首  页 | ChemDB Portal | 帮  助 | 论  坛 |  关于本站 | 动态网页




     The values of the constants provided at the site are recommended for international use by CODATA and are the latest available. Termed the "1998 CODATA recommended values," they are generally recognized worldwide for use in all fields of science and technology. The values became available in July 1999 and replaced the 1986 CODATA set. They are based on all of the data available through 31 December 1998. A detailed description of the data and the analysis that led to these values may be found in the Journal of Physical and Chemical Reference Data, Vol. 28, No. 6, pp. 1713-1852, 1999 and in the Reviews of Modern Physics, Vol. 72, No. 2, pp. 351-495, 2000.

Citation example:

P. J. Mohr and B. N. Taylor, "The 1998 CODATA Recommended Values of the Fundamental Physical Constants, Web Version 3.1," available at (National Institute of Standards and Technology, Gaithersburg, MD 20899, 3 December 1999).

  CODATA Key Values for Thermodynamics (CODATA推荐的主要化学物质热力学标准数据值)

Summary by 李晓霞 on 2002-11-05

Last updated by 李晓霞 on 2002-11-05

访问统计 | 软 件 | 论文专著 | 请留言 请在800x600分辨率以上,用IE4.0以上版本浏览
版权所有 © 1998 - 2015 中国科学院过程工程研究所