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UL Standard for Safety Portable/Personal Electronic Products Suitable for Use in Class I@ Division 2@ Class I@ Zone 2@ Class II@ Division 2@ Class III@ Division 1@ Class III@ Division 2@ Zone 21 and Zone 22 Hazardous (Classified) Locations (COMMENTS DUE:
BUILT-IN FIRE EXTINGUISHING/SUPPRESSION SYSTEMS IN CLASS C AND CLASS F CARGO COMPARTMENTS
Full Description Preface: This is the common CSA and UL standard for low voltage transformers. It is the first edition of CSA C22.2 No. 66.3 and the first edition of UL 5085-3. This edition of CSA C22.2 No. 66.3 supersedes the requirements of CSA C22.2 No. 66 published in 1988. This edition of UL 5085-3 supersedes the Fourth edition of UL 1585 published in 1998. Scope: 1.1 As noted in Low Voltage Transformers - Part 1: General Requirements, UL 5085-1, or CSA C22.2 No. 66.1, Low Voltage Transformers - Part 1: General Requirements, the requirements in Part 3 cover Class 2 transformers for use with Class 2 circuits in accordance with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, Part I, CSA C22.1. They are intended for connection to essentially sinusoidal supply sources. Advisory Note: For transformers intended for use in the United States, these requirements also cover Class 3 transformers for use with Class 3 circuits in accordance with the National Electrical Code, ANSI/NFPA 70, unless otherwise specified in this standard. See Annex D for Class 3 requirements. 1.3 In addition to the items specified in Clause 1.3 of Part 1, the requirements of Part 3 do not cover: a) Power supplies (a transformer provided with a rectifier is considered a power supply); b) Toy transformers; c) Cord and plug connected transformers; d) Direct plug-in transformers; e) Transformers intended for use in audio, radio, or television type appliances; or f) Other special types of transformers covered in requirements for other electrical devices or appliances. Advisory Note: The requirements of Part 3 do not cover transformers intended for use in the United States having a nominal primary rating of more than 600 V and transformers having overvoltage taps rated over 660 V. 1.7 This part is intended to be used in conjunction with Part 1. The numbering of the clauses in Part 3 corresponds to the numbered clauses in Part 1. The requirements in Part 1 apply unless modified by Part 3. 1.8 A Class 2 transformer that includes a separate current-limiting impedance such as a resistor or a positive temperature coefficient device (PTC) is covered by these requirements. 1.9 A Class 2 transformer that includes a resonance regulating circuit is covered by these requirements.
Low Voltage Transformers — Part 3: Class 2 and Class 3 Transformers
Allgemeine Forderungen an ein Sicherungsprogramm@ Klasse A; Sicherheit
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Standard Practice for Determination of Nonylphenol Polyethoxylates (NPnEO, 3 x2264; n x2264; 18) and Octylphenol Polyethoxylates (OPnEO, 2 x2264; n
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Standard Classification System and Basis for Specifications for Acrylonitrile&x2013;Styrene&x2013;Acrylate (ASA) and Acrylonitrile&x2013;EPDM&
本标准规定了钢制管法兰 (Class 系列 ) 的公称尺寸、公称压力、材料、压力-温度额定值、法兰型和尺寸、密封面、公差及标记。 本标准适用于公称压力 Class150(PN20)~Class2500(PN420) 的钢制管法兰和法兰盖。法兰公称压力等级采用 Class 表示 , 包括下列六个等级:Class150,class300,Class600,class900,Class1500,Class2500 。 本标准适用的钢管公称尺寸 DN 和钢管外径按表 1.0.3 的规定。 本标准也适用于采用法兰作为连接形式的阀门、泵、化工机械、管路附件和美利体育官网首页网址零部件。 本标准不包括特殊流体工况下材料的选择原则。
Steel pipe flanges(Class designated)
本规范（PIP PN06SD0S01）规定了600级、316/316L不锈钢、承插焊、0.000英寸腐蚀余量的工艺管道材料规格。该规范旨在通过协调主要工业用户、承包商或标准组织现有标准中的技术要求，将技术要求整合为一套统一的规范，从而降低采购方和制造商的行政、应用和工程成本。虽然本规范预计包含大多数用户的大多数要求，但个别应用可能涉及需要附加并优先于本规范的要求。关于适用性目的及本规范应用于特定项目或工程情况的决定，不应仅依据这些材料中包含的信息。偶尔使用贸易名称不应被视为一种偏好，而应被视为贸易中的正常用法。具有相同规格的其他品牌同样正确，可以替代所命名的品牌。所有规范或指南均旨在与适用的法律法规（包括OSHA要求）保持一致。如果这些规范或指南与OSHA或其他适用的法律法规发生冲突，必须遵循这些法律法规。在应用或基于规范中包含或建议的任何材料采取行动之前，请咨询相关专业人士。本规范随时可能修订。
Pipe material specification Line Class 6SD0S01
Allgemeine Forderungen an ein Sicherungsprogramm@ Klasse A; Verfuegbarkeit
Allgemeine Forderungen an ein Sicherungsprogramm@ Klasse A; Instandhaltbarkeit
Marker Strips, for Class 39TB Terminal Boards
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Standard Specification for Wrought Titanium–12 Molybdenum–6 Zirconium–2 Iron Alloy for Surgi
Allgemeine Forderungen an ein Sicherungsprogramm@ Klasse A; Funktionszuverlaessigkeit
Allgemeine Forderungen an ein Sicherungsprogramm@ Klasse A; Funktionszuverlaessigkeit
Marker Strips, for Class 38TB Terminal Boards
