL ISO 4787, NIST SOP 14
250 mL 0.05 mL
500 mL 0.082 mL
1000 mL 0.13 mL
5000 mL 0.4 mL

Graduated Pipettes 0.1 mL 0.002 mL Gravimetric method

0.2 mL 0.002 mL using analytical balance
0.5 mL 0.002 mL per TM-CR-03 based on
1 mL 0.0023 mL ISO 4787, NIST SOP 14
2 mL 0.0033 mL
5 mL 0.0058 mL
10 mL 0.0091 mL
20 mL 0.033 mL
25 mL 0.033 mL

Graduated Measuring 5 mL 0.011 mL Gravimetric method

Cylinders 10 mL 0.013 mL using analytical balance
25 mL 0.082 mL per TM-CR-03 based on
50 mL 0.14 mL ISO 4787, NIST SOP 14
100 mL 0.2 mL
250 mL 0.36 mL
500 mL 0.57 mL
1000 mL 0.96 mL
2000 mL 1.5 mL

Plastic Graduated 10 mL 0.033 mL Gravimetric method

Measuring Cylinders 25 mL 0.11 mL using analytical balance
50 mL 0.19 mL per TM-CR-03 based on
100 mL 0.26 mL ISO 4787, NIST SOP 14
250 mL 0.47 mL
500 mL 0.7 mL
1000 mL 1.1 mL
2000 mL 1.9 mL
4000 mL 7.3 mL

Burettes 1 mL 0.0020 mL Gravimetric method

2 mL 0.0033 mL using analytical balance
5 mL 0.0033 mL per TM-CR-03 based on
10 mL 0.0066 mL ISO 4787, NIST SOP 14

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 10 of 20

 Parameter/Equipment Range CMC2 () Comments

Burettes (cont) 25 mL 0.010 mL Gravimetric method

50 mL 0.017 mL using analytical balance
100 mL 0.033 mL per TM-CR-03 based on
ISO 4787, NIST SOP 14

Pyknometers 1 mL 0.0023 mL Gravimetric method

2 mL 0.0023 mL using analytical balance
5 mL 0.0023 mL per TM-CR-03 based ISO
10 mL 0.0023 mL 3507
25 mL 0.005 mL
50 mL 0.010 mL
100 mL 0.010 mL

Centrifuge Tube 0.1 mL 0.0066 mL Gravimetric method

0.3 mL 0.010 mL using analytical balance
0.5 mL 0.017 mL per TM-CR-03 based on
1 mL 0.017 mL ISO 4787, NIST SOP 14
2 mL 0.033 mL
3 mL 0.033 mL
5 mL 0.066 mL
10 mL 0.17 mL
25 mL 0.34 mL
100 mL 0.57 mL

Imhoff Cone (0 to 2) mL 0.033 mL Gravimetric method

(>2 to 10) mL 0.17 mL using analytical balance
(>10 to 40) mL 0.34 mL per TM-CR-03 based on
(> 40 to 100) mL 0.66 mL ISO 4787, NIST SOP 14
(>100 to 1000) mL 3.3 mL

Water Trap 2 mL 0.0082 mL Gravimetric method

5 mL 0.017 mL using analytical balance
10 mL 0.033 mL per TM-CR-03 based on
25 mL 0.033 mL ISO 4787, NIST SOP 14

Piston Operated
Volumetric Apparatus
(POVA) –

Piston Pipettes (>10 to 20) µL 0.031 µL Gravimetric method

50 µL 0.042 µL using analytical balance
100 µL 0.094 µL per TM-CR-03 based on
200 µL 0.34 µL ISO 8655-6:2002

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 11 of 20

 Parameter/Equipment Range CMC2 () Comments

Piston Operated
Volumetric Apparatus
(POVA) – (cont)

