People's Republic standard serial numbers (統一刊號), the equivalent of the People's Republic standard book numbers (統一書號).
#140 CN11-1098
If there is more than one number, if its period of validity is known record it in subfield |v.
#140 CN35-1197|v自139(1998:3)
#140aCN35-1042|v至138(1998:2)