Handbook on quality control for chemical and biological tests is addressed to lab directors, leaders of field investigations, and others with responsibility for waste and wastewater data.

• Handbook for Analytical Quality Control in Water and Wastewater Laboratories: March 1979 (PDF)(164 pp, 1 MB, March 1979, EPA-600/4-79-019)
  Handbook on quality control for chemical and biological tests is addressed to lab directors, leaders of field investigations, and others with responsibility for waste and wastewater data.