| Identical components can be distinguished by having a suffix added to their SPREFs. ISODRAFT normally removes suffixes from itemcodes in the material list by recognising the delimiter character which separates the suffix from the rest of the SPREF. | ||
| Specifies     @     symbol. | ||
| Specifies  :  symbol. | ||
| Specifies  +  symbol. | ||
| Specifies  .  symbol. | ||
| Specifies  &  symbol. | ||
| >--- DELImiter ---+--- ATsymbol -------. | | |--- COLONsymbol* ---| | | |--- PLUSsymbol -----| | | |--- DOTsymbol ------| | | ‘--- ANDsymbol ------+---> | ||
