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Additive Calculation

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Additive Calculation

Summary

This method calculates the amount of additive based on the total volume collected for sample collections.

Formal Expression

The following variable may need to be updated based on specific study design naming conventions -

  • SampleWeight

🔸Additive Amount🔸 should be updated to the desired amount to be calculated based on volume/weight (eg. 0.02)

var repeatKey = itemJson.item.itemGroupRepeatKey; var SampleWeight = findFirstItemByName(formJson, 'Sample Volume', null, repeatKey); var SampleWeightValue = SampleWeight.value; var Additive = SampleWeightValue * 🔸Additive Amount🔸; return Additive.toFixed(4);

*Note also that the number in line five can be modified to adjust the decimal place precision

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