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A2LA Accreditation

The American Association for Laboratory Accreditation (A2LA) is a nonprofit, non-governmental, public service, membership society. The mission of A2LA is to provide comprehensive services in laboratory accreditation and laboratory-related training. Laboratories are accredited in the following fields: Acoustics & Vibration, Biological, Calibration, Chemical, Construction Materials, Electrical, Environmental, Geotechnical, Mechanical, Nondestructive, and Thermal. In addition to these broad fields, specifically-tailored programs are available for animal drugs, automotive electromagnetic compatibility (EMC), environmental lead (Pb), fertilizers, food testing, and putting green materials testing. Aldinger's scope identifies the specific testing or calibration capabilities for which we are accredited.

Little Rock, AR Lab - A2LA Accreditiation

Go to: Dallas, TX Lab - A2LA Accreditation »

SCOPE OF ACCREDITATION TO ISO/IEC 17025:2005 & ANSI/NCSL Z540-1-1994

ALDINGER COMPANY
8023 Interstate 30
Little Rock, AR 72209
Dustin R. Detten    Phone: 214 638 1808

Valid To: August 31, 2020

Certificate Number: 1509.02

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

DIMENSIONAL

Parameter/Equipment Range CMC2, 4 (±) Comments
Calipers3, 5 Up to 24 in
(24 to 48) in

(48 to 96) in
0.6R
1100 μin

1500 μin
Gage blocks (field)


Gage blocks (lab)
Dial and Test Indicators3, 5 Up to 3 in 99 μin Gage blocks, ULM, SuperMicTM
Height Gages3, 5 Up to 36 in 0.6R Gage blocks
Length Standards Up to 22 in (37 + 1.5L) μin ULM/SuperMicTM, gage blocks
Micrometers3, 5 Up to 4 in

(4 to 24) in
(24 to 48) in
(48 to 96) in
33 μin

0.6R
1100 μin
1500 μin
Gage blocks (field)

Gage blocks (lab)
Plain Ring Gages (0.125 to 12) in (22 + 1.5L) μin ULM, gage blocks
Thread Plugs –
  Pitch Diameter
  Major Diameter

Pitch Diameter (Taper)

(0.040 to 12) in
(0.040 to 12) in

(0.040 to 12) in

(69 + 1.5L) μin
(18 + 1.5L) μin

(75 + 1.5L) μin

Three-wire method, direct measure

Two-wire method, direct measure
Surface Plates3,5 (1.5 X 1.5) to (4 X 8) ft


(1.5 X 1.5) to (4 X 8) ft
(48 + 0.41DL) μin



31 μin
Leveling System (DL is diagonal of the plate)

Repeat reading gage
Optical Comparators3,5

  X-Axis
  Y-Axis
  Angle



Up to 12 in
Up to 12 in
(0 to 90) Degrees



(250 + 91L) μin
(250 + 91L) μin
0.029 Degrees



Glass scale

Angle Blocks
Rulers3,5

Tape Measures3,5


PI Tapes3,5
Up to 40 in

Up to 40 in
Up to 100 ft

Up to 72 in
0.013 in

0.013 in
0.062 in

910 μin
Standard ruler

Standard ruler
Standard tape

Gage blocks

ELECTRICAL - DC/Low Frequency

Range/Equipment Frequency CMC2, 6, 7, 8 (±) Comments
AC Current – Measure
  1 A
  3 A

60 Hz to 1 kHz
60 Hz to 1 kHz

0.1 % + 0.4 mA
0.1 % + 1.8 mA

HP 34401
AC Current – Generate

  (29 to 330) μA
  330 μA to 3.2 mA
  (3.3 to 33) mA
  (33 to 330) mA
  330 mA to 3.3 A
  (3.3 to 10) A

  (16 to 150) A
  (150 to 1000) A



45 Hz to 10 kHz
45 Hz to 10 kHz
45 Hz to 10 kHz
45 Hz to 10 kHz
45 Hz to 10 kHz
45 Hz to 10 kHz

(60 to 100) Hz
(60 to 100) Hz



0.13 % + 0.1 μA
0.10 % + 0.15 μA
0.07 % + 2 μA
0.083 % + 20 μA
0.10 % + 100 μA
0.21 % + 2 mA

