This guiding technical document proposes the principle of cumulative sum diagrams, including guidance on drawing and interpreting diagrams. This guiding technical document is applicable to the quality control of the continuous production process when the quality index of the inspected product is the number of unqualified products, the number of unqualified products, or the average value of a certain quality characteristic.
2006GB/Z 4887-2006 Cumulative Sum charts. Guidance on quality control and data analysis using CUSUM techniques
1985GB/T 4887-1985 Cusum charts for counted/attributes data
GB/Z 4887-2006 Cumulative Sum charts. Guidance on quality control and data analysis using CUSUM techniques has been changed from GB/T 4887-1985 Cusum charts for counted/attributes data.
GB/Z 4887-2006 Cumulative Sum charts. Guidance on quality control and data analysis using CUSUM techniques was changed to GB/T 17989.4-2020 Control charts—Part 4: Cumulative sum charts.