Mitutoyo SJ-301 - Evaluation According to DIN

14 - 3 No. 99MBB091A
14. REFERENCE INFORMATION
14.1.3 Evaluation according to DIN
Shown below are the standard cutoff length, sampling length, and evaluation length for
evaluation according to DIN.
■ Standard cutoff length, sampling length, and evaluation length for Ra, Rz, and Ry (DIN) from periodic
roughness profile
mSfoegnaR
)mm(
(htgnelffotuC  )c
)mm(
(htgnelgnilpmaS ᐉe)
)mm(
(htgnelnoitaulavE ᐉ )n
)mm(
10.0mS<  40.080.080.04.0
40.0m
S<  31.052.052.052.1
31.0mS<  4.08.08.04
4.0mS<  3.15.25.25.21
3.1mS<  48804
■ Standard cutoff length and evaluation length for Ra from non-periodic roughness profile
aRfoegnaR
( )m
(htgnelffotuC  )c
)mm(
(htgnelnoitaulavE ᐉ )n
)mm(
aR  20.080.04.0
20.0aR<  1.052.052.1
1.0aR<  28.04
2aR<  015.
25.21
01R<a 8 04
■ Standard cutoff length, sampling length and evaluation length for Rz (DIN) from non-periodic roughness
profile
zRfoegnaR
( )m
(htgnelffotuC  )c
)mm(
(htgnelgnilpmaS ᐉe)
)mm(
(htgnelnoitaulavE ᐉ )n
)mm(
zR  1.080.080.04.0
1.0zR<  5.05
2.052.052.1
5.0zR<  018.08.04
01zR<  055.25.25.21
05zR< 8804