RO
SR EN ISO 8503-3:2003
Preparation of steel substrates before application of paints and related products - Surface roughness characteristics of blast-cleaned steel substrates - Part 3: Method for the calibration of ISO surface profile comparators and for the determination of surface profile - Focusing microscope procedure (ISO 8503-3:1988)
Based on observation of the test surface over a specified field of view, focussing the highest peaks and lowest valleys by movement of the objective. Determination of the distance (peak-to-valley height) between the highest peak and lowest valley by movement of the objective in order to focus on the lowest valley within the same field of view. Repetition of the procedure to obtain values for a further 19 different fields of view, calculation of the arithmetic mean. The focussing microscope is also specified. The procedure is also applicable to the determination of the surface profile of essentially planar blast-cleaned steel.
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Status :
Withdrawn
Approval date : 1/27/2003
Publish date : 1/28/2003
Withdrawal date : 7/31/2012
Number of pages : 16
ICS : 25.220.10 Surface preparation,87.020 Paint coating processes
Technical Committee : 338 - Adhesives
- Normative reference SR EN ISO 8503-1:2003
- Replaced by SR EN ISO 8503-3:2012
- A99 SR ISO 8503-3:1995/A99:2003