# Adding [drp] (drop) to UCUM units

**Category:** [Archetype Designer](https://discourse.openehr.org/c/archetype-designer/30)
**Created:** 2024-08-21 01:37 UTC
**Views:** 123
**Replies:** 11
**URL:** https://discourse.openehr.org/t/adding-drp-drop-to-ucum-units/5590

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## Post #1 by @bradlittleton

Hi all, we'd like to be able to choose "drops" as a unit within Archetype Designer (and other tooling).  It is a valid UCUM unit, so I've raised a [PR with it added to PropertyUnitData.xml](https://github.com/openEHR/specifications-TERM/pull/16).  Is that correct approach, and is there anything else I need to do?

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## Post #2 by @ian.mcnicoll

@siljelb . I guess this is a reasonable request?

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## Post #3 by @siljelb

Certainly, although I'm a bit unsure about the maths. I've submitted a change request to the PR.

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## Post #4 by @bradlittleton

Thanks @siljelb and @ian.mcnicoll , I've added a comment to the change request

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## Post #5 by @bradlittleton

Hi @siljelb , is there anything else we need to do get the change merged, or will it get picked up as part of a release cycle?

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## Post #6 by @siljelb

@sebastian.iancu, maybe you know how to get this progressed? :smile:

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## Post #7 by @sebastian.iancu

It is now merged and published in the development version - will be part of upcoming v3.1.0

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## Post #8 by @siljelb

Thanks @sebastian.iancu!

@borut.fabjan, could you update AD with this updated units file? 😊

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## Post #9 by @linforest

Hi, @sebastian.iancu.  Thank you so much for your merging the [translation (zh)](https://github.com/openEHR/specifications-TERM/tree/master/computable/XML/zh) branch.

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## Post #10 by @borut.fabjan

@siljelb , @sebastian.iancu 

is this the version you want AD to update to? 
 
![Screenshot 2024-10-01 at 12.16.38|690x135](upload://a6zd8RXvbXO6jyfjjgOVr07ZXV6.png)

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## Post #11 by @siljelb

@borut.fabjan it's the version in the current master: [specifications-TERM/computable/XML/PropertyUnitData.xml at master · openEHR/specifications-TERM (github.com)](https://github.com/openEHR/specifications-TERM/blob/master/computable/XML/PropertyUnitData.xml)

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## Post #12 by @borut.fabjan


Added. ;)

![Screenshot 2024-10-04 at 15.28.47|674x500](upload://k1z0l41Mybuvy7Ma62qWRcuJVav.png)

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**Canonical:** https://discourse.openehr.org/t/adding-drp-drop-to-ucum-units/5590
**Original content:** https://discourse.openehr.org/t/adding-drp-drop-to-ucum-units/5590