If you are a student, check if your university has a subscription to BSOL (British Standards Online) . If you are a professional, buy BS EN ISO 17637:2016 – it is the direct evolution of EN 970 and the true "best paper."
: To perform a direct inspection, the inspector must place their eye within 600 mm of the surface and at an angle of no less than 30 degrees . bs en 970 visual inspectionpdf best
If you are a student, check if your university has a subscription to BSOL (British Standards Online) . If you are a professional, buy BS EN ISO 17637:2016 – it is the direct evolution of EN 970 and the true "best paper."
: To perform a direct inspection, the inspector must place their eye within 600 mm of the surface and at an angle of no less than 30 degrees .