NFPA 490 applies to the storage of ammonium nitrate in the form of crystals, flakes, grains, or prills including fertilizer grade as defined by Definitions and Test Procedures for Ammonium Nitrate Fertilizer, dynamite grade, nitrous oxide grade as defined by Standard for Ammonium Nitrate (Nitrous Oxide Grade), technical grade, and other mixtures containing 60 percent or more by weight of ammonium nitrate.

This Code gives requirements for storage structures, storage in containers and bulk storage, and separation from contaminants. Additionally, this document covers section fire protection and general safety precautions including housekeeping and material handling.

TABLE OF CONTENTS:

NFPA 490 Code for the Storage of Ammonium Nitrate 2002 Edition

Chapter 1 Administration

Chapter 2 Referenced Publications

Chapter 3 Definitions

Chapter 4 General Provisions

Chapter 5 Storage of Ammonium Nitrate in Bags, Drums, or Other Containers

Chapter 6 Storage of Bulk Ammonium Nitrate

Chapter 7 Contaminants

Chapter 8 General Precautions

Chapter 9 Fire Protection

Annex A Explanatory Material

Annex B Properties and Uses of Ammonium Nitrate

Annex C Suggested Fire-Fighting Procedure

Annex D Suggested Provisions for Municipal Legal Regulations

Annex E Informational References

Index