0.21 % + 10 mA
0.23 % + 0.1 A



Fluke 5522A






Using 50 turn coil
AC Voltage – Generate

  (1 to 330) mV
  (0.330 to 3.3) V
  (3.3 to 33) V
  (33 to 330) V

  (330 to 1020) V



45 Hz to 10 kHz
45 Hz to 10 kHz
45 Hz to 10 kHz
45 Hz to 10 kHz
(1 to 10) kHz

45Hz to 1 kHz
(1 to 5) kHz



0.018 % + 8 μV
0.018 % + 60 μV
0.017 % + 0.6 mV
0.023 % + 2 mV
0.023 % + 6 mV

0.046 % + 10 mV
0.040 % + 10 mV



Fluke 5522A
AC Voltage – Measure

100 mV
1 V
10 V
100 V
750 V



60 Hz to 3 kHz
60 Hz to 3 kHz
60 Hz to 3 kHz
60 Hz to 3 kHz
60 Hz to 3 kHz



0.069 % + 40 μV
0.064 % + 300 μV
0.064 % + 3 mV
0.064 % + 30 mV
0.064 % + 225 mV



HP 34401
Parameter/Equipment Range CMC2, 6, 8 (±) Comments
Capacitance – Generate

Low



(0.22 to 3.3) nF
(3.3 to 33) nF
(33 to 330) nF
(330 to 3300) nF



0.5 % + 10 pF
0.26 % + 100 pF
0.26 % + 300 pF
0.26 % + 3 nF



Fluke 5522A
Parameter/Equipment Range CMC2, 6, 7, 8 (±) Comments
Capacitance – Generate (cont)

High



(3.3 to 33) μF
(33 to 330) μF
(330 to 3300) μF
(3.3 to 110) mF



0.4 % + 30 nF
0.45 % + 300 nF
0.45 % + 3 μF
1.1 % + 10 μF



Fluke 5522A
DC Current – Generate
(0 to 330) μA
Up to 3.3 mA
Up to 33 mA
Up to 330 mA
Up to 3 A
(1.1 to 11) A
(11 to 20.5) A

(0 to 55) A
(55 to 150) A
(150 to 550) A
(550 to 1000) A
0.015 % + 20 nA
0.010 % + 50 nA
0.014 % + 250 nA
0.010 % + 2.5 μA
0.038 % + 40 μA
0.050 % + 500 μA
0.1 % + 750 μA

0.02 % + 2 mA
0.04 % + 2 mA
0.056 % + 25 mA
0.01 % + 38 mA
Fluke 5522A







Using 50 turn coil
DC Current – Measure, Fixed Points 10 mA
100 mA
1 A
3 A
0.076 % + 6 μA
0.05 % + 5 μA
0.1 % + 100 μA
0.14 % + 600 μA
HP 34401
DC Voltage – Generate (0 to 330) mV
Up to 3.3 V
Up to 33 V
30 to 330 V
(100 to 1000) V
0.002 % + 1 μV
0.0012 % + 2 μV
0.0013 % + 20 μV
0.0018 % + 0.15 mV
0.0019 % + 1.5 mV
Fluke 5522A
DC Voltage – Measure, Fixed Points 100 mV
1 V
10 V
100 V
1000 V
0.0054 % + 3.5 μV
0.0043 % + 7 μV
0.0036 % + 50 μV
0.0048 % + 600 μV
0.0047 % + 10 mV
HP 34401
Electrical Calibration of Temperature Controllers3, 5 (-200 to 1371) °C 1.0 °C Fluke 724 - J,K,T,E
Resistance – Generate (0 to 330) Ω
(330 to 3300) Ω
(3300 to 33 000) Ω
(33 to 330) kΩ
(330 to 3300) kΩ
(3.3 to 33) MΩ
(33 to 110) MΩ
(110 to 330) MΩ
(330 to 1100) MΩ
0.065 % + 20 mΩ
0.029 % + 100 mΩ
0.029 % + 1.0 Ω
0.0037 % + 10 Ω
0.0063 % + 150 Ω
0.026 % + 2500 Ω
0.063 % + 3.0 kΩ
0.14 % + 100 kΩ
0.14 % + 500 kΩ
Fluke 5522A
Resistance – Measure, Fixed Points 100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 MΩ
100 MΩ
0.01 % + 4 mΩ
0.01 % + 10 mΩ
0.01 % + 100 mΩ
0.01 % + 1 Ω
0.01 % + 10 Ω
0.04 % + 100 Ω
0.8 % + 10 kΩ
HP 34401
RTD Simulation –
PT385, 100 Ohms

