Mercury-202 spike as CH3HgCl
This certificate is valid until 01.07.2007. This validity may be extended as further evidence of stability becomes available.
The spike isotopic reference material ERM®-AE670 is supplied with a certified amount content of CH3202Hg and certified isotopic compositon of Hg present as CH3Hg.
 G. Audi and A.H. Wapstra, The 1993 atomic mass evaluation, Nucl Phys A565 (1993) 1-65.