各有关单位: 化验室是水泥企业质量控制的重要部门,而水泥对比试验是考核化验室试验操作准确性、稳定性和一致性的重要手段,也是化验室强化内部质量管理、提高检测技术和水平的主要途径。 因此,“水泥企业质量管理规程”和“水泥企业产品质量对比验证检验管理办法”早已作出规定:地方水泥企业必须每月送一个样品到上级质检部门进行对比验证:我省行业主管部门对此项工作也非常重视,先后通过粤建函[1997]345号文和粤建材[1999]019号文对此作了明确规定:水泥企业定期向省站每年至少送10次对比验证样,且对比合格率不能少于70％。 2000年度,我省有不少水泥企业积极送样,与我站进行比对,但也 All relevant units: The laboratory is an important part of the cement company’s quality control, and the cement contrast test is an important means for assessing the accuracy, stability, and consistency of the laboratory’s test operations. It is also the laboratory’s internal quality management and testing techniques. The main way. Therefore, the “Quality Management Procedures for Cement Enterprises” and the “Management Verification Test Methods for Cement Enterprise Product Quality” have long been stipulated: Local cement companies must send one sample per month to the superior quality inspection department for comparative verification: The project has also attached great importance to it. It has been stipulated through the document of Yue Jian Han [1997] No. 345 and Yue Building Materials [1999] No. 019 that cement companies regularly send at least 10 times a year comparative verification samples to provincial stations and compare them. The pass rate cannot be less than 70%. In the year 2000, many cement companies in our province actively sent samples to compare with our station, but also