共找到 150 條與 coefficient of discharge 相關的標準，共 10 頁
This International Standard specifies a method of steady-flow measurement in open channels using a trapezoidal broad-crested weir under modular
Hydrometric determinations — Flow measurement in open channels using structures — Trapezoidal broad-crested weirs
This publication applies to the generation of electromagnetic energy from sound and television receivers for the reception of broadcast and similar
Amendement 1 Limites et méthodes de mesure des caractéristiques de perturbation radioélectrique des récepteurs de radiodiffusion et de télévision et équipements associés (Edition 2.0)
This test method is particularly useful to determine the discharge when it cannot be measured directly by some type of current meter to obtain
Standard Test Method for Open Channel Flow Measurement of Water Indirectly by Using Width Contractions
本文件規定了在光滑、基本水平的渠道（或緩坡渠道）中，通過底部突然中斷的水力結構（帶有垂直落差并自由排放）來估算清水亞臨界流量的方法。這種溢流形成控制斷面，并提供了一種利用末端深度測量方法來估算流量的手段。已經研究了多種具有溢流的渠道橫截面，但僅考慮了那些經過充分研究和測試后獲得普遍認可、因此不需要
Measurement of water flow in open channels, Part 4.10: Measurement using flow gauging structures — End-depth method for estimation of flow in channels with a free overfall (ISO 18481:2017, IDT)
本指南描述了差壓流量測量用節流元件（特殊應用），這些元件的設計和安裝不符合DIN 1952的所有規定。特殊情況中的變化將會被詳細說明。在符合標準的情況下，將引用DIN 1952及其補充指南VDI/VDE 2040。關于此類特殊類型的測試結果數量較少，這會導致與標準相比更高的不確定度要求
Orifices and Nozzles for special applications in flow measurement with differential pressure devices
This publication applies to the generation of electromagnetic energy from sound and television receivers for the reception of broadcast and similar
Amendement 2 Limites et méthodes de mesure des caractéristiques de perturbation radioélectrique des récepteurs de radiodiffusion et de télévision et équipements associés (Edition 2.0)
Sicherung von Anlagen der Verfahrenstechnik; Klassifizierung von Sicherungseinrichtungen
The guideline describes orifices and nozzles for special applications whereby the design of the primary device and its installation does not conform
Flow measurement with throttle devices; orifices and nozzles for special applications
VDI 3480 Blatt 1-1984 Gaseous emission measurement; measurement of hydrogen chloride; measurement of
Messen gasfoermiger Emissionen; Messen von Chlorwasserstoff; Messen der Chlorwasserstoff-Konzentration von Abgas mit geringem Gehalt an chloridhaltigen Partikeln
5.1 This test method is particularly useful to determine
Standard Test Method for Open Channel Flow Measurement of Water Indirectly by Using Width Contractions
GB／T 2624的本部分規定了文丘里管的幾何尺寸和安裝在管道中測量滿管流體流量的使用方法(安裝和工作條件)。 GB／T 2624的本部分亦提供了用于計算流量并可配合GB／T 2624.1規定要求一起使用的相關資料。 GB／T 2624的本部分只適用于在整個測量段內流體保持亞音速
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes
This Technical Report gives recommendations and guidance on functional and calculation methods for smoke and heat exhaust ventilation systems
Smoke and heat control systems - Part 5: Guidelines on functional recommendations and calculation methods for smoke and heat exhaust ventilation systems
This International Standard specifies requirements for the integration of fishpasses with flow measurement structures. It identifies those fishpasses
Hydrometry - Fishpasses at flow measurement structures
This standard applies to the emission (radiated and conducted) of radiofrequency disturbances from:- all lighting equipment with a primary function
Amendement 1 Limites et méthodes de mesure des perturbations radioélectriques produites par les appareils électriques d'éclairage et les appareils analogues (Edition 7.0; Amendment 1: 10/2006)
Specifies the requirements for the use of the given appliances for the measurement of flow of clear water in open channels under free flow conditions.
Liquid flow measurement in open channels by weirs and flumes; rectangular broad-crested weirs
