03.120.01 质量综合 标准查询与下载

GSO IEC 62308:2014 设备可靠性 可靠性评价方法

This International Standard describes early reliability assessment methods for items based on field data and test data for components and modules. It is applicable to mission, safety and business critical, high integrity and complex items. It contains information on why early reliability estimates are required and how and where the assessment would be used. Finally, it details methods for reliability assessment and the data required to support the assessment. To estimate durability (life time or wear-out), the physics-of-failure method is used. Three types of assessment are discussed in detail: – the similarity approach; – models for durability analysis; – handbook methods. Clause 6 provides an introduction to reliability assessment and Clause 7 the management of the process. Clause 8 describes the data needs, sources and types for assessments and Clause 9 provides details of the assessment methods. Annexes A and B provide additional information to aid understanding of the similarity analysis and durability analysis. This standard is applicable to making reliability estimates for specifications, design, design modification and support engineering.

Equipment reliability - Reliability assessment methods

GSO IEC 61649:2014 威布尔分布数据分析

This International Standard provides methods for analysing data from a Weibull distribution using continuous parameters such as time to failure, cycles to failure, mechanical stress, etc. This standard is applicable whenever data on strength parameters, e.g. times to failure, cycles, stress, etc. are available for a random sample of items operating under test conditions or in-service, for the purpose of estimating measures of reliability performance of the population from which these items were drawn. This standard is applicable when the data being analysed are independently, identically distributed. This should either be tested or assumed to be true (see IEC 60300-3-5). In this standard, numerical methods and graphical methods are described to plot data, to make a goodness-of-fit test, to estimate the parameters of the two- or three-parameter Weibull distribution and to plot confidence limits. Guidance is given on how to interpret the plot in terms of risk as a function of time, failure modes and possible weak population and time to first failure or minimum endurance.

Weibull analysis

GSO IEC 62508:2014 人为因素和依赖性方面的指南

This International Standard provides guidance on the human aspects of dependability, and the human-centred design methods and practices that can be used throughout the whole system life cycle to improve dependability performance. This standard describes qualitative approaches. Examples of quantitative methods are given in Annex A. This International Standard is applicable to any area of industry where human/machine relationships exist, and is intended for use by technical personnel and their managers. This International standard is not intended to be used for certification, regulatory or contractual use.

Guidance on human aspects of dependability

GSO IEC 61070:2014 稳定性条件的合格测试程序

This International Standard specifies techniques for availability performance testing of frequently maintained items when the availability pe rformance measure used is either steady-state availability or steady-state unavailability. It is applicable to compliance testing of the steady-state availability of items attaining only two states, up-state and down-state, under the following conditions: 1) One single repaired item. 2) All up times have the same exponential distribution. NOTE - This usually implies the need for operation to reach the constant failure intensity period before the compliance test is begun. 3) Preventive maintenance time is not included in down time although it is recognized as having possible impact on availability pe rformance. 4) All contributors to down time need to be explicitly stated in the requirement or test specification. 5) Very reliable items may require an extremely long test time to determine compliance. NOTE - With a highly reliable item, few or even zero failures may occur within a designated period of time. In such a case, there will be little or (possibly) zero quantitative information on the availability performance since there may be no repair actions. Parties (supplier and customer) applying this standard should agree on the decision to be made in such an eventuality. In general it is recommended that before the parties invoke this standard in a contract they calculate, or simulate, the results to be obtained from the compliance test. In this way both parties will be knowledgeable regarding the risks they are facing. 6) The compliance test procedures use the complementary measure steady-state unavailability.

Compliance test procedures for steady-state availability

GSO IEC 60319:2014 电子元件可靠性数据的表示和规范

This International Standard gives guidance for the collection and presentation of data necessary to understand the reliability characteristics of a component. It also gives guidance to component users as to how they should specify their reliability requirements to component manufacturers. It makes no distinction between data on failures or operation without failures or faults. Such factual information, derived from laboratory tests, should be available to the circuit and equipment designers to enable evaluation of the reliability of circuits and systems.

