Safety - Field Sampling: Principles and Practices in Environmental Analysis - page 88

4. Flash point below 23°C (73°F)
3. Flash point below 38°C (100°F)
2. Flash point below 93°C (200°F)
1. Flash point above 93°C (200°F)
0. Does not burn

Fire hazard—Red (#2)

4. May detonate
3. Shock and heat may detonate
2. Violent chemical change
1. Unstable when heated
0. Stable

Reactivity—Yellow (#1)

Oxidizer—OXY
Acid—ACID
Alkali—ALK
Corrosive—CRO
Water reactive—W

Specific hazard

diamond contains special hazard information as needed. Also given is specific
information contained in each diamond. Figure 4.2 shows another HMIS and its

associated safety labeling.
The bottom sign on p. 97 is an example of a shipping label. These are typically seen on
the sides of trucks and the outsides of shipping boxes. In this case the label tells the
handler that the material in the container is an oxidizer. If field samples have some
particular component that would be of concern if the package were dropped or if spilling
the contents would cause a hazardous situation, there should be a label on the box alerting
people handling the box.
Weather emergency plans and signs also need to be taken into consideration. Signs
giving information about weather emergency signals, emergency exits, and routes to safe
locations need to be in place. All workers must be aware of these signs and their
meaning. The location of safe areas must be easy to determine and get to.
There are many other types of safety signs. Some of these are used to show the location
of safety equipment, including safety showers, eyewash stations, safety equipment, and
danger zones. It is advisable to make liberal use of safety signs [2].