EVERY STATION EVERY STATION . EVERY STATION LARGE VOLUME STATIONS 
ALL DEPTHS BOTTOM CAST,10 DEPTHS 6 DEPTHS TO 400M 18 DEPTHS 
Surface 280L 
Pp ie) Gerard 
ump 
| | f 
ol ' Suck through 37 mm Pump through 142 mm Pump through 142 mm 
2 ie . Nuclepore filter into preignited glass filter. Nuclepore filter 
. ie 1s evacuated Rn bottle. As much water as into Ra@26 and Sr9° 
penny Nd possible but not less drums 100 - 170 L. 
than 500 L. 
Filter under N 
pressure through 
preweighed 37 mm 
Nuclepore. 
Wash filter 7 times 
with distilled, deion — 
ized water 
~<—10L Library 
Sample. 
Wash filter 7 times 
with distilled, deion- 
ized water. 
Particulates 
Sample I 
Particulates Particulates Particulates 
Sample I Sample II Sample IZ 
| Store in individual 
boxes 
Store in individual Fold filter, put in Fold filter, put in 
boxes. poly bag. poly bag. 
Store in freezer. Store in freezer. 
Figure 2 
Flow Sheet: Particulates 
10 
