Standard Character -Applications

Hi ALL,

Does anyone know what the below standar charcters do?what or where are its application.I csnt find any documentation on this .Thanks

LOBM_APO_SL_MAX Max shelf life/shlf lfe in sec

LOBM_APO_SL_MIN Min shelf life/maturity in sec

LOBM_RLZ_PROZ Req. remaining rntme in proc.

Naik