Laboratory Accurate Engineering Co. Pvt. Ltd.
, 3/842, Avadi Poonamallee Road,
Senneerkuppam, Poonamallee, Chennai, Tamil Nadu
Accreditation Standard ISO/IEC 17025: 2005
Certificate Number CC-2706 Page 1 of 8
Validity 28.05.2018 to 27.05.2020 Last Amended on -
Sl. Quantity Measured / Range/Frequency *Calibration Measurement Remarks
Instrument Capability (±)
MEC
HANICAL CALIBRATION
I. DIMENSION (BASIC MEASURING INSTRUMENT, GAUGE ETC.)
1. Gauge Blocks$ Upto 25 mm 0.12 µm Using Gauge Block
(Grade “0” & >25 up to 50 mm 0.16 µm Comparator & Grade “K”
Coarser) > 50 up to 100 mm 0.22 µm Gauge Blocks By
Comparison Method
2. Thread Measuring Ø 0.17 mm to 6.35 mm 1.1 µm Using Electronic
Wires$ Comparator & Gauge
Blocks By Comparison
Method
3. Cylindrical Setting Ø 1 mm to 100 mm 1.0 µm Using Electronic
Master$ Above 100 mm 3.0 µm Comparator & Gauge
Up to 200 mm Blocks By Comparison
Method
4. Measuring Pins $ 0.3 mm to 25 mm 1.0 µm Using Electronic
(Grade “1” & Comparator & Gauge
Coarser) Blocks By Comparison
Method
5. Plain / Setting / Ø 3 mm to 100 mm 1.5 µm Using Universal Length
Master Ring Gauge$ > Ø 100 mm to 200 mm 2.5 µm Measuring M/c & Setting
Ring Gauge By
Comparison Method
6. Micrometer Setting 25 mm up to 450 mm (1+5X) µm “X” in m Using Electronic
Standards$ Comparator & Gauge
Blocks / ULM By
Comparison Method
Sangeeta Kunwar Avijit Das
Convenor Program Director
Laboratory Accurate Engineering Co. Pvt. Ltd., 3/842, Avadi Poonamallee Road,
Senneerkuppam, Poonamallee, Chennai, Tamil Nadu
Accreditation Standard ISO/IEC 17025: 2005
Certificate Number CC-2706 Page 2 of 8
Validity 28.05.2018 to 27.05.2020 Last Amended on -
Sl. Quantity Measured / Range/Frequency *Calibration Measurement Remarks
Instrument Capability (±)
7. Thread Measuring A/B/C/D 1.0 µm Using Electronic
Prism$ Comparator By
Comparison Method
8. Riser Block$ Up to 150 mm 2.0 µm Using Lever Type
> 150 mm to 300 mm 3.0 µm Indicator, Surface Plate
& Stand By Comparison
Method
9. Feeler Gauge$ 0.1 mm to 2.0 mm 1.0 µm Using Electronic
Comparator By
Comparison Method
10. Master Foil for Up to 1.25 mm 1.0 µm Using Electronic
Coating Thickness Comparator Comparison
Gauge$ Method
11. Radius Gauge$ Up to 25 mm 13.2 µm Using Video Measuring
System By Comparison
Method
12. Gauge Block Up to 250 mm 1.0 µm Using Electronic
Accessories$ Comparator & Gauge
Blocks By Comparison
Method
13. V-Block $ 300 mm x 100 mm x 6.5 µm Using Co-ordinate
(Perpendicularity, 100 mm Measuring Machine By
Flatness, Parallelism Comparison Method
& Symmetry)
14. Engineers Square / Upto 400 mm 6.0 µm Using Co-ordinate
Try Square$ Measuring Machine By
Comparison Method
Sangeeta Kunwar Avijit Das
Convenor Program Director
Laboratory Accurate Engineering Co. Pvt. Ltd., 3/842, Avadi Poonamallee Road,
Senneerkuppam, Poonamallee, Chennai, Tamil Nadu
