Teledyne 4700 Installation And Operation Manual page 129

Gas Chemical Common
Formula Properties
Carbon CO Asphyxiant, Colorless,
2
Dioxide odorless. When breathed
in large quantities, may
cause acid taste.
Non-flammable. Not gen-
erally present in danger-
ous amounts unless an
oxygen deficiency exists.
Carbon CO Chemical asphyxiant. Col-
Monoxide orless, odorless, tasteless.
Flammable.
Poisonous.
Carbon CCl Heavy, ethereal odor.
4
Tetra-
Chloride
Chlorine Cl Irritant. Yellow-green color.
2
Choking odor detectable in
very low concentrations.
Non-flammable.
Formal- CH O Colorless, pungent suffo-
2
dehyde cating odor.
Gasoline C H Volatile solvent.
5 12
to Colorless. Odor notice-
C H able at 0.03%. Flammable.
9 20
Hydrogen H Simple asphyxiant. Color-
2
less, odorless, tasteless.
Flammable
Hydrogen HCN Faint odor of bitter
Cyanide almonds.
Colorless gas
Hydrogen H S Irritant and poisonous vol-
2
Sulfide atile compound. Rotten
egg odor in small concen-
trations. Exposure for 2 to
15 min. at 0.01% impairs
sense of smell. Odor not
evident at high concentra-
tions. Colorless. Flamma-
ble.
Methane CH Simple asphyxiant.
4
Colorless, odorless, taste-
less, flammable.
Nitrogen N Simple asphyxiant. Color-
2
less, tasteless. Non-flam-
mable. Principal
constituent of air. (about
79%).
Table B-1 Hazardous Gases (Continued)
Specific Physiological
Gravity or Effect*
Vapor
Density
Air = 1
1.53 Cannot be endured at 10%
more than a few minutes,
even if subject is at rest and
oxygen content is normal.
Acts on respiratory nerves.
0.97 Combines with hemoglobin
of blood. Unconsciousness
in 30 min. at 0.2% to 0.25%.
Fatal in 4 hours at 0.1%.
Headache in few hours at
0.02%.
5.3 Intestinal upset, loss of con-
sciousness, possible renal
damage, respiratory failure.
2.49 Irritates respiratory tract.
Kills most animals in a very
short time at 0.1%.
1.07 Irritating to the nose.
3.0 Anesthetic effects when
to inhaled. Rapidly fatal at
4.0 2.4%. Dangerous for short
exposure at 1.1 to 2.2%.
0.07 Acts mechanically to deprive
tissues of oxygen. Does not
support life.
0.93 Slight symptoms appear
upon exposure to 0.002% to
0.004%. 0.3% rapidly fatal.
1.19 Impairs sense of smell, rap-
idly as concentration
increases. Death in few min-
utes at 0.2%. Exposure to
0.07 to 0.1% rapidly causes
acute poisoning. Paralyzes
respiratory center.
0.55 Acts mechanically to deprive
tissues of oxygen. Does not
support life. vided oxygen
0.97 Physiologically inert.
Isco 4700 Refrigerated Sampler
Appendix B General Safety Procedures
Max Max. Explosive
Safe Safe Range Location
60 Min. 8 Hour (% by vol.
Exposure Exposure in air.) Highest
ppm ppm Limits Concentration
lower/upper
40,000 5,000 — At bottom;
to — when heated
60,000 may stratify
at points
above bottom.
400 50 12.5 Near top,
74.0 especially if
present with
illuminating
gas.
1,000 100 — At bottom.
to —
1,500
4 1 — At bottom.
—
— 10 7.0 Near bottom
73.0
4,000 1,000 1.3 At bottom
to 6.0
7,000
— — 4.0 At top
74.0
— 10 6.0 Near top
40.0
200 20 4.3 Near bottom,
to 45.0 but may be
300 above bottom
if air is heated
and highly
humid.
Probably no — 5.0 At top, increas-
limit, pro- 15.0 ing to certain
depth.
percent-age
is sufficient
for life.
— — — Near top, but
— may be found
near bottom.
Likely Most Simplest and
Common Cheapest
of Sources Safe Method
of Testing
Products of combus- Oxygen
tion, sewer gas, deficiency
sludge. Also issues indicator
from carbonaceous
strata.
Manufactured gas, CO ampoules
flue gas, products of
combustion, motor
exhausts. Fires of
almost any kind.
Industrial wastes, Detectable odor
solvent, cleaning at low concentrations
Chlorine cylinder and Detectable odor at
feed line leaks low concentrations
Incomplete combus- Detectable odor
tion of organics.
Common air pollut-
ant, fungicide.
Service stations, 1. Combustible
garages, storage gas indicator.
tanks, houses.
2. Oxygen
deficiency
indicator.**
Manufactured gas, Combustible gas
sludge digestion tank indicator
gas, electrolysis of
water. Rarely from
rock strata.
Insecticide and Detector tube
rodenticide
Coal gas, petro- 1. H S Ampoule.
2
leum, sewer gas.
Fumes from blasting 2. 5% by weight
under some condi- lead acetate
tions. solution.
Sludge gas.
Natural gas, sludge 1. Combustible
gas, manufactured gas indicator
gas, sewer gas.
Strata of sedimen- 2. Oxygen defi-
tary origin. In ciency indicator.
swamps or marshes.
Sewer gas. sludge Oxygen
gas. Also issues deficiency
from some rock indicator
strata.
B-7