National Fire Protection Association

Which is the appropriate color or hazard according to the following criteria?
4-Deadly

3-Extreme Danger

2-Hazardous

1-Slightly Hazardous

0-Normal Material

• HEALTH HAZARD (BLUE)

• FLAMMABILITY (RED

• REACTIVITY (YELLOW)

• SPECIAL NOTICE KEY (WHITE)

Which is the appropriate color or hazard according to the following criteria?

4-Danger Flammable Gas or Extremely Liquid

3-Flammable Liquid, Flash Point Below 100◦

2-Caution Combustible Liquid, Flash Point 100 to 200◦ 𝐹

1-Caution Combustible if Heated

0-Not Combustible

• HEALTH HAZARD (BLUE)

• REACTIVITY (YELLOW)

• SPECIAL NOTICE KEY (WHITE)

• FLAMMABILITY (RED)

Which is the appropriate color or hazard according to the following criteria?

4-Danger Explosive Material at Room Temperature

3-Danger may be Explosive if Shocked, heated under confinement, or

mixed with water.

2-Warning Unstable or may react violently if mixed with water.

1-Caution may react if heated or mixed with water, but not violently.

0-Stable not reactive when mixed with water

• FLAMMABILITY (RED)

• HEALTH HAZARD (BLUE)

• REACTIVITY (YELLOW)

• SPECIAL NOTICE KEY (WHITE)

Which is the appropriate color or hazard according to the following criteria?

W Water Reactive

OX-Oxidizing Agent

• REACTIVITY (YELLOW)

• FLAMMABILITY (RED)

• HEALTH HAZARD (BLUE)

• SPECIAL NOTICE KEY (WHITE)

Not all chemicals used in the lab are pure; hence, the grading system is used to show the purity of the substance?

• ACS GRADE

• CHEMICAL REAGENTS

• REAGENT GRADE

• USP GRADE

Very high purity meets or exceeds purity standards set by the American Chemical Society?

• REAGENT GRADE

• CHEMICAL REAGENTS

• ACS GRADE

• USP GRADE

Generally equal to ACS grade (> 95%). Batch-specific Certificate of Analysis. Assay printed on the label?

• REAGENT GRADE

• ACS GRADE

• CHEMICAL REAGENTS

• USP GRADE

Very high purity; meets or exceeds purity standards set by United States of Pharmacopeia?

• REAGENT GRADE

• ACS GRADE

• CHEMICAL REAGENTS

• USP GRADE

Meets or exceeds purity standards set by National Formulary?

• REAGENT GRADE

• USP GRADE

• NF GRADE

• ACS GRADE

Relatively high degree of purity, exact levels of impurity unknown. Often meets BP, USP, or FG standards -certification needs to be checked if suitable for use on these applications. Product specifications are generally available?

• NF GRADE

• LABORATORY GRADE

• PURIFIED GRADE

• USP GRADE