This paper presents the main aspects of implementing a laboratory for testing qualification and approval related to crystalline silicon terrestrial photovoltaic devices. In this aspect, simplified review-based IEC 61215 standard methodology mechanical electrical tests is presented from practical-experimental view. The instrumental requirements uncertainties are discussed. Specially focused on n...

The effect of 10 and 25 kGy ?-irradiation on penicillin G plus procaine and sodium ampicillin has been assessed by different chemical and microbiological analytical methods. According to the chemical results obtained, the antibiotics showed a slight reduction in doses applied but the microbiological assays revealed that the activity of irradiated antibiotics did not reduce. Microbiological stud...