Myanmar Tests Resolve of I.L.O. on Enforcing Standards
International Labor Organization says no nations have responded with concrete action to its call for sanctions against Myanmar because of military government's practice of forcing villagers to do unpaid construction work; European Union, United States and other nations had said they would impose sanctions, but are barred by World Trade Organization rules from acting against fellow WTO member; effort to isolate and punish Myanmar is losing ground; Myanmar's trade with United States and European Union has soared recently (M)