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day the power/equipment failure stress is initiated. Power to the system shall then be turned off at 9:00 p.m. <br /> and dosing shall be discontinued for 48 h.After 48 h, power shall be restored and the system shall be dosed <br /> over a 3-h period with 60%of its daily hydraulic capacity, which shall include 1 wash load (1 wash cycle and <br /> 2 rinse cycles). <br /> 8.2.2.2.4 Vacation stress <br /> On the day that the vacation stress is initiated, the system shall be dosed at 35% of its daily hydraulic <br /> capacity <br /> between 6:00 a.m. and 9:00 a.m. and at 25% between 11:00 a.m. and 2:00 p.m. Dosing shall then be <br /> discontinued for 8 consecutive days (power shall continue to be supplied to the system). Between 5:00 p.m. <br /> and 8:00 p.m. of the ninth day, the system shall be dosed with 60%of its daily hydraulic capacity,which shall <br /> include 3 wash loads (3 wash cycles and 6 rinse cycles). <br /> 8.2.3 Dosing volumes <br /> The 30-d average volume of the wastewater delivered to the system shall be within 100% ± 10% of the <br /> system's rated hydraulic capacity. <br /> NOTE—All dosing days, except those with dosing requirements less than the daily hydraulic capacity, shall be <br /> included in the 30-d average calculation. <br /> 8.2.4 Color, odor, foam, and oily film assessments <br /> During the 6-month testing and evaluation, a total of three effluent samples shall be assessed for color, odor, <br /> foam, and oily film. The assessments shall be conducted on effluent composite samples selected randomly <br /> during the first phase of design loading (weeks 1 — 16), the period of stress loading (weeks 17—23.5), and <br /> the second phase of design loading (weeks 23.5 — 26). <br /> 8.3 Sample collection <br /> 8.3.1 General <br /> 8.3.1.1 A minimum of 96 data days shall be required during system performance testing and evaluation.The <br /> maximum length of the test to obtain the 96 data days shall be no more than 34 wk. No routine service or <br /> maintenance shall be performed on the system whether the time period to achieve the 96 data days falls <br /> within or exceeds 26 wk. <br /> NOTE—In the event that a catastrophic site problem occurs,as described in 8.5.1.2,the maximum length of the <br /> test shall be no more than 37 wk. <br /> 8.3.1.2 All sample collection methods shall be in accordance with Standard Methods unless otherwise <br /> specified. <br /> 8.3.1.3 Influent wastewater samples shall be flow-proportional, 24-h composites obtained during periods of <br /> system dosing. Effluent samples shall be flow-proportional, 24-h composites obtained during periods of <br /> system discharge. Effluent samples shall be representative of all treated effluent discharged from the system, <br /> as sampled from a central point of collection of all treated effluent. <br /> 8.3.2 Design loading <br /> 15/10/055/0030 This report may not be reproduced in whole or in part Page 25 of 59 <br /> Final Report without the expressed written consent of NSF International January 2019 <br />