Standard test radio frequency (RF) connectors (grade 0) are intended to measure grade 1 and grade 2 RF connectors for electrical performances. Typically, a standard test radio frequency (RF) connector (grade 0) is an adapter with one end (normally a precision connector interface) which can be connected with measurement equipment and the other end (normally a standard test connector interface) which can be connected with grade 1 or grade 2 connectors.
This specification applies to grade 0 standard test connectors (called connector, hereinafter).