论文部分内容阅读
pH 测量的标准历来有美国的 NBS 标准(即单标准制)和英国的 BS(即多标准制)。为了建立一个统一的 pH 测量标准,IUPAC(国际纯化学与应用化学联合会)于1985年曾发布了一个文件[见 Pure Appl.Chem.,57,531(1985)]。但这个文件只把两种标准合在一起,并未真正解决问题,多年来一直受到有关科技人员的批评。现在,这个问题可望得到解决了。2000
The standard for pH measurement has historically been the NBS standard in the United States (ie, single standard system) and the BS in the United Kingdom (multi-standard system). In order to establish a uniform pH measurement standard, IUPAC (International Union of Pure and Applied Chemistry) issued a document in 1985 [see Pure Appl. Chem., 57, 531 (1985)]. However, this document only combines the two standards and has not really solved the problem. It has been criticized by relevant scientific and technical personnel for many years. Now, this problem is expected to be solved. 2000