| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 5.20 | 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 |
| 5.148 | ICPES |
1998 | Personal communication,M.Watanabe,MKK,Tokyo, Japan | | | | M.Watanabe |
| 4.59 | ICPES |
1998 | Personal communication,SKK,Japan | | | | |
| 5.00 | NAA |
1998 | Personal communication,Lucas Heights Science and Technology center ,Australia | | | | H.Waldron |
| 5.23 | XRF |
1998 | Personal Communication,New Mexico institute of Mining & Technology | | | | Chris McKee |
| 5.11 | XRF |
1999 | Personal Communication,Departement DRO/GM France | | | | J.Etoubleau |
| 5.20 | XRF |
1999 | Personal communication,Institute of Geology Estonia,ESTONIA | | | | T.Kiipli |
| 5.52 | XRF |
1994 | Personal Communication,WSU GeoAnalytical Laboratory, USA | | | | C. Knaack, S. Cornelius and P. Hooper |
| 5.52 | XRF |
2000 | Personarl Communication,Washington State University | | | | D. Johnson |
| 4 | OES |
1999 | Personarl Communication, Institute of Geology, Estonia | | | | T. Kiipli |
| 5.21 | EXRF |
2002 | Personal Communication, Southern Connecticut State Univ., USA | | | | T. Fleming |