IEC 61882 pdf download
IEC 61882 pdf download.Hazard and operability studies (HAZOP studies) – Application guide 1 Scope This International Standard provides a guide for HAZOP studies of systems utilizing the specific set of guide words defined in this document. It also gives guidance on application of the technique and on the HAZOP study procedure, including definition, preparation, examination sessions and resulting documentation and...
IEC 62079 pdf download
IEC 62079 pdf download.Preparation of instructions – Structuring, content and presentation 1 Scope This International Standard provides general principles and detailed requirements for the design and formulation of all types of instructions that will be necessary or helpful for products of all kinds ranging from small, simple ones, such as a tin of paint, to large or highly complex ones,...
IEC 61828 pdf download
IEC 61828 pdf download.Ultrasonics – Focusing transducers – Definitions and measurement methods for the transmitted fields 1 Scope This International Standard − provides definitions for the transmitted field characteristics of focusing transducers for applications in medical ultrasound; − relates these definitions to theoretical descriptions, design, and measurement of the transmitted fields of focusing transducers; − gives measurement methods for obtaining...
IEC WT-01 pdf download
IEC WT-01 pdf download.IEC System for Conformity Testing and Certification of Wind Turbines 1 Title The title of the System is: IEC System for conformity testing and certification of wind turbines”, hereinafter referred to as “the IEC WT System”. 2 Object Taking into account the object of the International Electrotechnical Commission (IEC) as given in Article 2 of the Statutes,...
IEC 62070 pdf download
IEC 62070 pdf download.Broadcast digital video tape recorders – Identification method for recording and/or reproduction error status 1 Scope This International Standard specifies methods for indicating the record and/or reproduction error status of broadcast-grade digital VTRs utilizing a Reed Solomon product error correction code. (This code is hereinafter referred to as RS.) This standard also specifies methods of measuring the...
IEC 61631 pdf download
IEC 61631 pdf download.Test method for the mechanical strength of cores made of magnetic oxides 3 Definitions For the purpose of this International Standard, the following definition applies. 3.1 mechanical strength the maximum recorded force at the instant of fracture of a magnetic oxide core when it is loaded in bending 4 Apparatus 4.1 Test core support and loading wedge...
IEC 60623 pdf download
IEC 60623 pdf download.Secondary cells and batteries containing alkaline or other non-acid electrolytes 1 General 1 .1 Scope This International Standard specifies marking, designation, dimensions, tests and requirements for vented nickel-cadmium prismatic secondary single cells. NOTE In this context, “prismatic” refers to cells having rectangular sides and base. When there exists an IEC standard specifying test conditions and requirements for...
IEC 60925 pdf download
IEC 60925 pdf download.DC supplied electronic ballasts for tubular fluorescent lamps – Performance requirements 1 Scope This standard specifies general performance requirements for electronic ballasts for use on d.c. supplies having rated voltages not exceeding 250 V, associated with fluorescent lamps complying with IEC 60081. It shall be read in conjunction with IEC 60924. Performance requirements for electronic ballasts for...
IEC 61669 pdf download
IEC 61669 pdf download.Electroacoustics – Equipment for the measurement of real-ear acoustical characteristics of hearing aids 1 Scope This International Standard specifies the general requirements for test equipment designed for use in measuring the real-ear acoustical characteristics of hearing aids and describes the terminology used. The purpose of this International Standard is to ensure that measurements of real-ear acoustical characteristics...
IEC 61204 pdf download
IEC 61204 pdf download.Low-voltage power supply devices, d.c. output – Performance characteristics 1 General 1.1 Scope and object This international Standard describes a method for specifying requirements for low-voltage power supply devices (including switching types) providing d.c. output(s) up to 200 V d.c. at a power level of up to 30 kW, operating from a.c. or d.c. source voltages of...