Answer:
a. have an accurate and safe operation of the equipment.
Step-by-step explanation:
The main reason for this is to have an accurate and safe operation of th equipment. Most devices are made differently and the manufacturers' job is to make sure that the equipment works as intended and is safe for the user. The cannot control how the user uses the equipment and therefore, create the specifications so that the user will read them and understand how to properly operate the equipment so that neither the user nor the equipment gets damaged.