Piston Pipettes 500 µL 1.3 µL Gravimetric method

1000 µL 2.5 µL using analytical balance
2000 µL 5.7 µL per TM-CR-03 based on
5000 µL 14 µL ISO 8655-6:2002
10 000 µL 21 µL

Piston Burettes 1 mL 0.0010 mL

2 mL 0.0020 mL
5 mL 0.0050 mL
10 mL 0.0070 mL
20 mL 0.014 mL
25 mL 0.018 mL
50 mL 0.025 mL
100 mL 0.030 mL

Dispensers (>0.01 to 0.02) mL 0.000 034 mL

0.02 mL 0.000 034 mL
0.05 mL 0.000 042 mL
0.1 mL 0.000 095 mL
0.2 mL 0.000 60 mL
0.5 mL 0.0012 mL
1 mL 0.0029 mL
2 mL 0.0058 mL
5 mL 0.012 mL
10 mL 0.029 mL
25 mL 0.058 mL
50 mL 0.12 mL
100 mL 0.29 mL
200 mL 0.29 mL

VII. Magnetic Quantities

Parameter/Equipment Range CMC2 () Comments

Magnetometers³ Up to 80 Gauss 0.85 Gauss FW BELL 5170 Gauss

Gaussmeters meter
(Positive and Negative
Polarity)

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 12 of 20

VIII. Mechanical

Parameter/Equipment Range CMC2, 4, 9 () Comments

Vibration3 – Measuring
Equipment

Peak Acceleration 0.4 g pk (3.92 m/s2) 0.030 g pk (0.29 m/s²) Back-to-back comparison
@ 7 Hz using portable reference
calibrator (shaker and
0.8 g pk (7.84 m/s2) 0.038 g pk (0.37 m/s²) transducer)
@ 10 Hz

1 g pk (9.81 m/s2) 0.039 g pk (0.38 m/s²)

@ 30 Hz to 2 kHz

1 g pk (9.81 m/s2) 0.054 g pk (0.53 m/s²)

(>2 to 10) kHz

Pressure Gages,
Calibrators3 –

Pneumatic (-9 to 0) psig 0.0035 psig Precision pressure

(-62.1 to 0) kPa 0.024 kPa indicator Mensor CPG
2500 & vacuum
transducer Mensor CPT
6020, Fluke 754

( -5 to 5) mbar 0.0059 mbar Digital Pressure Gauge

0.59 Pa Additel ADT681-05-
DP2 BAR

(0 to 15) psig 0.0018 psig Precision pressure

(0 to 0.103) kPa 0.013 kPa indicator Mensor CPG
2500 & pressure
(15 to 87) psig 0.011 psig transducer Mensor CPR
(0.103 to 0.60) kPa 0.077 kPa 2550, Fluke 754

Hydraulic (87 to 1015.26) psi 0.007 % Oil operated deadweight

(0.6 to 7.0) MPa tester, DH-Budenberg
CPB 5800 (low pressure
piston)

(1015.26 to 10 152.0) psig 0.0063 % Oil operated dead-

(7 to 70) MPa weight tester, DH-
Budenberg CPB 5800
(high pressure piston)

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 13 of 20

 Parameter/Equipment Range CMC2, 9 () Comments

Pressure Transmiters3 –

Pneumatic (-9 to 0) psig 0.0053 psig Precision pressure

(-62.1 to 0) kPa 0.036 kPa indicator Mensor CPG
2500; vacuum transducer
Mensor CPT 6020 &
amperemeter 6 ½ digits
Fluke 8845A

( -5 to 5) mbar 0.0059 mbar Digital Pressure Gauge

0.59 Pa Additel ADT681-05-DP2
BAR amperemeter 6 ½
digits Fluke 8845A

(0 to 15) psig 0.0062 psig Precision pressure

(0 to 103.4) kPa 0.043 kPa indicator Mensor CPG
2500; pressure transducer
Mensor CPR 2550 &
amperemeter 6½ digits
Fluke 8845A

