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81.
82.
The experience of implementing a quality system on ISO 17025, and the accreditation of some tests for a university laboratory,
is presented in the example of the Environmental Radiology Laboratory. Such implementation in a university institution is
a difficult task, since the setting and environment are both unfavourable. The particularities are the collaboration of many
independent units of the university, and the involvement of teachers and young researchers who have to coordinate all these
different tasks, which makes the number of people working quite variable. Some specific aspects of the system are discussed.
The conclusion is that implementation of a quality system on ISO 17025 and accreditation are completely achievable, and are
helpful activities to put university members in touch with the real world and broaden their minds, which in the end has a
positive impact on research studies and academic content. 相似文献
83.
84.
计算光谱成像是一种新型的光谱成像技术,具有高通量、快照式成像等优点,但关于其成像质量评价的研究还很少。工作中探索了一种计算光谱成像系统成像质量的定量评价方法。该方法利用ISO 12233靶标作为目标源,进行成像、图谱信息重构,并通过测量重构图的调制传递函数(MTF)作为计算光谱成像系统的成像质量评价标准。结果表明,对于单帧采样,随着混叠谱段数的增加,重构图MTF迅速下降,当混叠波段的数目达到9个时,重构图MTF与目标场景图像相比已下降50%。该研究有助于理解计算光谱成像技术的优缺点,合理安排混叠谱段的数量,以精确地复原目标信息。 相似文献
85.
86.
Collagen products will degrade and evoke certain local tissue reaction after being implanted. ISO 10993.6 is the international standard to evaluate local tissue reaction for biomaterials. However, even in the present version, it does not define the specific view fields for scoring local tissue reaction in the sections, which may influence the fair evaluation for the degradable polymer, such as collagen. In this study, 4 kinds of collagens and 2 kinds of bio-inert products were implanted into the rabbit muscle for 26 weeks, and two different scoring methods (uniform distribution scoring method and area locating scoring method) were applied to evaluate the local tissue reaction for each implant. The results showed that the tissue reaction on the interface was active, but the various scores in the implant and surrounding areas could help us to understand the differences of the degradation process. An area locating scoring method which selected the fields in the implant, interface and surroundings respectively showed a higher total score and offered more detailed information compared to the uniform distribution scoring method. Since the degradation and tissue reaction degree in the different areas are ever changing for the degradable implants, this area locating scoring method is sensitive, effective and applicable for the semi-quantitative evaluating system of ISO 10993.6. 相似文献
87.
介绍ISO/REMCO 2007年已开展的和2008年将要开展的工作.重点介绍ISO/REMCO与标准物质相关的文件制定等一系列工作. 相似文献
88.
L. Huber 《Accreditation and quality assurance》1999,4(3):87-89
To help users of laboratory instrumentation to obtain laboratory accreditation and International Organization of Standardization
certification, instrument manufactures should develop a comprehensive compliance programme for their products that includes
product features, documentation and services for equipment validation and qualification.
Received: 5 October 1998 · Accepted: 20 October 1998 相似文献
89.
90.
水中氟化物国际标准检验方法的验证及其比较 总被引:2,自引:0,他引:2
曾兰英 《分析测试技术与仪器》2006,12(1):47-50
介绍水中氟化物国际标准检验方法的验证结果,其中包括了干扰实验、标准曲线、准确度、精密度、检出限等.并将本方法测定结果与国标同类方法进行了比较.结果表明,该方法抗干扰性好,测量精度高,其标准曲线范围宽,点数设计合理,优于国标中的同类方法.应加以采纳和推广. 相似文献