Width
Thickness
Sectional weight
Length up to 50 mm: ± 1 mm
50 mm to 75 mm: ± 1.5 mm
75 mm to 100 mm: ± 2 mm
100 mm and above ± 2%
and maximum not exceding 6 mm
up to 12 mm: ± 0.5 mm
over 12 mm: 4% and max not exceeding 1.5 mm
Up to 3 mm thick: +5/-3%
Over 3 mm : ± 5%
For fixed length : ± 100 mm