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[标准] JJF 1644-2017 中外标准
TF 2017/09 现行
摘要:本规范规定了临床酶学标准物质(以下简称酶标准物质)的研制策划、制备、均匀 性评估、稳定性评估、互换性评估、定值、不确定度评定、研制报告和证书、包装和贮存等要求,适用于指导临床酶学一级、二级有证标准物质的研制,也可为其他类型标准物质和临床酶学测量质量控制样品的研制提供参考。
[标准] JB/T 12855-2016 中外标准
CP 2016/04 现行
摘要:本标准规定了钢铁上的镍含量(质量分数)为5%~10%(低镍) 和10%~17%(高镍)的锌-镍合金电镀层的技术要求和试验方法。本标准适用于汽车、航天、兵器等产品零(部)件的锌镍合金电镀层。本标准不适用于:─抗拉强度大于1200MPa或维氏硬度大于370HV的零件;─质量等级大于10.9的紧固件(螺栓、螺母等);─与镁材料接触的零件。
[标准] ASTM E1582-2014 中外标准
2014/05 现行
[标准] JIS B7730-2010 中外标准
2010/08 现行
[标准] ISO/TR 10989-2009 中外标准
2009/03 现行
摘要:ISO/TR 10989:2009 covers: the results of a study into, and comparison between, existing classification and categorization schemes for reference materials, the development of reference material (RM) features and characteristics upon which a harmonized and consistent categorization scheme could be based, and approaches for making the categorization scheme adaptive to new RM needs and developments. The development of a harmonized categorization scheme aims at facilitating a transparent and comparable presentation of reference materials by producers, and the identification of reference materials by users. The intended categorization scheme was conceived to meet the needs of modern forms of information presentation and retrieval, i.e. internet-based catalogues and databases, and has been developed specifically with the view to being used this way.
[标准] GB 14544-2008 中外标准
2008/12 现行
摘要:本标准规定了氯乙烯及其聚合物生产的基本规定、生产安全、管道与设备、检维修安全、现场应急处理、安全管理。本标准适用于新建、改建和扩建的采用电石乙炔法生产氯乙烯和氯乙烯聚合物的单位。与聚氯乙烯生产有关的部门,亦应参照使用。
[标准] GB/T 4930-2008 中外标准
2008/04 现行
摘要:本标准给出了用于电子探针分析的单相标样,并规定了标样仅应用在平整抛光表面的显微分析中。本标准不包括有机物和生物标样。
[标准] GB/T 15000.3-2008 中外标准
2008/03 现行
摘要:本标准给出的统计原理旨在帮助理解和制定为标准样品特性赋值的有效方法,包括评估有关不确定度和建立计量溯源性的方法。按照本部分描述的所有步骤制得的标准样品(RM)通常附有证书,并被称为有证标准样品(CRM)。本部分将有助于充分发挥(CRM)的潜力,以确保在国家或国际范围内测量结果的可比性、准确性和一致性。  为了能在时空上可比,测量需要溯源到适当和规定的测量标准。在化学、生物学和物理学尤其是涉及材料和/或样品的学科中,CRM在建立测量结果溯源性方面具有重要作用。实验室应用CRM作为易于获得的测量标准建立其测量结果与国际标准的溯源性。在CRM生产过程中,其特性值可以溯源到SI单位或其他国际协议单位。本部分阐明如何制定能很好地确定特性值的方法,使其可溯源到适当和规定的测量标准。本部分适用于从混合气体到生物样品的各种材料(基质)范围,也适用于从化学成分到物理和免疫检验特性的各种特性。  本部分所描述的方法不一定适用于RM生产和特性值(包括有关不确定度)确定的各个方面。可以认为本部分所给出的方法是大部分RM生产和赋值的主要方法,对一些特别的情况可能需要进行适当的修正。本部分所描述的统计方法通过举例说明了方法概要,并假定数据为正态分布。当数据不是正态分布时,最好采用其他统计方法,以获得有效的特性值及相应的不确定度。本部分还概述了生产CRM 方案的设计。
[标准] ISO/TR 24094-2006 中外标准
2006/05 现行
摘要:ISO/TR 24094:2006 describes the validation of the calorific value and density calculated from current practice natural gas analysis by statistical comparison with values obtained by measurement using a reference calorimeter and a density balance.
