ISO 10012:2003国际标准讲座第十八讲测量管理体系审核与评价(二)(续18)

2测量管理体系内部审核程序 2.1测量管理体系内部审核流程 测量管理体系内部审核流程大体包括:a)内部审核策划(或审核启动);b)内部审核准备(含文件评审);c)内部审核实施(含各种会议和现场审核);d)内部审核结论(含内部审核报告);e)内部审核后续活动(含纠正/预防措施的制定、实施和跟踪验证).     

浅谈实验室如何开展内部审核

本文介绍了实验室如何开展管理体系内部审核,阐述了内部审核目的、审核依据、审核策划、审核实施、审核的后续工作。确保质量管理体系运行的符合性、有效性。     

简述公司质量体系自我评价及实施

TS16949:2009标准中已明确提出了质量体系内部评价的三种方法:体系审核、管理评审和组织的自我评价,体系审核中包括内部审核、过程审核、产品审核均是企业自我评价的一部分,评价体系有效性应该从多方面进行评价,要对各要素的有效性评价、纠正预防措施评价、成本评价、产品质量的目标达成等方面进行评价,内部审核、管理评审是企业自我完善、提高运行效率、保证质量体系适用性、有效性的手段,体系评价既是检查内部审核、外部审核结果符合性的手段,又是实施管评的方法,是企业质量体系持续改进的工具。     

标准导读

GB/T28450—2012《信息安全技术信息安全管理体系审核指南》。本标准在GB/T19011—2003的基础上为信息安全管理体系(简称ISMS)的审核原则、审核方案管理和审核实施提供了指导,并对审核员的能力及其评价提供了指导。本标准适用于需要实施ISMS内部审核、外部审核或对审     

远程审核技术应用实践的三个阶段

远程审核技术的出现为审核员和受审核方现场及设施之间的适时文件数据共享、音视频连接提供了最佳可能方法.在认证方案策划阶段,应采用"远程审核方案风险评估数据模型"进行辅助决策;在远程审核实施前,应进行必要的信息和通信技术(ICT)"测试";在远程审核实施阶段,应使用安全的web会议应用程序,采用一个安全的文档共享工具以确保...     

实验室如何有效实施内部质量审核

结合自己参与实验室内部质量审核(以下简称内审)的体会和经验,从内审的策划、组织实施、审核技巧以及审核过程中需要注意的问题等方面,论述了实验室如何有效实施内审的关键问题,并阐述了通过内审如何进一步促进实验室管理体系的运行及改进。     

提高温度、湿度、流量测量内部审核的有效性

介绍了如何开展温度、湿度、流量的内部审核;阐述了内审策划是实施有效内审的重要基础,过程控制是实施有效内审的保证,审后改进是实现内审有效性的关键环节;提出了提高内部审核有效性的建议,确保了检测/校准实验室管理体系运行的有效性。     

浅谈实验室内部审核的开展与实施

本文根据CNAS-CL01:2018《检测和校准实验室能力认可准则》的要求,结合自己参与实验室内部审核(以下简称"内审")的工作实践,浅谈检测实验室内部审核的开展与实施。     

检测实验室开展内部审核活动的认识

本文从CNAS-CL01:2006《检测和校准实验室能力认可准则》(ISO/IEC 17025:2005)及《实验室资质认定评审准则》(国认实函〔2006〕141号)有关实验室内部审核活动的要求出发,结合自己的工作体会,介绍了检测实验室开展内部审核活动的目的、组织、计划、实施及改进过程,并就如何开展好检测实验室内部审核活动提出了自己的观点。     

ISO19011—2002质量及环境管理体系审核指南

前言为了监控和核实一个组织的质量和/或环境方针的有效实施,ISO9000和ISO14000系列国际标准强调审核的重要性。审核也是外部认证/注册和供应链的评价和监督的符合性评估活动的重要部分。本国际标准提供对:审核方案、质量及环境管理体系的内部或外部审核的实施、还有审核员的能力和评价等的指南。本标准致力应用于广泛范围的使用者,诸如审核员,实施质量及环境管理体系的组织,按合同需要实施质量及环境管理体系审核的组织,涉及审核员认证或培训,认证/注册管理体系以及鉴定或符合性评估领     

Estimation of Parameters of Universal Distribution of Moments of Failure of Products

A method is proposed for estimating the parameters of a mixture of exponential and Weibull distributions for which the accuracy of preliminary estimates obtained by graphical analysis is refined in accordance with the criterion of maximum likelihood. The efficiency of the proposed method is supported by the results of statistical modeling.     

