数量iii, 148 p. incl. tables, diagr. 20 cm.
一般注記At head of title: United States Dept. of commerce. Jesse H. Jones, secretary. National bureau of standards. Lyman J. Briggs, director.
"Supersedes Handbook H22 of the National bureau of standards, published in 1938, and presents the specifications, tolerances, and regulations adopted by the National conference on weights and measures through the thirty-first conference held in 1941."