前言:这是CSA C504《工业和商业泵送系统能量性能测量和监测》的第一版。CSA集团承认，BC Hydro、加拿大电力协会（CEA）、魁北克Hydro、独立电力系统运营商、马尼托巴Hydro和加拿大自然资源部（NRCan）的财政支持部分促成了本标准的制定。本标准的制定符合加拿大标准委员会对加拿大国家标准的要求。CSA集团已将其作为加拿大国家标准发布。范围:1.1包括本标准适用于工业或商业清洁设备- 水泵系统具有以下特点:a）电动单级和多级旋转动力泵的任何应用；b） 流量范围在20 m³/h至36 000 m³/h之间的泵送系统；andc）粘度高达25 cSt的所有液体，前提是使用ANSI/HI 9.6.7将性能校正为1 cSt。1.2排除本标准不适用于以下泵送系统:a）容积式泵的应用，容积式泵定义为一类泵，其中一定体积的液体被困在一个腔室中，并通过固体部件（如活塞、柱塞、齿轮齿、叶片）置换液体，从泵的吸入侧输送到泵的排出侧，螺丝、隔膜等。 ; 和b）处理剪切敏感液体的泵送系统应用。1.3本标准中的术语“应”用于表示要求，即用户为遵守本标准而有义务满足的规定；“应该”用于表示建议或建议但不需要的建议；“可”用于表示一个选项或在标准范围内允许的选项。注释随附条款不包括要求或替代要求；随附条款的注释的目的是将解释性或信息性材料与文本分开。表和图的注释被视为表或图的一部分，可以作为要求编写。 附件被指定为规范性（强制性）或信息性（非强制性）以定义其应用。

Preface:This is the first edition of CSA C504,Measuring and monitoring industrial and commercial pumping system energy performance.CSA Group acknowledges that the development of this Standard was made possible in part by the financial support of BC Hydro, the Canadian Electricity Association (CEA), Hydro Québec, Independent Electricity System Operator, Manitoba Hydro, and Natural Resources Canada (NRCan).This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.Scope:1.1 InclusionsThis Standard is intended to be used with an industrial or commercial clean-water pumping system with the following characteristics:a) any application of electrically driven single- and multi-stage rotodynamic pumps;b) pumping system with a flow range between 20 m³/h to 36 000 m³/h; andc) all liquids with viscosity up to 25 cSt, provided that ANSI/HI 9.6.7 is used to correct the performance to 1 cSt.1.2 ExclusionsThis Standard is not intended to be used with the following pumping systems:a) application of positive displacement pumps, defined as a category of pumps where a set volume of liquid is trapped in a chamber and conveyed from the suction side of the pump to the discharge side of the pump through displacement of liquid by a solid component such as a piston, plunger, gear tooth, vane, screw, diaphragm, etc.; andb) pumping system applications handling shear-sensitive liquids.1.3 TerminologyIn this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative non-mandatory) to define their application.