031 标准查询与下载

DS/EN 45002:1991 检验实验室认证的通用标准

The standard sets out criteria which should be applied by accreditation bodies in accrediting laboratories, by public authorities when designating laboratories for regulatory purposes. The criteria are written to be considered as general criteria covering all fields of testing including calibration.

General criteria for the assessment of testing laboratories

DS/INF 22-45:1989 ISO/IEC指南45．试验结果介绍指南

Denne DS-lnformation indeholder krav til angivelse af pr?v-ningsresultater og andre oplysninger, der er relevante for forst?elsen af disse resultater. Form?let er desuden af sikre, at pr?vningsrapporten med de angivne pr?vningsresultater indeholder de oplysninger, der er af betydning for, at pr?vningen kan reproduceres. DS-lnformationen er beregnet til pr?vningslaboratorier, kontrollerende organer, certificeringsorganer og godkendelsesor-ganer, fabrikanter, offentlige og private k?bere og andre inter-esserede parter. Den kan ogs? anvendes af standardiseringsorganer, autorisationsorganer, forskriftsudstedende myndigheder o.lign. Ved et pr?vningslaboratorium forst?s de faciliteter og aktiviteter, som findes eller ud?ves p? et s?rligt udpeget sted.

Guidelines for the presentation of test results

DS/INF 22-50:1989 儿童安全和标准．通用指南

Child safety and standards. General guidelines

DS/INF 22-31:1988 ISO指南31．参考资料证明的内容

A series of headings is given in clause 2 to indicate the information that shoufd be provided on a certificate. An explanation is given under each heading, together with examples where more ctarification seemed to be necessary. In the compilation of these headings, the aim was to cover the required information on as wide a range of reference materials as possible, taking into account such diverse examples as a triple-point cell, a microscope magnification standard, a powdered rock, and a biologicai material. Some of the headings may not be needed for a particular material but these are likely to be the exception rather than the rule, The headings are given in what seems to be a logicai order for the presentation of the information, which in summary is as follows : the general particulars of the certifying organization and the reference material ［name, sample, number, date of certificate, etc. (see 2.1 to 2.10)]; a description of the material and its intended use (see 2.11 to 2.16); the certified values, their confidence limits, and an explanation of these values and the techniques usedfor their measurement (see 2.17 to 2.21); the references and the names of participating analysts and certifying officers (see 2.22 to 2.25). It should be ernphasized that this Guide is concerned with the informational contents of the certificate and not its style or format. Thus, the order of headings and the wording of the headings may be changed to suit the reference material or the preferences of the producer.

Contents of certificates of reference materials

DS/INF 22-48:1988 ISO/IEC指南48．供应商质量系统的第三方评定和注册指南

Denne DS-lnformation fastl?gger de kriterier, der skal overholdes, s?tedes at det sikres, at certificeringsorganet admini-strerer systemer til trediepartsbed?mmelser p? konsekvent og p?lidelig vis, hvilket letter godkendelse og anerkendelse af certificeringsorganet b?de nationalt og internationalt. Denne DS-lnformation skal ogs? danne grundlag for harmonisering af systemer til trediepartsbed?mmelser, men mange af bestemmelserne kan anvendes ved toparts-bed?mmel-sesprocedurer.

Guidelines for third-party assessment and registration of a supplier's Quality System

DS/INF 22-35:1988 ISO指南35．参考资料证明．一般原则与统计原则

According to the definition (2.1), RMs may be used in diverse measurement roles connected with instrument calibration, method assessment and assignment of property values. The purpose of clause 3 is to discuss these measurement roles and to show how traceability1) of measurement may be secured by use of RMs, thus yielding worldwide compatibility of measurement. Just as CRMs are to be preferred over other classes of RMs in citations in International Standards (1), so also are CRMs to be preferred over other classes of RMs in measurement science generally, given that CRMs needed for a particular type of measurement exist. Assistance in locating the source(s) of supply of CRMs for various technical fields is afforded by ISO's Directory of certified reference materials(4). It will be evident that the quality of a measurement based on use of a CRM will depend in part on the effort and care expended by the certifying body on determining the property value(s) of the candidate CRM. Hence the process of certification(2) should be carried out using well-characterized measurement methods that have high accuracy as well as precision and provide property values traceable to fundamental units of measurement. Furthermore, the methods should yield values with uncertainties that are appropriate to the expected end-use of the CRM. Clauses 4 and 5 deal with two of the most important technical considerations in the certification of RMs — measurement uncertainties and material homogeneity. Clause 6 provides general principles for RM certification. Two commonly used general approaches to assuring technically valid RM certification are discussed in clauses 7 and 8 of this guide. Clause 7 describes the use of a single method of the highest accuracy (i.e. sometimes referred to as a "definitive" or "absolute" method) and usually employed by a single laboratory for RM certification. Clause 8 describes the use of an interlaboratory testing approach to RM certification, which might involve more than one method. In summary, the purpose of this guide is to assist in understanding valid methods for the certification of RMs and also to help potential users to better define their technical requirements. The guide should be useful in establishing the full potential of CRMs as aids to assuring the accuracy and interlaboratory compatibility of measurements on a national or international scale.

Certification of reference materials. General and statistical principles

DS/INF 22/46:1986 消费品和相关服务的比较测试 一般原则

The standard gives general principles for the conduct of comparative testing. These are applicable to consumer products, services and a combination of both - for the information of consumers.

Comparative testing of consumer products and related services. General principles