These allow you to confirm the withdraw resistance of fixing anchors on substrates such as masonry (brickwork, concrete blockwork, stonework or in-situ concrete) in either new or existing construction.  They facilitate compliance with Occupational Safety and Health Administration (OSHA) standards among other codes and standards, quality control and are an integral part of construction health and safety ‘good practice.’ They can help you secure and protect your construction workspace, including its access and egress points, against the primary construction hazard: fall from height due to insecure fixings of scaffolding guard rails, lanyards, lifelines.