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【英文标准名称】:NSF/ANSI245wastewatertreatmentsystems-nitrogenreduction
【原文标准名称】:NSF/ANSI245.污水处理系统.氮还原
【标准号】:ANSI/NSF245(i4)-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:化学;氮;物理学;协议;还原;污水处理
【英文主题词】:Chemistry;Nitrogen;Physics;Protocols;Reduction;Sewagetreatment
【摘要】:
【中国标准分类号】:Q81
【国际标准分类号】:07_030
【页数】:
【正文语种】:英语


MIL-HDBK-419A, MILITARY HANDBOOK GROUNDING, BONDING, AND SHIELDING FOR ELECTRONIC EQUIPMENTS AND FACILITIES (VOL I OF 2 VOLUMES) BASIC THEORY (28 DEC 87). This handbook emphasizes the necessity for including considerations of grounding, bonding, and shielding in all phases of design, construction, operation, and maintenance of electronic equipment and facilities. Volume I, Basic Theory, develops the principles of personnel protection, fault protection, lightning protection, interference reduction, and EMP protection for C-E facilities. In addition, the basic theories of earth connections, signal grounding, electromagnetic shielding, and electrical bonding are presented. The subjects are not covered independently, rather they are considered from the standpoint of how they influence the design of the earth electrode subsystem of a facility, the selection of ground reference networks for equipments and structures, shielding requirements, facility and equipment bonding practices, etc. Volume I also provides the basic background of theory and principles that explain the technical basis for the recommended practices and procedures; illustrates the necessity for care and thoroughness in implementation of grounding, bonding, and shielding, and provides supplemental information to assist in the solution of those problems and situations not specifically addressed. In Volume II, Applications, the principles and theories, including RED/BLACK protection, are reduced to the practical steps and procedures which are to be followed in structural and facility development, electronic engineering, and in equipment development. These applications should assure personnel, equipment and structural safety, minimize electromagnetic interference (EMI) problems in the final operating system; and minimize susceptibility to and generation of undesirable emanations. The emphasis in Volume11 goes beyond development to assembly and construction, to installation and checkout, and to maintenance for long term use.