Specifications include, but are not limited to: The testing procedures for radon are the following: 1. Test every classroom on the main floor of the school. 2. Test classrooms in a basement or on all levels of a multi-level school - test for radon on all levels of the school. If there is a second floor – only need to test 10% of classrooms. 3. Test outdoor classrooms at the school. 4. Test kits must be placed on a flat, hard surface. 5. Test kits must be left in the classroom for at least 48 hours and no longer than 96 hours. 6. Test kits must be collected and mailed to the laboratory as quickly as possible because of the time sensitive nature of radon. Radon has a half-life of 3.8 days. 7. The test kits must be put in an excel file format or record on Rapid Scan app for AEL. To confirm Validity and Reliability of Test kits – 1. When testing the school researchers will use a Duplicate test, placing two short-term test kits side-byside. The test results must come back within +/– .25% pCi/L of each other. The Contractor agrees that the results from the Short-Term charcoal test kits will follow the standard accuracy set by NRPP which requires a radon lab to be +/- 25% accuracy. 2. When testing the school, researchers will use a blank. To give you a background on what this is: the researcher will open a test kit and put it directly back in the insulated envelope to be returned to the lab. The results for this radon test kit will need to come back as negligible results. a. The Contractor (Alpha Energy Laboratories will follow the below methodology for duplicates. Tests where the average results is < 4.0 pCi/L - the IRE% should be no higher than 67% Tests where the average result is >= 4.0 pCi/L - the IRE% should be no higher than 37%. The IRE% is calculated as: (Test Result 1 + Test Result 2) / 2 = Average Test Result 1 - Test Result 2 = Difference IRE% = Difference / Average 3. The Contractor agrees that the Results from the Short-Term charcoal test kits will follow the standard accuracy set by NRPP which requires a radon lab to be +/- 25% accuracy. 4. The Contractor will follow the below guidelines set by NRPP. Materials needed to perform radon testing in schools: Short-term charcoal activated radon test kits a. Test kits must not expire. b. Radon test kits must be easy to place inside school classrooms without additional help from school or staff members. c. Test results must be determined by a current NEHA-NRPP certified Laboratory. d. Test results must be reported in Excel format e. Test kits have a minimum of 15 grams of charcoal so that they can be compared with other activated charcoal test kits per IRB Research Instructions.