
    No. A-951 (79-1763).
    Chlorine Institute, Inc., et al. v. Occupational Safety and Health Administration et al.
   Application for stay of mandate of the United States Court of Appeals for the Fifth Circuit, presented to Mr. Justice Powell, and by him referred to the Court, granted except as to the employers’ obligation to provide respirators to employees exposed to chlorine concentrations in excess of 1 ppm, pending disposition of the petition for writ of certiorari.  