Serial Number

Project

Specifications

Test method

Geometry

1

Geometry

Pseudo Square 

2

Side Size Square

166mm±0.25mm
158.75mm±0.25mm
156.75mm±0.25mm

Digital vernier caliper

3

Diagonal

223mm±0.25mm
212mm±0.25mm
210mm±0.25mm

Digital vernier caliper

5

Bevel edge width
range

Same surface ≤ 0.3mm
Out of plane ≤ 0.6mm

Digital vernier caliper

6

Right Angle

90±0.2º

Protractors

7

Orientation of pseudo square sides

﹤010﹥±3º，﹤001﹥±3º

X-ray Diffraction Method

Surface Roughness

Roughness

Side Ra ≤ 0.3um

Chamfering Ra ≤ 1um

Mitutoyo SJ-210

Roughness tester

8

End face perpendicularity

≤1mm

Square/Feeler gage