能力验证是评价实验室分析结果可靠性的一种途径。陕西省产品质量监督检验研究院参加了中国建材检验认证集团股份有限公司组织的合成树脂乳液涂料对比率测定的能力验证(编号CTC PT-2019-10),|Z|<2,说明分析结果可靠。结合能力验证结果,分析对比率测定过程的注意事项,并从产品配方角度分析对比率不合格的原因。

Capability verification is a way to evaluate the reliability of laboratory analysis results. Shaanxi Institute for Product Quality Supervision and Inspection participated in the capability verification(No. CTC PT-2019-10) of contrast ratio determination of synthetic resin emulsion coatings organized by China Building Materials Inspection and Certification Group Limited Corporation. The absolute value of |Z | is less than two indicating that the analysis results are reliable. Combined with the results of capability verification, the matters needing attention in the determination of contrast ratio were analyzed. And the reasons for unqualified contrast ratio were analyzed from the perspective of product formula.