ISO 4377:2012 PDF
Hydrometric determinations — Flow measurement in open channels using structures — Flat-V weirs
Hydrometric determinations — Flow measurement in open channels using structures — Flat-V weirs
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 59
- Дата публикации:
- 23 июля 2012 г.
- Издание:
- ISO IS 4377 edition 4 version 1
- ICS:
- 17.120.20
ISO 4377:2012 describes the methods of measurement of flow in rivers and artificial channels under steady or slowly varying conditions using flat-V weirs
Abstract
Overview
ISO 4377:2012 - Hydrometric determinations: Flow measurement in open channels using structures - Flat‑V weirs specifies accepted methods for measuring flow in rivers and artificial channels under steady or slowly varying conditions using . The standard describes weir geometry, site selection, installation, measurement of heads, discharge relationships (modular and drowned flow), computation procedures, uncertainty analysis and maintenance. Annexes provide guidance on acceptable velocity distribution, measurement uncertainty and equipment performance.
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