Accreditation Standard ISO/IEC 17025: 2005
Certificate Number CC-2706 Page 3 of 8
Validity 28.05.2018 to 27.05.2020 Last Amended on -
Sl. Quantity Measured / Range/Frequency *Calibration Measurement Remarks
Instrument Capability (±)
15. Plain Plug Gauge / Upto 100 mm 1.4 µm Using Electronic
Setting Master / > Ø 100 mm to 2.0 µm Comparator & Gauge
Width Gauge / Ø 250 mm Blocks by Comparison
Thickness Gauge$ Method
16. Snap Gauge / Dial 1.2 mm to 50 mm 2.0 µm Using Gauge Blocks By
Snap Gauge / > 50 mm to 100 mm 3.0 µm Comparison Method
Adjustable Snap >100 mm to 250 mm 4.0 µm
Gauge / Plain Gap
Gauge$
17. Thread Plug Gauge$ Ø 2 mm to 200 mm 2.8 µm Using Floating Carriage
Dia. Measuring Machine,
Thread Measuring wires/
ULM By Comparison
Method
18. Thread Ring Gauge$ Ø 3 mm to 100 mm 1.9 µm Using Length Measuring
> Ø 100 mm to 200 mm 4.0 µm Machine By Comparison
Method
19. Taper Thread Plug Ø 2 mm to 100 mm 6.5 µm Using Floating Carriage
Gauge$ Dia. Measuring Machine,
Setting Master & Thread
Measuring wires / ULM
By Comparison Method
20. Taper Thread Ring Ø 3 mm to 100 mm 2.0 µm Using Universal Length
Gauge$ Measuring Machine By
Comparison Method
21. Calipers$ Up to 1000 mm (5+10x) µm “x” in m Using Caliper Checker /
(Vernier/Dial/Digital) Gauge Blocks / Length
L.C.: 0.01 mm Bars By Comparison
Method
Sangeeta Kunwar Avijit Das
Convenor Program Director
Laboratory Accurate Engineering Co. Pvt. Ltd., 3/842, Avadi Poonamallee Road,
Senneerkuppam, Poonamallee, Chennai, Tamil Nadu
Accreditation Standard ISO/IEC 17025: 2005
Certificate Number CC-2706 Page 4 of 8
Validity 28.05.2018 to 27.05.2020 Last Amended on -
Sl. Quantity Measured / Range/Frequency *Calibration Measurement Remarks
Instrument Capability (±)
22. Depth Gauge$ Up to 600 mm (5+10x) µm “x” in m Using Depth Micro
(Vernier/Dial/Digital) Checker & Lever type
L.C.: 0.01 mm Indicator By Comparison
Method
23. Height Gauge$ Up to 1000 mm (1+4x) µm “x” in m Using Caliper Checker /
(Vernier /Dial/ Digital) Gauge Blocks / Length
L.C.: 0.001mm Bars Comparison
Method
24. External Micrometer$ Up to 100 mm 1.5 µm Using Grade “1” Gauge
L.C.: 0.001mm >100 mm to 250 mm 7.0 µm Blocks & Optical Flat By
> 250 mm to 500 mm 9.0 µm Comparison Method
25. Internal Micrometer$ 5 mm to 100 mm 7.0 µm Using Master Ring
L.C.: 0.01 mm 100 mm to 250 mm 9.0 µm Gauges by Comparison
Method
26. Depth Micrometer$ Up to 150 mm 7.0 µm Using Depth Micro
LC.: 0.001 mm > 150 mm to 250 mm 8.0 µm Checker & Gauge
Blocks By Comparison
Method
27. Micrometer Head$ Up to 25 mm 1.0 µm Using Electronic
L.C.: 0.0002 mm Comparator By
Comparison Method
28. Height Micrometer$ Up to 300 mm 3.0 µm Using Gauge Blocks &
0.0005 mm Lever type Indicator by
Comparison Method
29. Dial Calibration Using Electronic
Tester$ Comparator By
