Chemical Grade Designations

Meets or exceeds the specifications as listed in Reagent Chemicals published by the American Chemical Society.

High purity chemicals suitable for use in many analytical and general laboratory applications.

Meets or exceeds the requirements of the U.S. Pharmacopeia.

Meets or exceeds the requirements of the National Formulary.

High purity products packaged in a cleanroom environment to control particulates.

Relatively high quality but may contain small amounts of impurities and can be used in most cases for educational applications.

Designates chemicals of good quality where there are no official standards.

Designates chemicals of selected commercial or industrial quality.

HMIS Information

The Hazardous Material Information System (HMIS) is a labeling system developed by the National Paint and Coatings Association (NPCA). The blue, red, and yellow colored bars indicate, respectively, the health, flammability, and reactivity hazard associated with the material. These three bars use a numbering scale ranging from 0 to 4. A value of zero means that the material poses essentially no hazard; a rating of four indicates extreme danger. The Protective Equipment bar contains a letter rating, corresponding to the protective equipment required for handling the material.