(15 to 87) psig 0.037 psig Oil operated dead-weight

(103.4 to 599.8) kPa 0.26 kPa tester DH-Budenberg CPB
5800 (low pressure piston)
& amperemeter 6½ digits
Fluke 8845A

(87 to 1015.26) psig 0.041 % Oil operated dead-weight

Hydraulic (599.8 to 7000) kPa tester DH-Budenberg CPB
5800 (low pressure piston)
(1015.26 to 10 152) psig 0.041 % & amperemeter 6½ digits
(7 to 70) MPa Fluke 8845A

Pressure Safety Valve (-9 to -1) psi 0.4 % Vacuum & pressure
(PSV´s) & Pressure (-62.1 to -1) kPa indicator
Switch3
(1 to 10 000) psi 0.1 %
(1 to 68.95) MPa

Scales & Balances3 (10 to 100) mg 0.013 mg Comparison with OIML

100 mg to 100 g 0.02 mg Class E2 weights
100 mg to 200 g 0.082 mg

100 mg to 2100 g 0.91 mg Comparison with OIML

(1 to 10 000) g 9.1 mg Class F1 weights

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 14 of 20

 Parameter/Equipment Range CMC2 () Comments

Scales & Balances3 (10 to 32 000) g 91 mg Comparison with OIML

(cont) (50 to 61 000) g 0.9 g Class M1 weights
(0.5 to 160) kg 9.1 g
(2 to 200) kg 18 g
(2 to 500) kg 45 g

(2 to 1000) kg 83 g

(2 to 2000) kg 0.17 kg

Mass –

OIML Classes F2, 1 mg 0.0091 mg Mass comparator & inter-

M1, M2 & M3 2 mg 0.0091 mg comparison with OIML
5 mg 0.0091 mg Class F1 weights
10 mg 0.0091 mg
20 mg 0.0091 mg
50 mg 0.0091 mg

OIML Classes F1, 0.1 g 0.0093 mg Mass comparator & inter-

F2, M1, M2 & M3 0.2 g 0.0093 mg comparison with OIML
0.5 g 0.0094 mg Class E2 weights
1g 0.011 mg
2g 0.012 mg
5g 0.013 mg
10 g 0.018 mg
20 g 0.028 mg
50 g 0.063 mg
100 g 0.15 mg
200 g 0.25 mg
500 g 0.6 mg
1000 g 1.2 mg

OIML Classes F2, 2 kg 9.6 mg Mass comparator & inter-

M1, M2 & M3 comparison with OIML
Class F1 and Class F2
OIML Classes M1, 5 kg 91 mg weights
M2 & M3 10 kg 110 mg
20 kg 310 mg

Torque Tools & (1 to 10) Nꞏm (0.0005ꞏreading + AWS TT-QC-100I-1/4

Torque Wrenches 0.0038) Nꞏm torque transducer and
display

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 15 of 20

Parameter/Equipment Range CMC2, 9 () Comments

Torque Tools & (10 to 100) Nꞏm (0.0028ꞏreading + 0.12) Nꞏm AWS ITI-1000
Torque Wrenches torque transducer &
(cont) display

(100 to 1000) Nꞏm (0.0039ꞏreading + 0.37) Nꞏm AWS ITS-750 torque

transducer & display

Torque Transducers (0.113 to 1.13) Nꞏm (9.0 × 10-5X + 5.0 × 10-5) Nꞏm Comparison with
with Indicators³ (1.13 to 11.3) Nꞏm (5.3 × 10-4X – 1.7 × 10-4) Nꞏm torque arm and
(11.3 to 113) Nꞏm (6.7 × 10-4X – 1.2× 10-2) Nꞏm OIML class F1, F2 &
(113 to 1016) Nꞏm (1.8 × 10-3X – 2.3 × 10-1) Nꞏm M1 weights

