10.17. Standard Stocks

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QC standards are described here in generic terms, as it would apply to bulk standard stocks or a batch of standard samples, or simply QC standard 'types' or 'templates'

When actual QC standard samples are added to the system, they are added for Standard suppliers and if the QC sample adhere to one of these Standard Stocks' definition, the record can be created from the stock, inheriting its properties

In some cases, the lab would literally make up its own Standard stock and then dilute parts of it at a regular basis to be used as QC control samples - from there then 'Standard Stocks'

To delete an existing stock, check the box next to it and click [delete]

Click on [add new standard] to add a new stock, or click on an existing one to edit it, the Standard stock details screen will open:

Complete the compulsory Title field and supply a Description if you want to

If the stock has a limited shelf life, provide and Expiry date. Expired stocks will not be available when entering QC samples into the system. Date created can be used to record the date the stock was made up or manufactured

If the stock is of a Hazardous sample type, check the Hazardous check box

Select which analyses the stock can be used a standard for by checking the corresponding boxes. Enter the expected results for the stock and the % error to be tolerated before 'out of range' alerts will be raised to analysts. Corresponding minimum and maximum values will be calculated by the system

Click [Save] to save the information

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