ASTM E1338-09(2015)
识别计算机材料属性数据库中金属和合金的标准指南
Standard Guide for Identification of Metals and Alloys in Computerized Material Property Databases
ASTM E1338-09(2015) 发布历史
ASTM E1338-09(2015)由美国材料与试验协会 US-ASTM 发布于 2009。
ASTM E1338-09(2015)在国际标准分类中归属于: 77.120.01 有色金属综合。
ASTM E1338-09(2015) 发布之时，引用了标准
- ASTM E1308 ASTM E1308-92(1999)
- ASTM E1309 鉴定数据库中纤维增强聚合物基复合材料的标准指南
- ASTM E1313 ASTM E1313-95a(1999)
- ASTM E1443 ASTM E1443-94(1999)
- ASTM E1471 计算机化材料性能数据库中纤维, 填充料和磁芯材料鉴定用标准指南
- ASTM E527 金属和合金编号的标准实施规程（UNS）
- ASTM E616 ASTM E616-89
- ASTM E8 金属材料拉伸试验的标准试验方法(米制)
- ASTM E8M 金属材料拉伸试验的标准试验方法(米制)
- IEEE/ASTM SI 10 美国国家公制标准
ASTM E1338-09(2015)的历代版本如下：
- 2021年 ASTM E1338-09(2021)e1 计算机化材料特性数据库中金属和合金识别的标准指南
- 2021年 ASTM E1338-09(2021) 计算机化材料物理数据库中金属和合金的识别标准指南
- 2009年 ASTM E1338-09(2015) 识别计算机材料属性数据库中金属和合金的标准指南
- 2009年 ASTM E1338-09 计算机化材料特性数据库中金属和合金的识别指南
- 1997年 ASTM E1338-97(2003) 计算机化材料特性数据库的金属和合金的识别
- 1997年 ASTM E1338-97 计算机管理材料性能数据库的金属和合金的识别
4.1 This guide describes the types of information that are indispensable for uniquely identifying a metal or alloy in a computerized database. The purpose is to facilitate standardized storage and retrieval of the information with a computer, and allow meaningful comparison of data from different sources.
4.2 Many numbering systems for metals and alloys have been developed which are based on their chemical compositions. Separate systems have also evolved to describe the thermomechanical condition of metals and alloys in order to narrow their description. It is the separation into logical data elements from these complex, historically significant, and overlapping systems of identification that is the challenge in the identification of metals and alloys within computerized databases.
4.3 This guide is intended to provide a common starting point for designers and builders of materials property databases. This guide generally identifies the contents of the database in terms of data elements, but does not recommend any particular logical or physical database design. A database builder has considerable flexibility in designing a database schema, and it is intended that this guide support that flexibility.
4.4 It is recognized that material property databases will be designed for different levels of material information and for different purposes. For example, a database developed by an industry trade group might only identify typical properties generally representative of those for a particular metal or alloy, and not actual values measured on a specific sample. On the other hand, a business might desire to manage data on specific lots it procures, or even properties of a specific piece or sample from a lot. Consequently, some of the data elements identified in this guide might not be applicable in every database instance.
4.5 The extent of material identification implemented in a particular database depends on its specific purpose. A single organization may include substantial detail in its database. Less detail may be included in a common database used by several organizations because of commercial and other considerations. Since metals and alloys are diverse and the technologies are always changing, recommendations should not be regarded as exclusive of additional data elements for material identification. The recommended data elements should be expanded if additional detailed information which serves to identify materials is to be recorded.
4.6 A number of data elements are considered essential to any database and need to exist in the database. Data elements are considered essential if they are required for users to have sufficient information to interpret the data and be confident of their ability to compare sets of data for materials from different sources. Failure to complete an essential data element may render the record unusable in a database or in data exchange. Essential refers to the quality or completeness of recorded data, and does not necessarily have direct meaning relative to database structure. In some cases, the identified data element might be accommodated within a particular database without explicitly including a field just for the essential data element. Additionally, a database schema may require additional data fields to be not null to maintain data record integrity or to implement a mandatory d......
- 标准号
- ASTM E1338-09(2015)
- 发布
- 2009年
- 发布单位
- 美国材料与试验协会
- 替代标准
- ASTM E1338-09(2021)
- 当前最新
- ASTM E1338-09(2021)e1
- 引用标准
- ASTM E1308 ASTM E1309 ASTM E1313 ASTM E1443 ASTM E1471 ASTM E527 ASTM E616 ASTM E8 ASTM E8M IEEE/ASTM SI 10