| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 0.20 | AA |
1998 | Preparation of two new GSJ geochemical reference materials; basalt JB-1b and coal fly ash JCFA-1. | Geostandards Newsletter | 22 | 113-117 | S.Terashima, M.Taniguchi, M.Mikoshiba and N.Imai |
| <0.2 | AA |
1998 | Personal communication,SKK,Japan | | | | |
| 0.2 | AA |
1998 | Personal communication,SKK,Japan | | | | |
| 0.20 | HAA |
1998 | Personal communication,GSJ,Japan | | | | S.Terashima |
| <2 | EXRF |
2002 | Personal Communication, Southern Connecticut State Univ., USA | | | | T. Fleming |