As the inspectors transferred from the flask to the process of injection vials, no volumetric flask check the lot numbers result in injection vial identify errors. This is a man-made causes.
As the inspector transferred from the capacity bottle to the sample vial, the batch number of the capacity bottle was not checked, resulting in an error in the identification of the sample vial. This is for man-made reasons.
In the process of transferring from the volumetric flask to the vial, the inspector did not check the batch number of the volumetric flask, resulting in the wrong identification of the vial. This is for human reasons.