自净时间测试.docxVIP

Recovery Time自净时间Purpose目的Verify that the roomcleanliness recovery time in how long, can reach the requirements.确认房间洁净度自净时间在多长时间内，能够达到规定的要求。Procedure程序Lay the particle counter in the assignation position;在给定位置上放置颗粒计数器；According to the outlet arrangement of the room, set the measurement point in the theory of self-purification longest area;根据房间风口布置情况，在理论自净时间最长的区域设置测量点。The number of measurement points depends on the volume of the room to validate;测量点的数量按照房间的体积来确定；Volume of the room (m3)房间的容积(m3)Number of measurement points测量点的数量V 75175 ≤ V 1502150≤ V 2253V≥ 2254Inpour into the particle in the room in use of the smoke generator;在使用发烟器的情况下，在房间内注入颗粒；Open the smoke generator;开启发烟器；Inpour into the smog in the room, the smog may not inpour into the place too approaches the sounding set;往房间注入烟雾；烟雾不可以注入得过于接近探测仪；Diffuse the smog by the movement of the hand;以手掌运动扩散烟雾；Start the particle calculating (turn on the particle counter at one time);开始颗粒计算（同时打开颗粒计数器）；Frequency：Record it each minute;频率：每分钟记录一次；The size of the particle≥0.5μm;颗粒大小≥0.5μm；Record the concentration of initial particles (C0);记录初始颗粒浓度(C0)；Record of particle concentration in a minute (C1);记录一分钟后的颗粒浓度(C1)；Use the following formula to calculate cleanliness recovery rate;使用下列公式计算洁净度恢复率；n-- cleanliness recovery rate;n--洁净度恢复率；t1--Two measuring time interval;t1--第一次和第二次测量的间隔时间；C0--Concentration of initial particles;C0--最初浓度；C1--Concentration of the time after the t1;C1--时间t1后的浓度；C1=C0exp(-nt1)The test cycle test five times, take the average recovery rate;一个测试点循环测试5次，取恢复率平均值； n=(n1+n2+n3……)/xThe recovery rate of cleanliness and 100:1 recovery time relationship is as follows;洁净度恢复率值与100：1自净时间两者关系如下：According to the recovery rate of cleanliness value calculated 100:1 recovery time.根据洁净度恢复率值计算得出100：1自净时间。Acceptance Criteria可接受标准The actual recovery time of each sample point of each room is not more than its standard recovery time (15min).所有房间内取样点的自净时间不大于标准自净时间15分钟。The primitive printing report is attached