835/ Hazardous Substances / 992
H
a
z
ardous Substances
BOS-
P
RD-0
3
04.90090
3
T
h
e
f
a
c
tors
are
:
x
T
h
e
r
i
s
k
asso
ci
ated
w
i
t
h
t
h
e
h
a
z
ard
;
x
T
h
e probab
ili
t
y
t
h
at e
x
pos
u
re ma
y
o
cc
u
r
;
x
T
h
e e
x
pos
u
re d
u
rat
i
on
to a
h
a
z
ard
(
rang
i
ng
f
rom
o
cc
as
i
ona
l
to
c
ont
i
n
u
o
u
s
c
onta
c
t
w
i
t
h
t
h
e
h
a
z
ard
);
x
T
h
e poss
i
b
l
e
c
onse
q
u
en
c
es
t
h
at ma
y
res
u
l
t
.
T
h
e
assessment
should
i
n
cl
u
de
h
a
z
ards
posed
b
y
storage
,
h
and
li
ng
,
u
se
and
d
i
sposa
l
o
f
h
a
z
ardo
u
s
s
u
bstan
c
es
.
A
tmosp
h
er
ic
mon
i
tor
i
ng
i
s
not
ro
u
t
i
ne
l
y
re
q
u
i
red
f
or
assessment
,
h
o
w
ever
i
t
m
i
g
h
t
be
appropr
i
ate
i
n
c
erta
i
n
ci
r
c
u
mstan
c
es
to determ
i
ne a
i
rborne
c
on
c
entrat
i
ons
.
Step 4
E
valuate the Level o
f
R
i
sk
W
h
en est
i
mat
i
ng
t
h
e
l
eve
l
o
f
r
i
s
k i
t
i
s
ne
c
essar
y
to
c
ons
i
der
t
h
e
f
o
ll
o
w
i
ng
f
or
ea
c
h h
a
z
ardo
u
s
s
u
bstan
c
es
:
x
T
h
e nat
u
re
and
sever
i
t
y
o
f
t
h
e
h
a
z
ard
;
x
T
h
e degree
o
f
e
x
pos
u
re o
f
persons
i
n
t
h
e
w
or
k
p
l
a
c
e
;
x
T
h
e e
xi
st
i
ng
c
ontro
l
ade
q
u
ate
l
y
meas
u
res
c
ontro
l
e
x
pos
u
re
.
T
h
e
r
i
s
k
ma
y
t
h
en
be
i
dent
i
f
i
ed as
e
i
t
h
er
Hi
g
h
,
Med
i
u
m
,
or
L
o
w
.
Lo
w
R
i
sk
A
r
i
s
k
ma
y
be
regarded as
l
o
w
i
f
t
h
e
h
a
z
ardo
u
s
s
u
bstan
c
e
i
s
a
l
read
y
c
ontro
ll
ed or
c
an be
read
il
y
c
ontro
ll
ed
i
n
a
cc
ordan
c
e
w
i
t
h
“
M
SDS”
and
t
h
ere
i
s
not
a
s
i
gn
i
f
ic
ant
r
i
s
k
to
h
ea
l
t
h
.
Med
i
um or
Hi
gh R
i
sk
T
h
ere
i
s med
i
u
m
or
h
i
g
h
r
i
s
k i
f:
x
T
h
e
sever
i
t
y
o
f
t
h
e
a
c
u
te
and
c
h
ron
ic
h
ea
l
t
h
e
ff
e
c
ts
f
rom
e
x
pos
u
re
to
t
h
e
h
a
z
ardo
u
s
s
u
bstan
c
es
are
s
i
gn
i
f
ic
ant
;
x
T
h
ere
i
s
e
i
t
h
er
no
,
or
i
nade
q
u
ate
, c
ontro
l
meas
u
res
i
n
p
l
a
c
e
to prote
c
t emp
l
o
y
ees
f
rom
e
x
pos
u
re
;
x
T
h
e
l
eve
l
o
f
e
x
pos
u
re
i
s
h
i
g
h
.
