User Guide to Thresholds and Classification - Environmental ...

27User Guide for Thresholds and ClassificationsCategory EArticles containing a secondary detonating explosive substance, without means of initiation, but with apropelling charge (other than one containing a flammable liquid or gel or hypergolic liquids that ignitespontaneously on contact with an oxidant).Category FArticles containing a secondary detonating explosive substance with its own means of initiation (being anarticle containing a primary explosive substance designed to initiate the secondary explosive substance),without a propelling charge or with a propelling charge other than one containing a flammable liquid or gel orhypergolic liquids.Category GPyrotechnic substances, or articles containing a pyrotechnic substance, or articles containing both anexplosive substance and an illuminating, incendiary, tear- or smoke-producing substance (other than awater-activated article or an article containing white phosphorus, phosphides, a pyrophoric substance, aflammable liquid or gel, or hypergolic liquids).Category HArticles containing both an explosive substance and white phosphorus (for smoke generation but representsa fire hazard from spontaneous ignition on contact with air).Category JArticles containing both an explosive substance and a flammable liquid or gel.Category KArticles containing both an explosive substance and an acutely toxic substance with a HSNO Act hazardclassification of 6.1A, 6.1B, or 6.1C (oral LD50 of less than 300 mg/kg bodyweight).Category LA mixture or an article that contains both an explosive substance and a substance that spontaneouslycombusts, detonates, or deflagrates when exposed to air, water, oxidising substances, or flammablesubstances, or generates a substance that spontaneously combusts, detonates, or deflagrates whenexposed to air or water. These substances can present special risks and need isolation of each type withincategory L.Category NArticles containing only extremely insensitive detonating substances, where ‗extremely insensitive‘ is asdefined in the criteria for subclass 1.6.January 2012 EPA0109