The design and deflagration Pressure relief vents is based on correlat
ions developed for various types of combustible materials and for-encl
osures of different strengths. The primary guideline for deflagration
vent design in the US is NFPA 68 Guide for Venting of Deflagrations [5
]. That document gives guidance for the design of vents for enclosures
containing flammable gases specifically, hydrogen, coke oven gas prop
ane, and methane. Application of the guide to other gases is achieved
using the K-G value. Values of K-G are published for a relatively smal
l number of gases as seen in Table D-1 of NFPA 68. This work presents
K-G data on several additional gases obtained in a laboratory scale te
st vessel along with analysis of the results with respect to Published
values of fundamental burning velocity.