REECo 29
PROPOSED SOIL PREPARATION BY BALL MILLIN
1
cord, tared cans (24
hours)
and place
in drying oven.
_
to empty cared
cans, work in-4
"side a larger
[pag..
and con| °
lr] tents “| “record
‘weights.
:
Weigh, and re-
Transfer soil
J} Weish bag
“Le
at
add 10 balls/
can, fasten
lids,
Sieve on
in ball mill.
3500 wu
3 bours
Collect fines in
tared cans; put
coarse ina
®
tared Nalzene
Fine
puc coarse in
|fresn can and.
L hour f fresh can and
ball mill’again,
Step ll
Step LO
bottle - weizh
Sieve on 500 u
sereen; coilece
tines and save;
sereens_collect
fines and saye;
install
clips, place
Remove dricd
sample cans weigh and
record
weights.
Stes 9
Won
Step 8
Step 7
Steps 5,6
Steps 2,3,4
Step 1
|
ball mill again,
L hour
Sieve on 309 wu
scrcen: olend
all <500 u on
ball mill.
ae
Make up two
700 gm samples
for Cs-137
“analysis - save
remainder.
.(
_
Samples
—
—_
we
A
B
and teeord weichts
1
—
t
—
i
a
'
Step12
Make up one200 gm
‘
compdsite sample from
'
| Romainder |
Coarse
! Scorace
nt
layers 1 and 2 and
one 200 gm composite
Saroles
sample from layers 3
and & for Pu-239,240
analysis, save -remain-
| /
|
” 18213 :
——' Lo
eh
ee wee
| Renaindar_|
ae
151
a
f-
Storaze |