Many free versions online are poor-quality scans from the 1990s. They suffer from:
However, a cautionary note on "Best PDFs": Many free PDFs available online are outdated versions (e.g., the 1997 version). The "best" PDF is always the current, licensed version from BSI or a reputable reseller, ensuring legal compliance and access to the latest technical amendments. bs en 970 visual inspectionpdf best