Common use of Field Monitoring Clause in Contracts

Field Monitoring. (i) The power supply was checked to ensure the HVS works properly. (ii) The filter holder and the area surrounding the filter were cleaned. (iii) The filter holder was removed by loosening the four bolts and a new filter, with stamped number upward, on a supporting screen was aligned carefully. (iv) The filter was properly aligned on the screen so that the gasket formed an airtight seal on the outer edges of the filter. (v) The swing bolts were fastened to hold the filter holder down to the frame. The pressure applied was sufficient to avoid air leakage at the edges. (vi) Then the shelter lid was closed and was secured with the aluminum strip. (vii) The HVS was warmed-up for about 5 minutes to establish run-temperature conditions. (viii) A new flow rate record sheet was set into the flow recorder. (ix) On site temperature and atmospheric pressure readings were taken and the flow rate of the HVS was checked and adjusted at around 1.1 m3/min, and complied with the range specified in the updated EM&A Manual (i.e. 0.6-1.7 m3/min). (x) The programmable digital timer was set for a sampling period of 24 hrs, and the starting time, weather condition and the filter number were recorded. (xi) The initial elapsed time was recorded. (xii) At the end of sampling, on site temperature and atmospheric pressure readings were taken and the final flow rate of the HVS was checked and recorded. (xiii) The final elapsed time was recorded. (xiv) The sampled filter was removed carefully and folded in half length so that only surfaces with collected particulate matter were in contact. (xv) It was then placed in a clean plastic envelope and sealed. (xvi) All monitoring information was recorded on a standard data sheet. (xvii) Filters were then sent to ALS Technichem (HK) Pty Ltd. for analysis.