Conclusion
Take the credit of the balance uncertainty calibration

Quality assurance standards do not have clear requirements for measuring instruments, and do not differentiate between calibration and verification, leaving the user in doubt. During audits or inspections, no questions are raised on this particular point.

Although aware of the phenomenon, the user does not apply air buoyancy correction without being aware that it could jeopardize the quality of his analyses or the quality of his products. During audits or inspections, no questions are raised on this particular point. The examples in the 4.3