Mitutoyo SJ-301 - Evaluation According to JIS B0601-2001 and ISO

No. 99MBB091A 14 - 4
14.1.4 Evaluation according to JIS B0601-2001 and ISO
Shown below are the standard sampling length and evaluation length for evaluation according
to JIS B0601-2001 and ISO.
■ Standard sampling length and evaluation length for the measurement of R-parameters of periodic
profiles, and RSm of periodic or non-periodic profiles
mSRfoegnaR
)mm(
(htgnelgnilpmaS ᐉ)
)mm(
(htgnelnoitaulavE ᐉ )n
)mm(
310.0mSR<  40.080.04.0
40.0mSR<  31.052.052.1
31.0mSR
<  4.08.04
4.0mSR<  3.15.25.21
3.1mSR<  48 04
■ Standard sampling length and evaluation length for the measurement of Ra and Rq from non-periodic
roughness profiles
aRfoegnaR
( )m
(htgnelgnilpmaS ᐉ)
)mm(
(htgnelnoitaulavE ᐉ )n
)mm(
)600.0(aR<  20.080.04.0
20.0aR<  1.052.052.1
1.0aR<  28.
04
2aR<  015.25.21
01aR<  088 04
■ Standard sampling length and evaluation length for measurement of Rz, Rp, and Rt from non-periodic
roughness profiles
zRfoegnaR
( )m
(htgnelgnilpmaS ᐉ)
)mm(
(htgnelnoitaulavE ᐉ )n
)mm(
)520.0(zR<  01.080.04.0
01.0zR<  5.052.052.1
5.0zR<  018
.04
01zR<  055.25.21
05zR<  0028 04