MALB_2014 with 1-21 Revisions

Conducting Measurements of Radon and Radon ANSI/AARST MALB-2014 with 1/21 Revisions Decay Products in Schools and Large Buildings 19 c) Obtain or attempt to obtain a signed statement from the onsite supervisor or other facilitating staff member(s) regarding a commitment to aid in the quality control of closed-building conditions; and d) Conduct visual inspections. Visual inspections to evaluate observed conditions and document deviations from protocol or temporary conditions that might affect the reliability of the test result shall be conducted: 1. Upon detector placement to help ensure all closed-building conditions and other protocol requirements are met, and 2. Upon retrieval of detectors to help verify that closed-building conditions and other protocol requirements are still being maintained. e) Surveillance not required The measurement professional is not required to inspect for closed-building conditions during the 12-hour period before the start of the test or between placement and retrieval of the detectors. 6.1.7 Visual Inspections Where observations suggest reliability of the testing may be compromised, the observations shall be transmitted in a timely manner to person(s) responsible for quality control and recorded in testing records. To that end, the scope of visual inspections required in Section 6.1.6 d shall include requirements a), b), c) and d) of this Section 6.1.7 . a) Testing records shall include any observed deviations from basic closed-building requirements in Section 4.1 ; Tables 4-A , 4-B and 4-C ; and Section 6.1.3 . Testing records shall also include where efforts to influence the outcome of the test are observed, to include tampering with devices or otherwise influencing test conditions. b) Where, in accordance with Section 4.2 , unique sectors of the building have been identified or found to be served by HVAC operation or designs that temporarily vary ventilation, requirements include: 1. Variable outdoor air ventilation Testing records shall include a description of any observed outdoor air intakes that do not appear to be configured to provide the minimum volume of outdoor air ventilation needed at all times of the year when a building or unique sector is significantly occupied . 2. Variable air volume (VAV) Testing records shall include a description of any observed thermostats or controls for variable air distribution (VAV) systems that are not set to a normal occupied temperature in portions of the building served by the system(s). c) Return-air ducts laid In soil Testing records shall include if return-air ducts are observed under slabs or otherwise surrounded by soil where this relates to: 1. Compliance with reporting requirements in Section 8.2.3 b Temporary conditions , or 2. Decisions on whether or not an evaluation of occupied versus unoccupied concentrations, in accordance with Section 5.2, may be warranted.