translate English to French: U.S. EPA, "Procedures for NBS-Traceable Certification of Compressed Gas Working Standards Used for Calibration and Audit of Continuous Source Emission Monitors" (revised Traceability Protocol No. 1), EPA- 600/7-81-010, Quality Assurance Division (MD-77), Research Triangle Park, NC, 1981.
EPA, Procedures for NBS-Traceable Certification of Compressed Gas Working Standards Used for Calibration and Audit of Continuous Source Emission Monitors (Traceability Protocol No. 1, révisé), EPA-600/7-81-010, Quality Assurance Division (MD-77), Research Triangle Park, NC, 1981.