L.C.: 0.0001 mm Up to 25 mm 1.0 µm Comparison method
Sangeeta Kunwar Avijit Das
Convenor Program Director
Laboratory Accurate Engineering Co. Pvt. Ltd., 3/842, Avadi Poonamallee Road,
Senneerkuppam, Poonamallee, Chennai, Tamil Nadu
Accreditation Standard ISO/IEC 17025: 2005
Certificate Number CC-2706 Page 5 of 8
Validity 28.05.2018 to 27.05.2020 Last Amended on -
Sl. Quantity Measured / Range/Frequency *Calibration Measurement Remarks
Instrument Capability (±)
30. Dial Gauge Plunger Up to 25 mm 1.2 µm Using Electronic Dial
Type$ Up to 50 mm 2.7 µm Calibration Tester
L.C.: 0.001 mm By Comparison Method
31. Dial Gauge Lever Up to 2 mm 1.0 µm Using Electronic
Type$ Calibration Tester
L.C.: 0.001mm By Comparison Method
32. Bore Gauge$ Up to 2 mm 2.7 µm Using Electronic
(For Transmission) (Ø 20 mm to 400 mm) Calibration Tester
L.C.: 0.001 mm By Comparison Method
33. Dial Snap Gauge / Up to 200 mm 4.23 µm Using Gauge Blocks
Dial Thickness By Comparison Method
Gauge/Pistol
Caliper $
0.001 mm
34. Comparator Stand$ Up to 300 mm 1.53 µm Using Gauge Blocks &
Lever type Indicator By
Comparison based on
IS: 14271
35. Electronic Probe$ Up to 300 mm 1.0 µm Using Gauge Blocks by
Resolution: 0.1µm Comparison method
36. Straight Edge$ Up to 600 mm 8.0 µm Using CMM by
Comparison method
37. Three Point Bore Using Master Ring
Gauge$ Gauges by Comparison
L.C.: 0.001 mm Ø 6 mm Up to 100 mm 4.7 µm method
38. Sine Bar/Sine Centre$ Up to 300 mm & 6ʺ Arc Using 3D Co-ordinate
Up to 60º 4.0 µm Measuring Machine By
Center distance between In-Direct Method
Roller
Sangeeta Kunwar Avijit Das
Convenor Program Director
Laboratory Accurate Engineering Co. Pvt. Ltd., 3/842, Avadi Poonamallee Road,
Senneerkuppam, Poonamallee, Chennai, Tamil Nadu
Accreditation Standard ISO/IEC 17025: 2005
Certificate Number CC-2706 Page 6 of 8
Validity 28.05.2018 to 27.05.2020 Last Amended on -
Sl. Quantity Measured / Range/Frequency *Calibration Measurement Remarks
Instrument Capability (±)
39. Angle Plate$ Upto 300 mm & 6.7 µm Using 3D Co-ordinate
Upto 90º Measuring Machine By
In-direct Method
40. Spirit Level$ ± 0.1 mm/m 0.01 mm/m Using Electronic Level
Sensitivity: By Comparison method
0.01mm/m
41. Bevel Protector / 0 to 360º 5ʹ Arc Using 3D Co-ordinate
Combination Set$ Measuring Machine By
L.C.: 5 Arc Mins In-direct Method
42. Pitch Micrometer For 0 to 25 mm 1.6 µm Using Gauge Blocks and
Anvil$ Angle 7’ 48” Video measuring
L.C.: 0.001 mm Machine By Comparison
Method
43. Thread Pitch Gauge$ Flank Angle – 55º, 60º 7’ 48” Using Video Measuring
(Angle) Machine By Direct
Pitch 0.3 mm to 6.0 mm 10 µm Method
44. Coating Thickness Up to 2 mm 4.5 µm Using Master foils by
Gauge$ Comparison Method
L.C.: 0.001 mm
45. Lobbing Micrometer / Up to 25 mm 1.5 µm Using Cylindrical Setting
V – Anvil Micrometer$ Masters By Comparison
