WELDED GRATING SP SIZE TOLERANCES

Extracts from RAL GZ 638

	Ultimate projection of a bond bar k max. = 0.5 mm.(also for Р grating)
	Vertical deviation of bearing bars р max. = 0.1 х Н, but no more than 3 mm.
	Maximum projection of bond bars over bearing bars q max. = 1.5 mm.
	Maximum  projection of a framing bar s max. = 1.0 mm.
	Maximum retraction of a framing bar r max. = 1.0 mm.
	Diagonal cut of bearing bars in relation to bond bars t max. = ±0.1xH, but no more than 3 mm.
	Ultimate deviations of a bearing bar - convexity xt max. = 1/150 from bar length; If sizes are > 450 mm; no more than 8 mm; If sizes are < 450 mm; no more than 3 mm.
	Ultimate deviations of a bearing bar - concavity ot max. = 1/200 from a bar length; If sizes are > 600 mm; no more than 8 mm; If sizes are < 600 mm; no more than 3 mm.
	Ultimate deviations of bond bars - convexity xq max. = 1/150 from bar length; If sizes are > 450 mm; no more than 8 mm; If sizes are < 450 mm; no more than 3 mm.
	Ultimate deviations of a bond bar - concavity oq max. = 1/200 from a bar length; If sizes are > 600 mm; no more than 8 mm; If sizes are < 600 mm; no more than 3 mm.