Presentation and specification of reliability data for electronic components

GSO IEC 62429:2014 可靠性增长 针对独特复合系统过早失效的压力测试

This International Standard gives guidance for reliability growth during final testing or acceptance testing of unique complex systems. It gives guidance on accelerated test conditions and criteria for stopping these tests. “Unique” means that no information exists on similar systems, and the small number of produced systems means that information deducted from the test has limited use for future production. This standard concerns reliability growth of repairable complex systems consisting of hardware with embedded software. It can be used for describing the procedure for acceptance testing, "running-in", and to ensure that reliability of a delivered system is not compromised by coding errors, workmanship errors or manufacturing errors. It only covers the early failure period of the system life cycle and neither the constant failure period, nor the wear out failure period. It can also be used when a company wants to optimize the duration of internal production testing during manufacturing of prototypes, single systems or small series. It is applicable mainly to large hardware/software systems, but does not cover large networks, for example telecommunications and power networks, since new parts of such systems cannot usually be isolated during the testing. It does not cover software tested alone, but the methods can be used during testing of large embedded software programs in operational hardware, when simulated operating loads are used. It addresses growth testing before or at delivery of a finished system. The testing can therefore take place at the manufacturer's or at the end user's premises. If the user of a system performs reliability growth by a policy of updating hardware and software with improved versions, this standard can be used to guide the growth process. This standard covers a wide field of applications, but is not applicable to health or safety aspects of systems. This standard does not apply to systems that are covered by IEC 62279[39].

Reliability growth - Stress testing for early failures in unique complex systems

GSO IEC 61710:2014 幂律模型 拟合优度检验和估计方法

This International Standard specifies procedures to estimate the parameters of the power law model, to provide confidence intervals for the failure intensity, to provide prediction intervals for the times to future failures, and to test the goodness-of-fit of the power law model to data from repairable items. It is assumed that the time to failure data have been collected from an item, or some identical items operating under the same conditions (e.g. environment and load).

Power law model - Goodness-of-fit tests and estimation methods

GSO IEC 62347:2014 系统可靠性规范指南

This International Standard gives guidance on the preparation of system dependability specifications. It provides a process for system evaluation and presents a procedure for determining system dependability requirements. This International Standard is not intended for certification or to perform conformity assessment for contractual purposes. It is not intended to change any rights or obligations provided by applicable statutory or regulatory requirements.

Guidance on system dependability specifications

GSO IEC 61650:2014 可靠性数据分析技术 比较静态故障率和静态故障（事件）强度的程序

This International Standard specifies procedures to compare two observed – failure rates; – failure intensities; – rates/intensities of relevant events. The procedures are used to determine whether an apparent difference between the two sets of observations can be considered statistically significant. It is assumed that the time intervals to/between the failures (events) are independent and identically exponentially distributed during the observation period (that is, the accumulated relevant test time). NOTE – This assumption implies that the failure rate/intensity is constant. It is furthermore assumed that there are technical or other reasons to believe that a difference (either an improvement or deterioration) might exist between the observed reliability characteristic of the two sets of items under comparison. Some examples of typical applications are described in 5.4. The methods are designed as hypothesis tests which state, with a specified risk (the significance level), whether the two series of observations belong to the same population or the same process, that is they have the same true mean value. NOTE – Failure rate, which is relevant to non-repaired items, is associated with a distribution of times to failure. Failure intensity, which is relevant to repaired items only, is associated with a point process describing a sequence of events, for example times between failures on a time axis. The procedures are not restricted to comparison of failure rate/intensity, but can be applied to observations of two series of any relevant events, provided the above assumptions are valid. NOTE – The two series of observations may be of items from the same population, or the same item under different conditions (for example environment and load), or just comparable series of events (for example car accidents on a road). Numerical methods and a graphical procedure are prescribed. The observation periods relevant to the two series do not need to be equal, but if they are, the methods are very simple.