L.C.: 0.001 mm Method
46. Spline Gauges$ Up to 100 mm 2.0 µm Using Gauge Blocks
(Internal) By Comparison Method
47. Spline Gauges$ Up to 100 mm 2.5 µm Using FCDM / ULM
(External) By Comparison Method
Sangeeta Kunwar Avijit Das
Convenor Program Director
Laboratory Accurate Engineering Co. Pvt. Ltd., 3/842, Avadi Poonamallee Road,
Senneerkuppam, Poonamallee, Chennai, Tamil Nadu
Accreditation Standard ISO/IEC 17025: 2005
Certificate Number CC-2706 Page 7 of 8
Validity 28.05.2018 to 27.05.2020 Last Amended on -
Sl. Quantity Measured / Range/Frequency *Calibration Measurement Remarks
Instrument Capability (±)
48. Test Mandrel$ Up to 150 mm Using Electronic
Diameter 1.2 µm Comparator Probe By
Run Out 5.0 µm Comparison Method
49. Surface Plate♣ 2500 mm x 1600 mm W +L Using Electronic Level
01.36 √ 100
m
W=Width, L=Length
In-direct Method
50. Electronic Height Up to 600 mm 4.0 µm Using Step Gauge /
Gauge ♣ Up to 1000 mm 7.0 µm Check Master / Gauge
L.C.: 0.0001 mm Blocks By Comparison
Method
51. Metallurgical 100 x to 1000 x 0.4% Using Glass Scale By
Microscope♣ Comparison Method
II. DIMENSION (PRECISION INSTRUMENTS)
1. Caliper Checker / Up to 300 mm 7.2 µm Using Co-ordinate
Depth Micro – Above 300 mm to 8.0 µm Measuring Machine
Checker / Internal 600 mm (CMM) by Comparison
Micro Checker$ Method
2. Floating Carriage Up to 175 mm 2.0 µm Using Cylinder Setting
Dia. Measuring Master & Electronic
Machine$ Probe By Comparison
L.C.: 0.0001µm Method
3. Length Bars$ Up to 500 mm 3.8 µm Using ULM By
Comparison Method
4. Reference Sphere Dia 50 mm 1.5 µm Using ULM By
Dia Measurement$ Comparison Method
Sangeeta Kunwar Avijit Das
Convenor Program Director
Laboratory Accurate Engineering Co. Pvt. Ltd., 3/842, Avadi Poonamallee Road,
Senneerkuppam, Poonamallee, Chennai, Tamil Nadu
Accreditation Standard ISO/IEC 17025: 2005
Certificate Number CC-2706 Page 8 of 8
Validity 28.05.2018 to 27.05.2020 Last Amended on -
Sl. Quantity Measured / Range/Frequency *Calibration Measurement Remarks
Instrument Capability (±)
5. Profile Projector Up to 100 mm 2.0 µm Using Linear Glass
Linear♣ Scale, Angular Glass
L.C.: 0.1 µm Above 100 mm 7.0 µm Protractor By
Up to 200 mm Comparison Method
Angular 0 to 360º 2ʺ Arc
L.C.: 1ʺ Arc
Magnification 10 x to 100 x 0.8 %
6. 3-D Coordinate 1000 mm x1000 mm x (2.3+2L) µm Using Check Master &
Measuring Machine♣ 1000 mm L in m Length Bars by
L.C.: 0.1 µm Comparison Method
7. Length Measuring Up to 300 mm 0.5 µm Up to100 mm Using “K” Grade Gauge
Machine ♣ 3.0 µm Above100 mm Blocks & Length Bar By
L.C.: 0.0001 mm Up to 300 mm Comparison Method
* Measurement Capability is expressed as an uncertainty () at a confidence probability of 95%
$
Only in Permanent Laboratory
♣
Only for Site Calibration
Sangeeta Kunwar Avijit Das
Convenor Program Director
