# ISO 8840:1987 — Withdrawn and superseded ISO standards For ISO 8840:1987, item title is Refractory materials — Determination of bulk density of granular materials (grain density); status code is 9599; successor is ISO 8840:2021 | ISO/WD 8840; withdrawn / published date is 1987-09-03, recorded from its source on 2026-08-05. - **Identifier:** ISO 8840:1987 _(verified: appears in the quote below)_ - **Item title:** Refractory materials — Determination of bulk density of granular materials (grain density) _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 8840:2021 | ISO/WD 8840 - **Withdrawn / published date:** 1987-09-03 _(verified: appears in the quote below)_ ## What the source says > 16317,IS,,ISO 8840:1987,Refractory materials — Determination of bulk density of granular materials (grain density),Matériaux réfractaires — Détermination de la masse volumique apparente des matériaux en grains (masse volumique des grains),1987-09-03,1,['81.080'],ISO/TC 33,9599,,"[78298,38366]","['en','fr']",5,"

Two methods for the determination of the bulk density of granular refractory materials (grain density) having a grain size larger than 2mm are specified. Method 1 (mercury method with vacuum) is intended as a referee method. Method 2 is the arrested water absorption method. The two methods may give different results. Any statement of the value of a bilk density shall therefore be ac ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).