(-200 to 0) °C
(0 to 100) °C
(100 to 400) °C
(400 to 630) °C
(630 to 800) °C

0.058 °C
0.17 °C
0.12 °C
0.14 °C
0.28 °C

Fluke 5522A
Thermocouple Simulation –

Type E





Type J





Type K





Type T



(-250 to -100) °C
(-100 to -25) °C
(-25 to 350) °C
(350 to 650) °C
(650 to 1000) °C

(-210 to -100) °C
(-100 to -30) °C
(-30 to 150) °C
(150 to 760) °C
(760 to 1200) °C

(-250 to -100) °C
(-100 to -25) °C
(-25 to 120) °C
(120 to 1000) °C
(1000 to 1372) °C

(-250 to -150) °C
(-150 to 0.0) °C
(0.0 to 120) °C
(120 to 400) °C



0.51 °C
0.16 °C
0.19 °C
0.20 °C
0.24 °C

0.28 °C
0.16 °C
0.14 °C
0.17 °C
0.23 °C

0.33 °C
0.18 °C
0.20 °C
0.24 °C
0.40 °C

0.63 °C
0.24 °C
0.16 °C
0.14 °C



Fluke 5522A
Parameter/Equipment Range CMC2, 6 (±) Comments
Welding Devices3,5 (0 to 350) ADC
(0 to 100) VDC
(100 to 700) Feed Rate IPM
0.87 ADC
0.012 VDC
3.6 IPM
Load Bank, Current Shunt, DMM

MECHANICAL

Parameter/Equipment Range CMC2 (±) Comments
Balances3, 5
(0 to 20) g
(0 to 200) g

(0 to 200) g
(0 to 1000) g
(0 to 5000) g

(0 to 20) g
(0 to 200) g
(0 to 1000) g
(0 to 5000) g
(0 to 10 000) g
(0 to 20 000) g

0.11 mg
0.69 mg

1.3 mg
6.6 mg
34 mg

0.81 mg
4.8 mg
24 mg
130 mg
370 mg
460 mg
Handbook 44 with:
Class 1 weights


Class 2 weights



Class 4 weights


Force – Universal
Testing Machines3, 5

Tension / Compression

Compression





Tension




(0 to 100) lbf

(100 to 1000) lbf
(1000 to 10 000) lbf
(10 000 to 50 000) lbf
(10 000 to 100 000) lbf
(50 000 to 500 000) lbf

(100 to 1000) lbf
(1000 to 10 000) lbf
(10 000 to 50 000) lbf




0.0064 lb

0.26 % Indication
0.24 % Indication
0.33 % Indication
0.21 % Indication
0.21 % Indication

0.23 % Indication
0.23 % Indication
0.29 % Indication




Class F weights w/ load cells
Pipettes3, 5 (1 to 50) μL
(50 to 100) μL
(100 to 500) μL
(500 to 1000) μL
(1000 to 5000) μL
(5000 to 10000) μL
0.31 μL
0.6 μL
1.3 μL
2.2 μL
12 μL
18 μL
Gravimetric method
Optical Tachometer3, 5 200 FPM
3000 FPM
29 999 FPM
1.3 FPM
1.7 FPM
3.9 FPM
Calibrated strobe
Pressure Gauges,
Transducers and
Transmitters3, 5
(0 to 10000) psig
(0 to 300) psig

(0 to 1000) psig
(0 to 300) psig
(0 to 50) psig
(0 to 5) psig
(0 to 10) inH2O
6.6 psig
0.25

