1. Nominal Pipe Size
up to 4" = +/- 0.79 mm
5" - 8" = + 1.58mm / - 0.79mm
10" - 18" = + 2.37mm / - 0.79mm
20" - 24" = + 3.18mm / - 0.79mm
2. Wall Thickness
All Diameters = - 12.5%
+ tolerance not specified
3. Weight
Weight = + 10% / - 1.5%
