How To Use The SESS Straightedge & Gauge
The SESS Straightedge & Gauge are used for measuring simple damage to racking frame uprights and bracings, in order to classify the degree of risk in accordance with the limits given in the “Steel static storage systems – Application and maintenance of storage equipment BS EN 15635:2008″.
The STRAIGHTEDGE is a flat shatterproof plastic strip 1.0 metre long, rigid along the thin beveled edge, but flexible in the other direction.
The GAUGE has 3 sections 3mm diameter rod 10mm diameter rod 5mm diameter rod
The thin beveled edge is placed in contact with a flat surface on the concave side of the damaged upright or bracing such that the damaged area lies central, as near as possible, to the length of the straight edge.
The amount of damage can be checked using the Gauge with the appropriate section.
For an upright bent in the direction of the rack beam spans, the maximum gap between the upright and the Straightedge should not exceed 5mm.
For an upright bent in the plane of the frame bracing, the maximum gap between the upright and the Straightedge should not exceed 3mm.
For an upright which has been damaged such that there is a simultaneous bend in both longitudinal and lateral directions, the left-to-right and the front-to-back deformation shall be measured and treated separately and the appropriate 5mm and 3mm limits observed.
For bracing members bent in either plane, the gap between the Straightedge and the bracing member should not exceed 10mm, or pro rata for bracings shorter than 1m.