2.5 psig
0.090 psig
0.19 psig
0.12 psig
0.034 inH2O
Druck DPI 104 gauges

Druck DPI 620
Vacuum3, 5 (0 to 15) psig 0.19 psig Druck DPI 610
Scales3, 5 (0 to 10) lb
(0 to 20) lb

(0 to 50) lb
(0 to 100) lb
(0 to 200) lb
(0 to 500) lb
(0 to 1000) lb
(0 to 5000) lb
(0 to 20 000) lb
0.00025 lb
0.00025 lb

0.0063 lb
0.0063 lb
0.0064 lb
0.0064 lb
0.018 lb
0.019 lb
0.021 lb
Handbook 44 with:
Class 4 weights

Class F weights
Torque Wrenches3, 5 (1 to 50) in·lbf
(30 to 400) in·lbf
(80 to 1000) in·lbf
(240 to 3000) in·lbf
0.17 in·lbf
1.8 in·lb
5.1 in·lb
21 in·lb
CDI/Norbar torque calibrator
Rotations Speed
Measurement3,5
Contact:
200 RPM
3000 RPM
20000 RPM

Optical:
3000 RPM
30000 RPM

1.5 RPM
2.4 RPM
11 RPM


1.3 RPM
3.3 RPM

Monarch PLT200
Hardness

  HRB



  HRC



  HBW 10/500

  HBW 10/500


1 to 50
51 to 79
≥ 80

20 to 39
40 to 59
60 to 70

90 to 200

200 to 600


1.0 HRB
0.65 HRB
0.49 HRB

0.45 HRC
0.36 HRC
0.37 HRC

4.0 HBW

4.8 HBW


Comparison to test blocks

THERMODYNAMIC

Parameter/Equipment Range CMC2 (±) Comments
Temperature – Measuring Equipment3, 5 (30 to 600) °C
(86 to 1112) °F
0.35 °C
0.63 °F
Fluke 9144 in dry block
Temperature – Measuring Equipment (-40 to 90) °C
(-40 to 194) °F
0.35 °C
0.63 °F
Hart 1502A/5628 PRT in wet bath (lab only)
Temperature – Measure3, 5 (-100 to 600) °C
(-148 to 1112) °F
0.81 °C
1.46 °F
Fluke 724 with thermocouple
IR Thermometer3, 5 (Amb + 10 to 400) °C 1.8 °C Omega BB703
Humidity – Measure3, 5 (10 to 90) % RH 3.0 % RH Vaisala HM141/HM046

TIME & FREQUENCY

Parameter/Equipment Range CMC2 (±) Comments
Frequency – Measure 40 Hz to 300 kHz 0.014 % Indication HP 34401
Timers and Stopwatches3, 5 < 1 hr
≥ 1 hr
0.14 sec/24 hr
0.59 sec/24 hr
Reference stopwatch

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. Calibration and Measurement Capabilities 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 and this laboratory meets A2LA R104 – General Requirements: Accreditation of Field Testing and Field Calibration Laboratories for these calibrations. 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, repeatability) 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 In the statement of CMC, L is the numerical value of the nominal length of the device measured in inches and R is the numerical value of the resolution of the device in microinches unless otherwise noted.

5 The CMC stated for calibrations performed in the laboratory is applicable for calibrations performed in the field.

6 CMC for the Fluke 5522A is based on 1-year specifications within a temperature range of 23 °C ± 5 °C. Field calibrations will be performed within 23 °C ± 5 °C.

7 CMC for the HP 34401 is based on 1-year specifications within a temperature range of 18 °C to 28 °C. Field calibrations will be performed within 18 °C to 28 °C, 30 % to 55 % humidity.

8 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’s are expressed as either a specific value that covers the full range or as a percent or fraction of the reading plus a fixed floor specification.

(A2LA Cert. No. 1509.02) Revised 5/14/2016

This is a marketing version of the official A2LA Scope of Accreditation. It has been modified from the official version to contain the logo of the accredited organization and this modification has been approved by A2LA. The content of the Scope itself has not been altered. The official version of the Scope of Accreditation may be found at: https://www.a2la.org/scopepdf/1509-02.pdf

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