ISO 1998-4:1998

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Petroleum industry — Terminology — Part 4: Refining

"ISO 1998-4:1998" refers to an International Standard published by the International Organization for Standardization (ISO), specifically focused on "Petroleum industry - Terminology - Part 4: Refining"; meaning it defines standardized terms and definitions used within the petroleum refining sector, as part of a larger set of terminology standards under the ISO 1998 series.