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DIN EN ISO 5167-3:2021-12

Действует
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 3: Nozzles and Venturi nozzles (ISO 5167-3:2020); German version EN ISO 5167-3:2020 — 54 стр.
ICS
17.120.10 Flow in closed conduits / Поток в закрытых каналах