Reliability data analysis techniques - Procedures for comparison of two constant failure rates and two constant failure (event) intensities

SL/T 2-2014 水利水电量和单位

Water conservancy, hydropower and units

SL 2-2014 水利水电量和单位

本标准规定了水利水电技术领域使用的量和单位的一般原则，以及水利水电技术领域通用量和专业量的名称(含量的英文名称)、量的符号、单位名称和简称、单位符号和量的定义。本标准适用于水利水电技术领域中量和单位的确定和使用。

Quantities and units in water resources and hydropower

DB34/T 2145-2014 安徽省优质产品生产示范区工作规范

本标准规定了安徽省优质产品生产示范区的术语和定义、工作机构、创建条件、批准创建、验收条件、考核验收、审核批准、监督管理、考核验收指标、创建申报书格式要求、验收申报书格式要求。 本标准适用于安徽省优质产品生产示范区的创建、验收和管理等。

Work Specifications for High-quality Product Production Demonstration Zone in Anhui Province

GOST R 56245-2014 管理系统标准发展指南

Guidelines for the management system standards development

GOST R 56176-2014 "航空, 航天和国防工业企业的质量管理系统. 关键特征的变更管理"

Quality management systems for enterprises of aviation, aerospace and defence industries. Variation management of key characteristics

GOST R 56002-2014 施工组织的经验和商业信誉评价

Assessment of experience and business reputation of construction organizations

GOST R 56301-2014 工业园区. 要求

Industrial parks. Requirements

GSO IEC 62628:2013 软件可靠性方面指南

This International Standard addresses the issues concerning software aspects of dependability and gives guidance on achievement of dependability in software performance influenced by management disciplines, design processes and application environments. It establishes a generic framework on software dependability requirements, provides a software dependability process for system life cycle applications, presents assurance criteria and methodology for software dependability design and implementation and provides practical approaches for performance evaluation and measurement of dependability characteristics in software systems. This standard is applicable for guidance to software system developers and suppliers, system integrators, operators and maintainers and users of software systems who are concerned with practical approaches and application engineering to achieve dependability of software products and systems.

Guidance on software aspects of dependability

DS/EN 62673:2013 通信网络可靠性评估和保障方法

This International Standard describes a generic methodology for dependability assessment and assurance of communication networks from a network life cycle perspective. It presents the network dependability assessment strategies and methodology for analysi

Methodology for communication network dependability assessment and assurance

BS EN 62673:2013 通信网络可靠性评估和保证方法

What is BS EN 62673 - Communication network dependability assessment about?     BS EN 62673 describes a generic methodology for dependability assessment and assurance of communication networks from a network life cycle perspective. BS EN 62673 presents the network dependability assessment strategies and methodology for analysis of network topology, evaluation of dependability of service paths, and optimization of network configurations in order to achieve network dependability performance and dependability of service.    BS EN 62673 addresses the network dependability assurance strategies and methodology for the application of network health checks, network outage control, and test case management to enhance and sustain dependability performance in-network service operation.

Methodology for communication network dependability assessment and assurance

EN 61710:2013 幂律模型 拟合优度检验和估计方法

IEC 61710:2013 specifies procedures to estimate the parameters of the power law model, to provide confidence intervals for the failure intensity, to provide prediction intervals for the times to future failures, and to test the goodness-of-fit of the power law model to data from repairable items. It is assumed that the time to failure data have been collected from an item, or some identical items operating under the same conditions (e.g. environment and load). This second edition cancels and replaces the first edition, published in 2000, and constitutes a technical revision. The main changes with respect to the previous edition are listed below: the inclusion of an additional Annex C on Bayesian estimation for the power law model. Keywords: power law model, Bayesian estimation, reliability of repairable items

Power law model - Goodness-of-fit tests and estimation methods