In May,1994, the EAL applied to NATA (National Association of Testing Authorities, Australia), the oldest international accreditation organization for accreditation of 17 items related to air and water analysis. On Jan.31, 1995, the EAL received NATA accreditation of these 17 items. Consequently, the quality of the EAL issued NATA-endorsed test reports is internationally recognized. Up to now, the EAL has extended the scope of accreditation to include air, water, waste and soil analysis. 

The scope of accreditation is as follows：

1. Sampling and testing of particulate matter, and sampling of dioxins and furans in flue gases.
2. Testing of Cd, Cr, Cu, Pb, Ni, Ag, Zn in effluent water, testing of As, Cd, Cr, Cu, Pb, Ni, Ag, Zn, Hg in drinking water, testing of Cd, Cr, Pb, As and Hg in TCLP samples, and testing of Cd, Cr, Cu, Pb, Ni, Zn and Hg in soils.
3. Testing of Chloromethane, Vinyl chloride, 1,1-Dichloroethylene, trans-1,2-Dichloroethylene, 1,1-Dichloroethane, cis-1,2- Dichloroethylene, Chloroform, Carbon tetrachloride, 1,2-Dichloroethane, Benzene, Trichloroethylene, Toluene, Tetrachloroethylene, Chlorobenzene, 1,4-Dichlorobenzene and Naphthalene in waters, and testing of dioxins and furans in flue gases.
4. Sampling of ground water in the monitoring wells.