X = reading value in
Nꞏm

Force Transducers
with Indicators³ –

Tension & (0.044 to 1) kN (6.0 × 10-4X + 5.4 × 10-6) kN ISO 376 by

Compression (1 to 50) kN (1.0 × 10-3X + 3.3 × 10-3) kN comparison with
(50 to 500) kN (9.0 × 10-4X + 1.8 × 10-3) kN reference Precision
load cells

X = reading value in
kN

Force Gauges³ – (44 to 1000) N 0.13 % ISO 7500-1 by

Tension & (>1 to 5) kN 0.19 % comparison with
Compression (>5 to 50) kN 0.19 % reference Precision
(>50 to 500) kN 0.12 % load cells

Force – Tension & (44 to 1000) N 0.12 % ISO 7500-1 using

Compression Testing (>1 to 5) kN 0.14 % Precision load cells
Machines3 (>5 to 50) kN 0.13 %
(>50 to 500) kN 0.12 %
(>500 to 3000) kN 0.13 %

Force Testing (10 to 840) mm/min 0.12 % Stopwatches,

Machines – indicator & caliper
Crosshead Speed3

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 16 of 20

IX. Optical Quantities

Parameter/Equipment Range CMC2, 9 () Comments

Light Meters –
Visible Light (Luxmeter) (20 to 3000) lux (8.6 × 10-5X + 1.0) lux Reference lamp

X = reading value in
lux

Irradiance – (>200 to 600) µW/cm² 3.4 % Master radiometer

UV-A meters (>600 to 1000) µW/cm² 3.4 %
(Radiometers) (>1000 to 2000) µW/cm² 3.2 %
(>2000 to 3000) µW/cm² 3.2 %
(>3000 to 4000) µW/cm² 3.2 %

Spectrophotometers3 –

Absorbance:
λ: (235 to 350) nm (0.09 to 0.28) A 0.0037 A Potassium
(0.19 to 0.57) A 0.0045 A Dichromate
(0.29 to 0.87) A 0.0049 A quartz cells
(0.39 to 1.15) A 0.0057 A
(0.48 to 1.45) A 0.0067 A

λ: (440 to 635) nm (0.52 to 0.56) A 0.0027 A Neutral

(0.66 to 0.77) A 0.0027 A density glass
(0.95 to 1.11) A 0.0027 A filters

Transmittance:

λ: (440 to 635) nm (7.71 to 11.22) % 0.047 % of transmittance

(16.81 to 21.71) % 0.10 % of transmittance
(27.44 to 30.34) % 0.17 % of transmittance

Wavelength:

SBW: (0.1, 0.25, 0.5, (241 to 638) nm 0.12 nm Holmium glass

1, 1.5, 2, 3, 4, 5) nm filter

SBW: (0.1, 0.25, 0.5, (440 to 880) nm 0.12 nm Didymium

1, 1.5, 2, 3, 4, 5) nm glass filter

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 17 of 20

X. Thermodynamics

Parameter/Equipment Range CMC2, 4 () Comments

Digital Thermometers3 (-30 to -20) °C 0.038 °C Digital indicator whit

(-20 to 0) °C 0.035 °C thermocouple type “R/S”
(0 to 140) °C 0.042 °C and temperature bath
(140 to 231) °C 0.059 °C
(231 to 420) °C 0.037 °C
(420 to 450) °C 1.3 °C
(450 to 700) °C 1.4 °C
(700 to 950) °C 1.4 °C
(950 to 1200) °C 1.8 °C

Mechanical Thermometers3 (-30 to 420) °C 0.15 °C Digital thermometer &

temperature bath

Liquid-In-Glass (-30 to 100) °C 0.07 °C Digital thermometer &

Thermometers3 (100 to 150) °C 0.30 °C temperature bath
(150 to 200) °C 0.40 °C
(200 to 300) °C 0.80 °C
(300 to 420) °C 1.0 °C

