# ISO 171:1980 — Withdrawn and superseded ISO standards

For ISO 171:1980, item title is Plastics — Determination of bulk factor of moulding materials; status code is 9599; successor is ISO 171:2022; withdrawn / published date is 1980-05-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 171:1980 _(verified: appears in the quote below)_
- **Item title:** Plastics — Determination of bulk factor of moulding materials _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 171:2022
- **Withdrawn / published date:** 1980-05-01 _(verified: appears in the quote below)_

## What the source says

> 4005,IS,,ISO 171:1980,Plastics — Determination of bulk factor of moulding materials,Plastiques — Détermination du facteur de contraction des matières à mouler,1980-05-01,1,['83.080.01'],ISO/TC 61/SC 5,9599,,[83907],"['en','fr']",1,"<p>Specifies a method of determining the bulk factor of a moulding material from its apparent density in the unmoulded form and its density in the moulded form. Knowledge of the bulk factor is of importance for the calculation of the minimum cavity volume in the design of moulds. The bulk factor is given by the quotient of the density of the material in the moulded form, determined according ISO 1183 and the apparent density of the material in the unmoulded form,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).