The sub-committee consisted of six engineers, two plumbers and one plumbing wholesaler.7 They held conferences with John Gries, chief of the division of building and housing; Ira Woolson, chairman of the Building Code Committee; Frank Cartwright, technical secretary of the Building Code Committee; Dr. L.J. Briggs, chief of the engineering physics division and assistant director in charge of tests; and Roy B. Hunter, physicist of the bureau to whom was delegated the task of conducting the experimental work (BH13 2-3).
This investigative work took place at the laboratories of the Bureau of Standards in Washington D.C. from November 1921 to January 1923 under the oversight of Dr. Hunter (BH13 47).
A preliminary report was submitted to the chairman of the Building Code Committee on June 17, 1922.
9 Dr. Hunter
, with assistant L.W. Snyder, published a report attached to the BH13 report on The Physics of Plumbing Systems.