Sample Transport and Storage - Field Sampling: Principles and Practices in Environmental Analysis - page 215

8.15. REQUEST FOR ANALYSIS

It is essential that samples leaving the field office for the analytical laboratory be
accompanied by a request for analysis (RFA) form, which will be different for different
laboratories. Both the COC and the RFA forms should have a contact person clearly and
easily identified on them. The

FIGURE 8.4 Some examples of computer storage media. From left to right:
CD, zip disk, and 3.5 floppy disk.

TABLE 8.3 Computer Storage Devices

Device Type of media Condition of stored data

Floppy drive Floppy disk Data easily stored and transported. Limited storage capacity.

Data can be erased or otherwise lost.

Zip drive Zip disk Data are easily stored and transported. Will hold more data

than floppy disk. Data can be erased or otherwise lost.

Memory stick
and card

Memory chip Data easily stored and transported. Holds about same amount

of data as zip drive, but is much smaller and more
transportable.

Hard drive Nonremovable

hard disk

Holds large amount of data. Usually an integral part of a
computer. Not easy to transport. Data can be erased or
otherwise lost.

CD burner CD-R Holds large amount of data. Burner is usually integral part of

computer. Data cannot be erased.

CD burner CD-RW Same as above, but CD can be rewritten on, thus loss of data

is possible.