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Table of Tolerances according to DIN 876 for Surface Plates

 

The levelness tolerance indicates the max deviation between the highest and lowest point on the surface (temperature + 20°C)

Measuring surface length
[mm]
Levelness tolerance (flatness) in ?m for different degrees of precision:
000123
100 2 4 11 22 44
160 2 5 12 23 46
250 3 5 13 25 50
400 3 6 14 28 56
630 3 7 16 33 65
1000 4 8 20 40 80
1600 5 10 26 52 104
2000 6 12 30 60 120
2500 7 14 35 70 -

Table of Tolerances according to DIN 874 for Rules

 

The levelness tolerance indicates the max deviation between the lowest and highest point (temperature of + 20°C).
Levelness tolerance (flatness) in ?m for different degrees of precision.

Engineer?s rulesStraight-edges
Length in mm
? 2
00012Length in mm
? 2
00
500 4 7 12 21 75 2
750 6 9,5 17 27 100 2
1000 8 12 21 33 150 3
1500 - 17 29 46 300 3
2000 - 22 37 58    
2500 - 27 46 71    
3000 - 32 54 83    
4000 - 42 71 108    
5000 - - 87 133    

Table of Tolerances according to DIN 863 for Micrometers

Masuring capacity
[mm]
Permitted total error
[?m]
Parallelism tolerance for measuring surfaces
with measuring pressure 10 N [?m]
0 - 25 4 2
25 - 50 4 2
50 - 75 5 3
75 - 100 5 3
100 - 125 6 3
125 - 150 6 3
150 - 175 7 4
175 - 200 7 4
200 - 225 8 4
225 - 250 8 4
250 - 275 9 5
275 - 300 9 5

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