"Proficiency Evaluation Program (PEP)"is a very important program for managing the environmental analysis laboratory of the National Institute of Environment Analysis (NIEA) in ROC. This year’s project involved five tasks: 1.Continuing third years stability of testing of Suspended Solids, Total Dissolved Solids, pH and Color PE samples. 2.Preparing PE samples for TCLP PEP testing, including Cadmium, Chromium, Copper, Lead, Mercury, Nickel, Selenium and Arsenic (eight elements), with two batches of samples being tested and at least 60 bottles being prepared for each batch. 3.Preparing PE samples for water PEP testing, including [testing for : Hardness, Chloride, Fluoride, Sulfate, Conductivity, Cyanide and Sulfide in water. At least 13 batches, and 710 bottles of PE samples were prepared. 4.Preparing PE samples in soil for PEP testing, including Cadmium, Chromium, Copper, Nickel, Lead, Arsenic, Mercury, Zinc (eight elements), with two batches of samples being tested and at least 200 bottles being prepared for each batch. 5.Transferring the established PE sample preparation technique to NIEA, with a total of six items being included in the first stage transference, including]: Chloride, Fluoride, Sulfate, Conductivity, Cyanide and Sulfide. 6.Offering technical assistance in measuring concentrations for 28 PE sample items, including: Suspended Solids, Total Dissolved Solids, pH, Oil & Grease, COD, BOD, Ammonia Nitrogen, Nitrate, Nitrite, Total Phosphorous, Phenol, Arsenic, Boron, Cadmium, Chromium, Copper, Iron, Lead, Manganese, Mercury, Nickel, Silver, Selenium, Zinc, Turbidity, ABS, Hexa-valent Chromium, and Color.

Performance Evaluation Test(PET),Performance Evaluation Sample,PE Sample