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Visits were made to Denmark and the Netherlands where meetings were attended of the Working Group on Fire of the Conseil International du Batiment and Working Groups 3, 4, and 5 of ISO/TC 92 on Fire Test Methods. The report summarizes the discussions held and observations made during visits to three laboratories. An important new development in European fire research is the increasing technical concern for problems of accidental fires. Germany has constructed a beam furnace of 2 1/2 x 11 meters size at Braunsweig, while the Danes and Swedes, each, are planning floor-beam furnaces of 4 x 11 meters size. There are plans under way to build a furnace to study steel constructions in an opening of 8 meters high by 4 wide. This furnace is planned for construction at Metz in Alsace. Not only are new and larger test facilities in planning as well as currently available but the technical level of the work is of high calibre. Plans are well in progress to solve problems of unwanted fires by technical understanding rather than empiricism The United States is still asleep so far as Government effort and leadership on building fire studies. SEVENTH MEETING CIB COMMISSION W14 Copenhagen, Denmark lb19 May 1966 The meetings of the Working Group on Fire were held at the Studenterforeningen , H.C. Andersens Blvd. b. We met as a group with delegates from ten different countries as shown in Appendix A. Dr. van Hoogstraten of TNO, Netherlands, was nominated and chosen as chairman. We then divided ourselves into three groups which proceeded to discuss: I. Endurance, II. Spread and Measurement of Smoke, III. Fires in Compartments. I elected to join Group III for the first day. Mr. Heselden was elected Secretary of this group. He led most of the discussion reporting on the progress to date on the international cooperative enclosure fire study. Analysis of the data now available shows that there are no significant biases between laboratories for the radiation and temperature measurements. However, one laboratory, Australia, did show significant bias with respect to burning rate data, both with its own data as well as in comparison with other laboratories. These variations were attributed to changes in box material used. Heselden reported that previous work had shown that the fuel consumption rate kg/min in enclosures could be closely correlated with A/"h in meters 5/2. The slope of the line was found to be 6 and thus in analyzing the data, they have elected, for convenience , to plot burning rate against bAfh or, for normalizat ion purposes , these same coordinates divided by B the box floor area. Mr. Heselden discussed the findings reported in [Ij in some detail. It was suggested the findings implied: 1. The enclosure fires with 1/3 stick spacing seem to correlate well at 1/4 or less window opening, but show significantly lower burn rates for larger windows. Perhaps this is associated with the transition zone we reported in our paper [2]. Similarly, the window radiation level for the cribs with 1/3 spacing was significantly below that for cribs of greater spacing. 2 .

Meetings of ISOTC 92, WG 3, 4, and 5 The Hague, 23-27 June 1966