1. “Plastics Zero in on Clarity, Stability and Cost Goals,” Plastics World, December 1990, p. 42.
2. Federal Register, Vol. 39, No. 92, p. 16896, May 10, 1974; Vinyl Chloride standard; 29CFR 1910-1017.
3. EPA General Provisions for Effluent Guidelines and Standards, 40CFR 401-15.
4. quoted in C&E News, Feb. 25, 1974.