# ISO/TR 7871:1997 — Withdrawn and superseded ISO standards For ISO/TR 7871:1997, item title is Cumulative sum charts — Guidance on quality control and data analysis using CUSUM techniques; status code is 9599; successor is ISO 7870-4:2011; withdrawn / published date is 1997-02-27, recorded from its source on 2026-08-05. - **Identifier:** ISO/TR 7871:1997 _(verified: appears in the quote below)_ - **Item title:** Cumulative sum charts — Guidance on quality control and data analysis using CUSUM techniques _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 7870-4:2011 - **Withdrawn / published date:** 1997-02-27 _(verified: appears in the quote below)_ ## What the source says > 14804,TR,,ISO/TR 7871:1997,Cumulative sum charts — Guidance on quality control and data analysis using CUSUM techniques,Cartes des sommes cumulées — Lignes directrices pour le contrôle de la qualité et l'analyse des données utilisant les procédures CUSUM,1997-02-27,1,['03.120.30'],ISO/TC 69/SC 4,9599,,[40176],"['en','fr']",40,
Gives the principles of cusum charting and includes guidance on the preparation and interpretation of cusum charts using basic decision rules.
## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).