International Voluntary Standards Cooperation Act of 1971 : hearings before the Subcommittee on Foreign Commerce and Tourism of the Committee on Commerce, United States Senate, Ninety-second Congress, second session on S. 1257, to authorize an appropriation for fiscal year 1972 to carry out the metric system study : S. 1798, to foster fuller U.S. participation in international trade by the promotion and support of representation of U.S. interests in international voluntary standards activities, and for other purposes, June 18 and July 16, 1971.