廃水分析値のユーザー定義単位(mg/L)について

Using Google Translate from Japanese to English:

Regarding user-defined units (mg/L) for wastewater analysis values

I am currently trying to create a user-defined unit (mg/L) for wastewater analysis values ​​such as BOD and COD

I understand that the reference system-defined unit should be g/L and multiplied by a coefficient of 0.001

On the other hand, g/L belongs to the Density class, but the mg/L of BOD and COD in this case has a different meaning from Density

How should I set it in this case? Please let me know

*The mg/L used in BOD and COD indicates the amount of oxygen required per liter for microorganisms in the water to decompose organic matter

ご質問の件，正解かどうか分からないですが，私が設計者であれば，DensityにBODやCOM用のmg/Lを登録すると思います

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Asset Frameworkでは，[重さ]/[容量]を[密度]という単位クラスに分類しているため，mg/Lも[密度]として扱っている　と私は解釈しています

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もし，BODやCODをmg/Lに替わる単位[例:O mg/LやO2 mg/L]で実装する場合は，新しい単位クラス[例:要求量]を登録して，単位クラス[例:要求量]に必要な単位[O mg/L O g/L]を登録することが可能です

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Asset Frameworkがデフォルトで登録している単位[g/L]を削除すれば，新しい単位クラス[例:要求量]に[g/L]を作成できると思いますが，バージョンアップの際に不具合を起こす可能性を考慮して，デフォルトの削除は避けた方がいいと思います

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I don't have the correct answer,but I will set "mg/L" as UOM Class:Density.

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My understanding is that "mg/L" can be categorised as "Density" in AssetFramework because definition of "Density" is "Weight" / "Volume".

If you can implement another UOM like "O mg/L" or "O2 mg/L", you can assign them under new UOM class like "Demand".

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If we delete the original UOM "g/L" , we can implement "g/L" under new UOM class like "Demand",but I recommend that the orinal UOMs should NOT be deleted in order to occur any troubles in upgrade AssetFramework.

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