2019-10-15 17:13:49
The standard sample is the physical standard, it is another form of the standard, and the text standard together can form a complete standard. Nowadays, people require a reference standard for many things in order to unify the quality of some products with larger production volumes, and standard samples can bring people a unified method of product quality inspection.
So, do you know what are the characteristics of standard samples? Next, Bolinda Xiaobian to introduce you.
What are the characteristics of the standard sample:
1, with a certain degree of uniformity. In order to ensure the consistency of technical standards in different environments and space applications, the values provided by different standard samples are consistent in the same batch of materials used for measurement, no matter where or at what time.
2. It's easy to determine. The standard value of the standard sample is required to be reliable, allowing a small error on the limit, but it must meet the technical requirements in the text standard, and has enough stability to ensure that the quantity value transfer is uniform and reliable in the same time within the validity period.
3, in line with the "standard sample work Guidelines Standard sample commonly used terms and definitions" in its definition, and through professional technical identification, and approved by the national standardization management body. Such a standard sample can really be counted as a standard sample.
The above content is what the characteristics of the standard sample are introduced, the standard sample not only plays a huge role in physical chemistry, biological engineering, etc., in our social production has always had a very important position, for our times progress, scientific development and economic prosperity, has a very important practical significance.