Sample Transport and Storage - Field Sampling: Principles and Practices in Environmental Analysis - page 213

FIGURE 8.3 A suggested chain of custody form for field samples.
affect a sample's integrity, and needs to be included with the COC. Software specifically
designed for COCs is available [5, 6].
An additional advantage is that computers can be accessed from remote locations if
they are connected to the Internet. They can also distribute or receive information from
several locations simultaneously. This means that the original COC can be accessed from
either the field in which the sampling is occurring or from the analytical laboratory in
which the analysis is occurring. It also means that at any time during transport changes in
the COC can be transmitted to both the field and to the analytical laboratory.
With computers there is always the danger of data loss. Acquiring and using an