Definitions
Specification (spec.):
Warranted performance. All specifications apply at 23 ºC (± 5 ºC), unless otherwise stated, and 90 minutes after the instrument has been turned on.
Specifications include guard bands to account for the expected statistical performance distribution, measurement uncertainties, and changes in performance due to environmental conditions.
Supplemental information is intended to provide information that is helpful for using the instrument but that is not guaranteed by the product warranty.

Typical (typ.):
Describes performance that will be met by a minimum of 80% of all products. It is not guaranteed by the product warranty.

Supplemental performance data (SPD):
Supplemental performance data represents the value of a parameter that is most likely to occur; the expected mean or average. It is not guaranteed by the product warranty.

General characteristics:
A general, descriptive term that does not imply a level of performance.