[标准] ISO Guide 35-2006 中外标准
2006/01 作废
摘要:ISO Guide 35:2006 gives statistical principles to assist in the understanding and development of valid methods to assign values to properties of a reference material, including the evaluation of their associated uncertainty, and establish their metrological traceability. Reference materials (RMs) that undergo all steps described in ISO Guide 35:2006 are usually accompanied by a certificate and called a certified reference material (CRM). This Guide will be useful in establishing the full potential of CRMs as aids to ensure the comparability, accuracy and compatibility of measurement results on a national or international scale. In order to be comparable across borders and over time, measurements need be traceable to appropriate and stated references. CRMs play a key role in implementing the concept of traceability of measurement results in chemistry, biology and physics among other sciences dealing with materials and/or samples. Laboratories use these CRMs as readily accessible measurement standards to establish traceability of their measurement results to international standards. The property values carried by a CRM can be made traceable to SI units or other internationally agreed units during production. ISO Guide 35:2006 explains how methods can be developed that will lead to well established property values, which are made traceable to appropriate stated references. It covers a very wide range of materials (matrices), ranging from gas mixtures to biological materials, and a very wide range of properties, ranging from chemical composition to physical and immunoassay properties.
[标准] ISO 19123-2005 中外标准
2005/08 现行
摘要:ISO 19123:2005 defines a conceptual schema for the spatial characteristics of coverages. Coverages support mapping from a spatial, temporal or spatiotemporal domain to feature attribute values where feature attribute types are common to all geographic positions within the domain. A coverage domain consists of a collection of direct positions in a coordinate space that may be defined in terms of up to three spatial dimensions as well as a temporal dimension. Examples of coverages include rasters, triangulated irregular networks, point coverages and polygon coverages. Coverages are the prevailing data structures in a number of application areas, such as remote sensing, meteorology and mapping of bathymetry, elevation, soil and vegetation. ISO 19123:2005 defines the relationship between the domain of a coverage and an associated attribute range. The characteristics of the spatial domain are defined whereas the characteristics of the attribute range are not part of ISO 19123:2005.
[标准] ISO 16269-6-2005 中外标准
2005/04 作废
摘要:ISO 16269-6:2005 describes procedures for establishing tolerance intervals that include at least a specified proportion of the population with a specified confidence level. Both one-sided and two-sided statistical tolerance intervals are provided, a one-sided interval having either an upper or a lower limit while a two-sided interval has both upper and lower limits. Two methods are provided, a parametric method for the case where the characteristic being studied has a normal distribution and a distribution-free method for the case where nothing is known about the distribution except that it is continuous.
[标准] ISO 8222-2002 中外标准
2002/11 现行
摘要:ISO 8222 specifies multiplication factors for the correction of the volume of water transferred from a primary measure to a tank for changes arising from temperature differences during the determination of the capacity of the tank at reference temperature.
[标准] WJ 2529-1999 中外标准
TF 1999/06 现行
摘要:本规范规定了一级军用标准物质JBWY 05901钨合金标准物质的技术要求、质量保证规定和交货准备等。 本规范适用于一级军用标准物质JBWY 05901钨合金标准物质的制备、定值和交验。
[标准] ISO Guide 32-1997 中外标准
1997/12 作废
[标准] MT/T 423-1995 中外标准
1995/10 现行
摘要:依据安监总煤装〔2017〕125号公告,该标准不再强制执行,转化为推荐性煤炭行业标准。
[标准] CNS 13472-1995 中外标准
TW 1995/01 现行
[标准] CNS 13473-1995 中外标准
TW 1995/01 现行
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