GSO ISO 8503-4:2015

ISO 8503-4:2012

Gulf Standard Current Edition · Approved on 03 September 2015

Preparation of steel substrates before application of paints and related products -- Surface roughness characteristics of blast-cleaned steel substrates -- Part 4: Method for the calibration of ISO surface profile comparators and for the determination of surface profile -- Stylus instrument procedure

GSO ISO 8503-4:2015 Files

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GSO ISO 8503-4:2015 Scope

This part of ISO 8503 specifies the stylus instrument and describes the procedure for calibrating ISO surface profile comparators conforming to the requirements of ISO 8503-1. This part of ISO 8503 is also applicable to the determination of the surface profile, within the range Ry5 = 20 μm to Ry5 = 200 μm, of essentially planar blast-cleaned steel. The determination can be carried out on a representative section of the blast-cleaned surface or, if direct observation of the surface is not feasible, on a replica of the surface (see Annex C). NOTE Where appropriate, this procedure can be used to assess the roughness profile of other abrasive blast-cleaned substrates. An alternative procedure is described in ISO 8503-3.