AS IEC 60645.1 pdf download
AS IEC 60645.1 pdf download Electroacoustics—Audiological equipment Part 1: Pure-tone audiometers (IEC 60645-1:2001, MOD) 1Scope and object This part of IEC 60645 specifies general requirements for audiometers and particularrequirements for pure-tone audiometers designed for use in determining hearing thresholdlevels,in comparison with standard reference threshold levels by means of psychoacoustictest methods. The object of this lnternational Standard is to ensure: a)...
AS IEC 60812 pdf download
AS IEC 60812 pdf download Analysis techniques for system reliability—Procedure for failure mode and effects analysis (FMEA) 4overview 4.1Introduction Failure Modes and Effect Analysis (FMEA) is a systematic procedure for the analysis of asystem to identify the potential failure modes, their causes and effects on system performance(performance of the immediate assembly and the entire system or a process). Here， the...
AS IEC 61025 pdf download
AS IEC 61025 pdf download Fault tree analysis 1 Scope This International Standard describes fault tree analysis and provides guidance on itsapplication as follows: definition of basic principles; describing and explaining the associated mathematical modelling; explaining the relationships of FTA to other reliability modelling techniques;description of the steps involved in performing the FTA; identification of appropriate assumptions, events and failure...
AS IEC 61160 pdf download
AS IEC 61160 pdf download Design review 11) that the design’s drawings, software codes and specifications is full and complete. Normally only the recommendations from the review should be documented, but for safetyissues it is important to list all the risks considered and the reason for recommending or notrecommending actions. As a result of the action items identified and recommendations...
AS IEC 61165 pdf download
AS IEC 61165 pdf download Application of Markov techniques scope This International Standard provides guidance on the application of Markov techniques tomodel and analyze a system and estimate reliability, availability，maintainability and safetymeasures. This standard is applicable to all industries where systems, which exhibit state-dependentbehaviour, have to be analyzed. The Markov techniques covered by this standard assumeconstant time-independent’state transition rates. Such...
AS IEC 62308 pdf download
AS IEC 62308 pdf download Equipment reliability—Reliability assessment methods The procedure outlined in this standard is aimed at providing reliability analysts, project managers, risk management engineers, designers, safety and reliability engineers, and logistic support engineers with an assessment method for an early estimate of an item’s instantaneous failure rate. The process for estimating life for items with a wear-out failure...
AS IEC 62347 pdf download
AS IEC 62347 pdf download Guidance on system dependability specifications 4 Concepts dealing with system dependability 4.1 Understanding the system 4.1.1 Purpose and objective A system is designed for a purpose. A system must have a defined objective to achieve its purpose. The purpose of a home theatre system is to provide cinema-like entertainment in a home environment. The objectives...
BS IEC 60191-1 pdf download
BS IEC 60191-1 pdf download Mechanical standardization of semiconductor devices — Part 1: General rules for the preparation of outline drawings of discrete devices 1 scope and object This part of lEC 60191 gives guidelines on the preparation of outline drawings of discretedevices. NOTE For preparation of outline drawings of surface mounted discrete devices IEC 60191-6 should be referred toas...
BS IEC 60313 pdf download
BS IEC 60313 pdf download COAXIAL CONNECTORS USED IN NUCLEAR LABORATORY INSTRUMENTATION 1scope and object This International Standard applies to coaxial connectors for electrical instruments used innuclear laboratories. While particularly useful in such applications, the connectors includedin this standard are also useful in other applications. However， this standard does notnecessarily apply to nuclear power installations where special requirements may necessitatethe...
BS IEC 61888 pdf download
BS IEC 61888 pdf download Nuclear power plants — Instrumentation important to safety — Determination and maintenance of trip setpoints 1 scope This standard defines the requirements for assuring that automatic setpoints for nuclearsafety system instrumentation (as defined in clause 3), are established and maintained withinspecified limits in nuclear power plants and nuclear reactor facilities. 2 Normative references The following...