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Hydrometry. Rotating-element current-meters.

Geometrical product specifications (GPS). Characteristics and conditions. Definitions.

Hydrometric uncertainty guidance (HUG).

Geometrical product specifications (GPS) — Characteristics and conditions — Definitions

Overview ISO 25378:2011 - Geometrical product specifications (GPS) - Characteristics and conditions - Definitions - provides a consistent, mathematically based vocabulary and conceptual framework for…

Hydrometry — Rotating-element current-meters

Overview ISO 2537:2007 - Hydrometry: Rotating‑element current‑meters specifies operational requirements, construction, calibration (rating), and maintenance for rotating‑element devices used to measu…

Hydrometric uncertainty guidance (HUG)

Overview - ISO 25377:2020 (Hydrometric Uncertainty Guidance, HUG) ISO 25377:2020, titled Hydrometric uncertainty guidance (HUG), is an ISO standard that explains the nature and treatment of measureme…