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DIN EN ISO 5167-1:2004-01

Действует
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2003); German version EN ISO 5167-1:2003 — 41 стр.
ICS
17.120.10 Flow in closed conduits / Поток в закрытых каналах