This procedure applies to the initial verification, subsequent verification and in-use inspection of rubidium atomic frequency standards (hereinafter referred to as rubidium frequency standards, including rubidium atomic frequency standards controlled by GNSS).
JJG 292-2009 history
2009JJG 292-2009 Verification Regulation of Rubidium Atomic Frequency Standards
1996JJG 292-1996 Verification Regulation of Rubidium Gas Cell Frequency Standards