C
ontrol Measures
I
f
t
h
e
r
i
s
k
assessment
i
nd
ic
ates
t
h
at
t
h
ere
i
s
e
x
pos
u
re
to
a
h
a
z
ardo
u
s
s
u
bstan
c
e
,
t
h
e
c
ontro
l
or
prevent
i
on
o
f
t
h
i
s
e
x
pos
u
re
i
s
ne
c
essar
y
. W
h
en
c
ons
i
der
i
ng met
h
ods
to
c
ontro
l
e
x
pos
u
re
,
t
h
e
a
i
m
i
s
to
remove
t
h
e
r
i
s
k
o
f
e
x
pos
u
re
(i.
e
.
remove
t
h
e
h
a
z
ard
). W
h
ere
t
h
i
s
i
s
not
poss
i
b
l
e
,
y
o
u
m
u
st
a
i
m
to
red
u
c
e
t
h
e
e
x
pos
u
re
to
A
s
L
o
w A
s
R
easonab
l
e
P
ra
c
t
ic
ab
l
e
(
A
L
A
R
P
.) I
t
i
s
i
mportant
t
h
at
a
ll
t
h
e
w
a
y
s
c
h
em
ic
a
l
s ma
y
enter
t
h
e
bod
y
are
ta
k
en
i
nto
a
cc
o
u
nt
. T
o do
t
h
i
s
a
li
st
o
f
c
ontro
l
met
h
od
opt
i
ons
shall
be
assessed
.
E
l
i
m
i
nat
i
on
Fi
rst
,
assess
wh
et
h
er
a
h
a
z
ardo
u
s
s
u
bstan
c
e
c
an
be
e
li
m
i
nated
. I
f
pra
c
t
ic
ab
l
e
,
e
li
m
i
nate
t
h
e
u
se
o
f
t
h
e
h
a
z
ardo
u
s
s
u
bstan
c
e
b
y u
s
i
ng
an
a
l
ternat
i
ve met
h
od or
prod
u
c
t
.
Subst
i
tut
i
on
W
h
ere
e
li
m
i
nat
i
on
i
s
not
pra
c
t
ic
ab
l
e
,
s
u
bst
i
t
u
te
w
i
t
h
a
l
ess
h
a
z
ardo
u
s
s
u
bstan
c
e
or
u
se
o
f
t
h
e
same
s
u
bstan
c
e
i
n a
l
ess
h
a
z
ardo
u
s
f
orm
or
env
i
ronment
(i
n
c
reased
vent
il
at
i
on
,
open area
,
et
c.).
I
solat
i
on
I
f
s
u
bst
i
t
u
t
i
on
i
s
not
pra
c
t
ic
ab
l
e
, i
t
ma
y
be
poss
i
b
l
e
to
i
so
l
ate
t
h
e
w
or
k
er
f
rom
t
h
e
h
a
z
ardo
u
s
pro
c
ess
b
y
d
i
stan
c
e
or
b
y
t
h
e
u
se
o
f
barr
i
ers
.
Redes
i
gn
(
eng
i
neer
i
ng
) C
ontrols
E
ng
i
neer
i
ng
c
ontro
l
s
i
nvo
l
ve
t
h
e
u
se
o
f
p
l
ant
or
pro
c
ess
wh
ic
h
c
onta
i
n or
m
i
n
i
m
i
z
e
t
h
e
generat
i
on
o
f
e
x
pos
u
re
to
a
h
a
z
ardo
u
s
s
u
bstan
c
e
,
b
y
s
u
ppress
i
on
or
c
onta
i
nment
o
f
a
h
a
z
ardo
u
s
s
u
bstan
c
e
,
or
b
y
li
m
i
t
i
ng
t
h
e area o
f
c
ontam
i
nat
i
on
i
n
t
h
e
event
o
f
sp
ill
s
or
l
ea
k
s
(
e
.
g
. l
o
c
a
l
e
x
h
a
u
st
vent
il
at
i
on
or
e
x
tra
c
t
i
on
s
y
stem
).
V
ers
i
on
0
5
. O
r
i
g
i
na
l
date
:
2
5
/0
5
/01
2
.
V
ers
i
on date
:
3
1/1
2
/
2
01
5
.
V
a
li
d
vers
i
on
on
l
y
on
Q
M
S
s
i
te
.
U
n
c
ontro
ll
ed
do
c
u
ment
wh
en
pr
i
nted
.
P
ro
c
ed
u
re prepared b
y:
BOS S
en
i
or
Q
HS
E
Coord
i
nator
.
A
pproved
b
y:
BOS
Q
HS
E
Manager
.
V
a
li
dated
b
y:
BOS
Qu
a
li
t
y
R
epresentat
i
ve
P
age
9
o
f
11
835