Report No. 102092693MID-008a Client: Dectra Corporation
Report Revised Date: March 31, 2016
Page 11 of 13
Model: WHS1000
V . SAMPLING METHODS
V.A. PARTICULATE SAMPLING Particulates were sampled in strict accordance with ASTM E2515-11. This method uses two identical sampling systems with Gelman A/E 61631 binder free, 47-mm diameter filters. The dryers used in the sample systems are filled with “Drierite” before each test run.
VI. QUALITY ASSURANCE
VI.A. INSTRUMENT CALIBRATION VI.A. (1). DRY GAS METERS
At the conclusion of each test program the dry gas meters are checked against our standard dry gas meter. Three runs are made on each dry gas meter used during the test program. The average calibration factors obtained are then compared with the six- month calibration factor and, if within 5%, the six-month factor is used to calculate standard volumes. Results of this calibration are contained in Appendix D. An integral part of the post test calibration procedure is a leak check of the pressure side by plugging the system exhaust and pressurizing the system to 10” W.C. The system is judged to be leak free if it retains the pressure for at least 10 minutes. The standard dry gas meter is calibrated every 6 months using a Spirometer designed by the EPA Emissions Measurement Branch. The process involves sampling the train operation for 1 cubic foot of volume. With readings made to .001 ft 3 , the resolution is .1%, giving an accuracy higher than the ±2% required by the standard. VI.A.(2). STACK SAMPLE ROTOMETER The stack sample rotometer is checked by running three tests at each flow rate used during the test program. The flow rate is checked by running the rotometer in series with one of the dry gas meters for 10 minutes with the rotometer at a constant setting. The dry gas meter volume measured is then corrected to standard temperature and pressure conditions. The flow rate determined is then used to calculate actual sampled volumes.
Made with FlippingBook - professional solution for displaying marketing and sales documents online