# ISO 2647:1973 — Withdrawn and superseded ISO standards

For ISO 2647:1973, item title is Wool — Determination of percentage of medullated fibres by the projection microscope; status code is 9599; successor is ISO 2647:2020; withdrawn / published date is 1973-04-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 2647:1973 _(verified: appears in the quote below)_
- **Item title:** Wool — Determination of percentage of medullated fibres by the projection microscope _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 2647:2020
- **Withdrawn / published date:** 1973-04-01 _(verified: appears in the quote below)_

## What the source says

> 7632,IS,,ISO 2647:1973,Wool — Determination of percentage of medullated fibres by the projection microscope,"Laine — Détermination du pourcentage de fibres médullées, au moyen du microscope à projection",1973-04-01,1,['59.060.10'],ISO/TC 38/SC 23,9599,,[76603],"['en','fr']",2,"<p>The method is applicable to woolen and worsted products, at all stages, from raw materials to yarn. It utilizes the same apparatus and technique as that described in ISO/R 137. Since the method of preparation and measurements gives a length-biased sample, the result given by this method is an estimate of the length of medullated fibres as a percentage of the total length of all fibres. It cannot be used to estimate

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).