Temperature Transmiters3 (-30 to -20) °C 0.05 °C Digital thermometer &

(-20 to 0) °C 0.048 °C amperemeter, &
(0 to 50) °C 0.056 °C temperature bath
(50 to 100) °C 0.067 °C
(100 to 150) °C 0.08 °C
(150 to 200) °C 0.10 °C
(200 to 300) °C 0.14 °C
(300 to 420) °C 0.18 °C

IR Thermometers (-15 to 0) °C 0.49 °C Comparison with Fluke

(>0 to 35) °C 0.43 °C 4180 black body, or
(>35 to 75) °C 0.44 °C Fluke 4181 black body
(>75 to 100) °C 0.47 °C
(>100 to 150) °C 0.56 °C Emissivity = 0.950
(>150 to 200) °C 0.65 °C Spectral band: (8 to 14)
(>200 to 300) °C 0.90 °C µm
(>300 to 400) °C 1.2 °C
(>400 to 500) °C 1.5 °C

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 18 of 20

 Parameter/Equipment Range CMC2, 4 () Comments

Temperature3 – Temperature
Sources and Temperature
Controlled Enclosures

Autoclaves, (-80 to 420) ºC 0.039 °C Digital thermometer

Cold Rooms, (420 to 700) ºC 1.9 °C
Dry Wells, (700 to 1000) °C 2.9 °C
Environment Chambers,
Freezers,
Furnace,
Incubators,
Liquid Baths,
Ovens,
Refrigerators,
Sterile Rooms,
Stability Rooms,
Trucks,
Warehouses.

Relative Humidity – (20 to 90) % RH 2.1 % RH Thermo-hygrometer

Thermo Hygrometer Vaisala HM40 &
humidity chamber

Relative Humidity3 – (20 to 90) % RH 2.3 % RH Thermo-hygrometer

Humidity Chambers Vaisala HM40

XI. Time & Frequency

Parameter/Equipment Range CMC2, 4 () Comments

Non-Contact Tachometers (100 to 3000) RPM 0.20 RPM Transmille 1000A,

(4000 to 60 000) RPM 1.5 RPM multicalibrator &
Transmille EA003
optical tachometer
adapter

Frequency – Measuring (20 to 100) Hz 0.01 Hz Transmille 1000A

Equipment (100 to 1) kHz 0.1 Hz multicalibrator
(1 to 10) kHz 0.6 Hz
(10 to 100) kHz 3 Hz

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 19 of 20

 Parameter/Equipment Range CMC2, 4 () Comments

Stopwatches, Hours meters Up to 7200 s 0.0026 s Direct comparison

& Timers³ Up to 32 768 s 0.0055 s with reference
stopwatches

_______________________________
1
This laboratory offers commercial calibration service and field calibration service.
2
Calibration and Measurement Capability Uncertainty (CMC) is the smallest 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.
4
The type of instrument or material being calibrated is defined by the parameter. This indicates the
laboratory is capable of calibrating instruments that generate the values in the ranges indicated for the
listed measurement parameter.
5
This scope meets A2LA’s P112 Flexible Scope Policy.
6
In the statement of CMC, L is the numerical value of the nominal length in the units indicated.
7
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. CMCs are expressed as either a specific value that covers the full range or as a
fraction/percentage of the reading plus a fixed floor specification.
8
Dimensional testing is not equivalent to calibration and does not serve to transfer metrological
traceability.
9
In the statement of CMC, percentages are percentages of reading, unless otherwise indicated.

(A2LA Cert. No. 4150.01) Revised 04/15/2024 Page 20 of 20

 Accredited Laboratory
A2LA has accredited

TECHNOLOGY & METROLOGY TEGMETRO S.A.

Quito, ECUADOR
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 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 28th day of April 2023.

_______________________
Mr. Trace McInturff, Vice President, Accreditation Services
For the Accreditation Council
Certificate Number 4150.01
Valid to December 31, 2024

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