Dimensional Calibration
SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 & ANSI/NCSL Z540-1-1994
In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to our laboratory to perform the following Dimensional calibrations for Gage Blocks, Length Bars, Plug Gages (OD), Taper Pipe Thread Plugs, Taper Pipe Thread Rings, Thread Plug Gages and Setting Plug Gages, Ring Gages (ID), Thread Ring Gages, Calipers and Verniers, Height Gages, Digital Indicators, Dial and Test Indicators, Micrometers, Pin Gages, Profilometers, Rules and Tapes, and Optical Comparators and Measuring Machines.
Some of our featured equipment for dimensional calibration includes:
Labmaster® Universal - 80 Inch Capacity
Please see full details below or on our full Scope of Accreditation (PDF) or learn more about our in-lab calibration service.
Dimensional Calibration Scope Includes:
|
Parameter/Equipment |
Range | CMC 2,4 (±) | Comments |
|
Gage Blocks |
Up to 4 in (5 to 20) in |
(4.9 + 2L) μin (31 + 1.2L) μin |
Method: ACP-023; by mechanical comparison UMM DMS680, Pratt & Whitney 1000M |
|
Length Bars |
Up to 80 in |
(18 + 2.2L) μin |
Method: ACP-010; |
|
Plug Gages (OD) –
Taper Diameter |
Up to 12 in
(0.039 to 5.7) in (0.039 to 5.7) in |
(17 + 3.9D) μin
5 μin (80 + 2L) μin |
Method: ACP-024; IAC Masterscanner IAC Masterscanner |
|
Taper Pipe Thread Plugs – Effective Pitch Diameter Simple Pitch Diameter Major Diameter Minor Diameter Thread Pitch Accumulated Pitch Deviation Flank Angles
Taper |
(0.039 to 5.7) in (0.039 to 5.7) in (0.039 to 5.7) in (0.039 to 5.7) in (0.039 to 5.7) in (0.039 to 5.7) in Pitch ≤ 0.0394 in (1 mm) Pitch > 0.0394 in (1 mm) (0.039 to 5.7) in |
(80 + 5L) μin (80 + 5L) μin (80 + 5L) μin (100 + 5L) μin (40 + 5L) μin (40 + 5L) μin (0° 6'' 0')/p 0° 6'' 0' 22 μin |
Method: ACP-025; IAC Masterscanner
p = Pitch |
|
Taper Pipe Thread Rings – Effective Pitch Diameter Simple Pitch Diameter Major Diameter Minor Diameter Thread Pitch Accumulated Pitch Deviation Flank Angles
Taper |
(0.118 to 6) in (0.118 to 6) in (0.118 to 6) in (0.118 to 6) in (0.118 to 6) in (0.118 to 6) in Pitch ≤ 0.0394 in (1 mm) Pitch > 0.0394 in (1 mm) (0.118 to 6) in |
(80 + 5L) μin (80 + 5L) μin (80 + 5L) μin (100 + 5L) μin (40 + 5L) μin (40 + 5L) μin (0° 6'' 0')/p 0° 6'' 0' 22 μin |
Method: ACP-024; IAC Masterscanner
p = Pitch
|
|
Thread Plug Gages and Setting Plug Gages – Effective Pitch Diameter Simple Pitch Diameter Major Diameter Minor Diameter Thread Pitch Accumulated Pitch Deviation Flank Angles
Taper |
(2 to 120) TPI - Up to 12 in
(0.039 to 5.7) in (0.039 to 5.7) in (0.039 to 5.7) in (0.039 to 5.7) in (0.039 to 5.7) in (0.039 to 5.7) in Pitch ≤ 0.0394 in (1 mm) Pitch > 0.0394 in (1 mm) (0.039 to 5.7) in |
(100 + 2D) μin
(80 + 5L) μin (80 + 5L) μin (80 + 5L) μin (100 + 5L) μin (40 + 5L) μin (40 + 5L) μin (0° 6'' 0')/p 0° 6'' 0' 22 μin |
Method: ACP-025; IAC Masterscanner
p = Pitch
|
|
Ring Gages (ID) –
Taper Diameter |
(0.06 to 12) in
(0.039 to 6) in (0.039 to 6) in |
(19 + 2D) μin
5 μin (40 + 2L) μin |
Method: ACP-026;
IAC Masterscanner IAC Masterscanner |
|
