It is part of the Russian system of standards for geophysical well logging in petroleum exploration.
Detailed tables (Tables 2–54) defining bevel angles, gap sizes, and joint designations (e.g., C15, U8, T1). gost 526480 english pdf better
: Provides tables for seam width, convexity/concavity, and permissible deviations based on material thickness. It is part of the Russian system of
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First, a quick clarification: The correct designation is (sometimes typed as 526480 due to a missing hyphen or OCR error).
If you’ve landed here searching for you’ve probably already hit the usual roadblocks. Maybe you downloaded a scanned Russian copy that looks like a 90s relic. Perhaps you found an English version, but the text is garbled, the tables are misaligned, or the critical sections are missing.
