Metrology Lab

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Test Names Parameters Standard Range/ Specification Country of origin Accuracy Resolutions Required Time (hrs)
Surface Roughness Test Roughness (Ra,Rt,Rz) ISO 3274:1996,
ISO 4287:1997,
ISO 4288-1996,
ISO 11562,
ISO 4287/1-1984
Range 1 = 1 mm (0.04 in)
Range 2 = 0.2 mm (0.008 in)
Range 3 = 0.04 mm (0.002 in)
England 0.15 µm Range 1 = 4 nm (0.16 µin)
Range 2 = 0.8 nm (0.031 µin)
Range 3 = 0.16 nm (0.006 µin)
0.5
Waviness parameter(Wa,Wt)
Core Roughness (Rk)
Contour Test GD&T (small Dimension) ISO 3274:1996,
ISO 4287:1997,
ISO 4288-1996,
ISO 11562,
ISO 4287/1-1984
Range = 28 mm England 0.15 µm 125 nm 1
Roundness Test Roundness(Ront) ISO 12180:2003, ISO12181:2003, ISO 12780:2003, ISO 12781:2003 0-300mm in Z axis, 350mm dia England 0.025µm 0.3µm 0.5
Cylindricity(Cylt)
Straightness (Str)
GD&T Parameter & All Dimension Test (CMM) All GD&T parameter ISO 4291,
ISO 12181
700×700×600 (mm) Germany 1.8+L/300 0.2µm 0.5
Gauge/Master calibration test (ULM) Universal Length measurement NA 0 to 305 mm Mahr,Germany (0.09+L/2000) 0.05µm 0.5
Linear Height Measurement Height,Distance ISO 12781:2003 0 – 972 mm Mitutoyo, Japan (1,1 + 0,6L/600) µm
L = length (mm)
0.0001/0.001/0.01/0.1 mm 0.5

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