质量控制作为生产过程中的一部分已经被广泛地接受了，高质量的产品需要高水平的质量控制。近来发表的论文和我们的经验表明在不少的情况下质量控制是不好的。显然，这个问题需要解决。1有证书的实验室参与给实验室发证书的国家标准协会正做着很好的工作，以改进检测的现状。但 Quality control has been widely accepted as part of the production process. High-quality products require a high level of quality control. Recent published papers and our experience show that in many situations quality control is not good. Obviously, this problem needs to be solved. 1Laboratory with certificates The National Standards Association, which is involved in issuing certificates to laboratories, is doing a good job to improve the status quo of testing. but