Screening Thresholds for Research Proposal
(ECG-1 Form)

toxic gas

Hazardous Materials Quantities

Material and Class Solids Liquids Gas
Explosives 1 lb 1 lb NA
Flammable Gas (Gaseous) NA NA 1000 cf
Flammable Gas (Liquefied) NA 30 gal NA
Pyrophoric 4 lbs 4 lbs 50 cf
Class 4, Unstable (Reactive) 1 lbs 1 lbs 10 cf
Class 3, Unstable (Reactive) 5 lbs 5 lbs 50 cf
Class 3, Water Reactive 5 lbs 5 lbs NA
Highly Toxics 10 lbs 10 lbs 20 cf
Toxics 500 lbs 500 lbs 810 cf

This table lists hazardous material quantities that may indicate the need for an “H” (hazardous) occupancy space, or other specialized space, that may not be readily available or even possible in UW research facilities.  The table is associated with the ECG-1 form for screening research proposals.