| |
|
Approximate Time In Hours At Various Flow Rates |
|
Size |
Gas |
1LPM |
2LPM |
3LPM |
4LPM |
5LPM |
6LPM |
|
SMALL CYLINDERS |
|
E |
O2 |
11.0 |
5.5 |
3.6 |
2.7 |
2.2 |
1.8 |
|
E |
N2O |
56.5 |
13.2 |
8.8 |
6.6 |
5.3 |
4.4 |
|
Large Cylinders |
|
G |
O2 |
88.3 |
44.1 |
29.1 |
22.0 |
18.6 |
14.7 |
|
H |
O2 |
115.1 |
57.5 |
38.3 |
28.7 |
23.0 |
19.1 |
|
*G |
N2O |
230.0 |
115.0 |
76.6 |
57.5 |
46.0 |
38.3 |
|
**G |
N2O |
265.0 |
132.0 |
88.0 |
66.0 |
52.9 |
44.1 |
|
Chart for Calculating % of N2O |
N20
Flow
LPM |
10 |
91% |
83% |
77% |
71% |
67% |
63% |
59% |
56% |
53% |
50% |
|
9 |
90% |
82% |
75% |
69% |
64% |
60% |
56% |
53% |
50% |
47% |
|
8 |
89% |
80% |
73% |
67% |
62% |
57% |
53% |
50% |
47% |
44% |
|
7 |
88% |
78% |
70% |
64% |
58% |
54% |
50% |
47% |
44% |
41% |
|
6 |
86% |
75% |
67% |
60% |
55% |
50% |
46% |
43% |
40% |
38% |
|
5 |
83% |
71% |
63% |
56% |
50% |
5% |
42% |
38% |
36% |
33% |
|
7 |
80% |
67% |
57% |
50% |
44% |
40% |
36% |
33% |
31% |
29% |
|
3 |
75% |
60% |
50% |
43% |
38% |
33% |
30% |
27% |
25% |
23% |
|
2 |
67% |
50% |
40% |
33% |
29% |
25% |
22% |
20% |
18% |
17% |
|
1 |
50% |
33% |
25% |
20% |
17% |
14% |
13% |
11% |
10% |
9% |
|
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
|
|
O2
Flow
LPM |
|
|
% N2O shown with underlines and in dark gray boxes
are concentrations of N2O greater than those
recommended for nitrous oxides-oxygen conscious
sedation systems by the council on Dental Material,
Instruments, and Equipment of the American Dental
Association. *
*American Dental
Association Acceptance Program Guidelines for
Nitrous Oxide Sedation Systems dated May, 1994 |
|
%N2O shown in dark gray boxes are concentrations of
N2O where careful monitoring of the patient is
recommended. **
**Draft of Handbook of Nitrous Oxide Oxygen Sedation
Health Professions, Clark, M.S, DMD & Brunick, A.,
DS, 1998 |
 |
|
