Policies,Administrative,UWMF,UWMF-wide,Safety,Hazardous Material & Waste - Materials (HAZMAT)

Labeling of Chemicals (118.005)

Labeling of Chemicals (118.005) - Policies, Administrative, UWMF, UWMF-wide, Safety, Hazardous Material & Waste - Materials (HAZMAT)



Subject: Labeling of Chemicals
Effective Date: 1/05 Approved: Mike Holman, Safety Mgr
Supersedes Policy Date: Revision #
Distribution: Uconnect


Primary containers mean original containers shipped by a distributor or
manufacturer. In nearly all cases, primary containers are appropriately labeled.

Secondary containers can be any container used to temporarily store or
transfer chemical products from a primary container (i.e. glutaraldehyde soak
bins, pharmaceuticals).

All chemical containers must be appropriately labeled in accordance with OSHA’s
Hazard Communication Standard 29 CFR 1910.1200.

1. The site supervisor will ensure that all PRIMARY and SECONDARY
containers holding hazardous chemicals in their facility are appropriately
labeled in accordance with Attachment A or at least the following:

a) Identity of the product
b) Health hazard information that specifies the organs that may be
affected by the exposure
c) Manufacturer’s name and address

Attachment A

Potassium Hydroxide 10% Solution

Flash point means the temperature in degrees Fahrenheit at which a liquid will give off
enough flammable vapor to ignite.

Oxidizer means a chemical, other than a blasting agent, or an explosive which contains
oxygen and may start or assist combustion of other materials.

Alkali means a compound which has the ability to neutralize an acid and form a salt.
Alkalis act as corrosives unless highly diluted.

NFPA 704 Color Diamond Reference
BLUE (Health Hazard)
4 = deadly
3 = Extreme Danger
2 = Hazardous
1 = Slightly Hazardous
0 = Normal Material
RED (Flammability)
Flash Points
4 is below 70 F
3 is below 100 F
2 is below 200 F
1 is above 200 F
0 means will not burn

YELLOW (Reactivity)
4 = may detonate
3 = shock/heat may detonate
2 = violent chemical change
1 = unstable if heated
0 = stable
WHITE (Specific Hazard)
Oxidizer = OX
Acid = ACID
Alkali = ALK
Corrosive = COR
Use no water = ++
Radiation Hazard =

One question people often have is concerning the NFPA 704 diamond marker. The
marker is simple, with 4 color-coded regions that designate these various hazard
 Blue: Health hazard (0-4)
 Red: Flammability hazard (0-4)
 Yellow: Instability hazard (0-4)
 White: Special (-W- or OX)
From the NFPA website:
"The system is characterized by the "diamond shape" that is actually a "square-on-
point" shape. It identifies the hazards of a material and the degree of severity of the
health, flammability, and instability hazards. Hazard severity is indicated by a
numerical rating that ranges from zero (0) indicating a minimal hazard, to four (4)
indicating a severe hazard. The hazards are arranged spatially as follows: health at
nine o'clock position, flammability at twelve o'clock position, and instability at three
o'clock position. In addition to the spatial orientation that can be used to distinguish
the hazards, they are also color-coded as follows: blue for health, red for
flammability, and yellow for instability.
"The six o'clock position on the symbol represents special hazards and has a white
background. The special hazards in use are W, which indicates unusual reactivity with
water and is a caution about the use of water in either fire fighting or spill control
response, and OX, which indicates that the material is an oxidizer."
Source: NFPA website on diamond symbol display