DNØ esternoStdXSXXSsch.10sch.20sch.30sch.40sch.60sch.80sch.100sch.120sch.140sch.160
1/8"10.291.732.41----1.73-2.41----
1/4"13.722.233.02----2.23-3.02----
3/8"17.142.313.20----2.31-3.20----
1/2"21.342.773.737.47---2.77-3.73---4.75
3/4"26.672.873.917.82---2.87-3.91---5.54
1"33.403.384.559.09---3.38-4.55---6.35
1"1/442.163.564.859.70---3.56-4.85---6.35
1"1/248.263.685.0810.16---3.68-5.08---7.14
2"60.323.915.5411.07---3.91-5.54---8.71
2"1/273.025.167.0114.02---5.16-7.01---9.52
3"88.905.497.6215.24---5.49-7.62---11.12
3"1/2101.605.748.08----5.74-8.07----
4"114.306.028.5617.12---6.02-8.56-11.12-13.49
5"141.306.559.5219.05---6.55-9.52-12.70-15.87
6"168.277.1111.9721.94---7.11-11.97-14.27-18.24
8"219.078.1812.7022.22-6.357.048.1810.3112.7015.0618.2420.6223.01
10"273.059.2712.70--6.357.809.2712.7015.0618.2421.4125.4028.57
12"323.859.5212.70--6.358.3810.3114.2717.4521.4125.4028.5733.32
14"355.609.5212.70-6.357.929.5211.1215.0619.0523.8027.7631.7535.71
16"406.409.5212.70-6.357.929.5212.7016.6621.4126.1930.9436.5240.46
18"457.209.5212.70-6.357.9211.1214.2719.0523.8029.3634.9239.6745.24
20"508.009.5212.70-6.359.5212.7015.0620.6226.1932.5438.1044.4549.99
24"609.609.5212.70-6.359.5214.2717.4524.5930.9438.8946.0252.3759.51
30"762.00---7.9212.7015.87-------

Tutte le misure, a parte il diametro nominale, sono espresse in mm.