Evaluation of optical properties of highly scattering media by moments of distributions of times of flight of photons

A novel method for the determination of the optical properties of tissue from time-domain measurements is presented. The data analysis is based on the evaluation of the first moment and the second centralized moment, i.e., the mean time of flight and the variance of the measured distribution of times of flight (DTOF) of photons injected by short (picosecond) laser pulses. Analytical expressions are derived for calculation of absorption and of reduced scattering coefficients from these moments by application of diffusion theory for infinite and semi-infinite homogeneous media. The proposed method was tested on experimental data obtained with phantoms, and results for absorption and reduced scattering coefficients obtained by the proposed method are compared with those obtained by fitting of the same data with analytical solutions of the diffusion equation. Furthermore, the accuracy of the moment analysis was investigated for a range of integration limits of the DTOF. The moment analysis may serve as a comparatively fast method for evaluating optical properties with sufficient accuracy and can be used, e.g., for on-line monitoring of optical properties of biological tissue.     

Estimation of potentialities of methods of summation of direct measurement errors

Conventional methods for summation of direct measurement errors are considered. Conditions under which these methods provide consistent results are stated. It is proposed to utilize for characteristic of the total error, its interval estimator or the half-sum of the value obtained by adding up its arithmetic and geometric random errors.Translated from Izmeritel'naya Tekhnika, No. 4, pp. 10–12, April, 1995.     

Analysis of the rate of propagation of the wave of change of boiling modes

An approximate analytical expression is derived for the velocity of the front of the wave of change of boiling modes on a rod and on a plate. The impact of the Thomson effect and of the heater orientation in the gravity field is included. Adequate agreement is demonstrated between the derived relations and experimental data.     

空压机轴承箱蜗壳温度探头油封改造

由于空压机进气侧轴承箱蜗壳温度探头密封效果不好,使空压机及其后续管道受到油污染。后将温度探头的O形圈密封改为骨架油封,杜绝了轴承箱漏油问题。文章简介空压机的结构和技术参数,详细介绍了骨架油封的制作和优点。     

Characteristics of mechanical properties of materials in studies of conditions of attainment of marginal states

It is shown that conditions of attainment of marginal states in the material of structural components are formulated on the basis of analysis of force and deformation criteria of formation and development of destruction. The parameters of these criteria are data on types of structural materials, standard and special characteristics of their mechanical properties, structural forms of considered elements of the equipment, and their operating stress loading. In this case, the construction of a system of state equations for describing interrelation of current damage, external actions, and responses to them is based on the concept of calculating variations in properties of materials at all stages of the design life cycle.     

Determination of parameters of microstructural inhomogeneity of deformation of metals by the method of modeling

The article suggests a method of evaluating the microstructural inhomogeneity of deformation of metals by modeling. The method includes the measurement of deformations of metal according to meshes of a dividing grid with small base and the calculation of the distribution parameters of microdeformations in model representation. It is shown that the modeling method makes it possible objectively to evaluate the microinhomogeneity of deformation of metals independently of the chosen mesh size of the dividing grid. New structural characteristics are introduced: the base and wave of variation expressing the degree of crumbling or amalgamation of metal grains by inhomogeneity of deformation.Translated from Problemy Prochnosti, No. 7, pp. 40–44, July, 1991.     

水三相点复现的不确定度评定

水三相点是开尔文热力学温度的唯一基准点，也是ITS-90国际温标重要的定义固定点。因此，水三相点不确定度分析对整个温标的建立、温度量值传递起着至关重要的作用。近3年来，中国计量科学研究院研制出一系列高质量的水三相点容器，加强了水三相点的研究，为不确定度的分析提供了更为可靠的实验依据。同时，不确定度的分析也是客观评价新研制容器性能的一个重要指标。因此，根据实验结果对新研制容器所复现的水三相点进行了不确定度评定。评定结果表明，其扩展不确定度为0．16mK(k=2．69，P=0．99)。