Thread Ring Gages – Effective Pitch Diameter Simple Pitch Diameter Major Diameter Minor Diameter Thread Pitch Accumulated Pitch Deviation Flank Angles
Taper |
Up to 6 in (0.118 to 6) in (0.118 to 6) in (0.118 to 6) in (0.118 to 6) in (0.118 to 6) in (0.118 to 6) in Pitch ≤ 0.0394 in (1 mm) Pitch > 0.0394 in (1 mm) (0.118 to 6) in |
(100 + 2D) μin (80 + 5L) μin (80 + 5L) μin (80 + 5L) μin (100 + 5L) μin (40 + 5L) μin (40 + 5L) μin (0° 6'' 0')/p 0° 6'' 0' 22 μin |
Method: ACP-027; Setting plugs IAC Masterscanner
p = Pitch
|
|
Bore Gages |
Up to 6 in |
48 μin | Ring Gages |
|
Calipers3 |
Up to 80 in |
(400 + 2.5L) μin |
Method: ACP-004; |
|
Height Gages3 |
Up to 40 in | 400 μin |
Method: ACP-013; gage blocks, length rods |
|
Digital, Dial and Test Indicators3 |
Up to 2 in |
70 μin |
Method: ACP-007; gage blocks |
|
LVDT |
Up to 8 in |
0.002 in |
Method: ACP-007A |
|
Micrometers3 – Outside Inside Depth |
Up to 36 in (37 to 60) in Up to 40 in Up to 12 in |
33 + 10L) μin (360 + 21L) μin (51 + 1.4L) μin 60 μin |
Method: ACP-016; Gage blocks & rod standards Universal measuring machine, Pratt & Whitney 1000M Gage blocks |
|
Laser Micrometers |
Up to 2 in | 39 μin | Plug gages |
|
Parallels
|
Up to 30 in | 45 μin | Surface plate LVDT Indicator |
|
Pin Gages3 |
(0.011 to 1) in (0.011 to 1) in |
(19 + 2D) μin 56 μin |
Method: ACP-019; universal measuring machine, DMS 680 Micrometer |
|
Surface Roughness Standards |
(15 to 150) μin Ra | 3.5 μin | Verification of specimens per ASME B46.1 |
|
Profilometers |
117 μin Ra | 1.5 μin | Method: ACP-021; roughness specimen |
|
Clinometers and Inclinometers, and Electronic Levels
|
Up to 90° | 0.075° | Sine plate/gage blocks |
|
Levels (Spirit, Bubble, Machinist)3 |
Up to 15 inches | 400 μin | Surface plate and gage blocks |
|
Rules and Tapes3 |
Up to 100 ft | 0.04 in | Method: ACP-046; steel rule/optical scale |
|
Optical Comparators and Measuring Machines3 – Axis Linearity Magnification
Angularity
|
Up to 12 in 5x Up to 360 ° |
80 μin 440 μin 0’65’’ |
Master calibration artifact Magnification checker scale
Sine bar & gage blocks or angle blocks |
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See our Entire Scope of Accreditation:
Certificate Number: 1848.01
1 This laboratory offers commercial calibration & field calibration services.
2 Calibration & 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 & 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 & 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 & 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, percentages are percentage of reading, unless otherwise indicated, L is the numerical value of the nominal length of the device measured in inches, R is the numerical value of the resolution of the device in microinches, D is the numerical value of the nominal diameter of the device measured in inches, I.V. represents “Indicated Value”, & Ra is the numerical value of the nominal roughness of the surface measured in micrometers roughness.
5 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.
6 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.
7 This scope meets A2LA’s P112 Flexible Scope Policy.