Nominal dimension
This refers to dimensions different than the actual dimensions of a product or the values shown on design diagrams. They are values that are easy to estimate and usually rounded off.
Standard value
Refers to standard values for inspection, adjustment, assembly, and installation.
Limit
Refers to maximum or minimum values that should not be exceeded during maintenance.
Parts exceeding these values must be repaired or replaced.
Warning
Refers to a precaution which may lead to injury if not observed.
Caution
Refers to a precaution which may lead to equipment damage if not observed.
Note
Refers to special notes that give instruction, guidance, or use conditions related to use, operation, repair, etc.