|
CFC Article 80 - Hazardous Materials |
| Storage
- Toxic and Highly Toxic Compressed Gases - Indoor Storage |
| 8003.3.1.6
Gas detection. A continuous
gas-detection system shall be provided to detect the presence of gas at or below
the permissible exposure limit or ceiling limit. The detection system shall initiate
a local alarm and transmit a signal to a constantly attended control station.
The alarm shall be both visual and audible and shall be designed to provide warning
both inside and outside of the storage area. The audible alarm shall be distinct
from all other alarms. |
| EXCEPTIONS: |
| 1. | Signal
transmission to a constantly attended control station need not be provided when
not more than one cylinder is stored. |
| 2. | A
continuous gas-detection system need not be provided for toxic gases when the
physiological warning properties for the gas are at a level below the accepted
permissible exposure limit for the gas. |
The
gas-detection system shall be capable of monitoring the room or area in which
the gas is stored at or below the permissible exposure limit or ceiling limit
and the discharge from the treatment system at or below one-half the IDLH limit.
|
| Use,
Dispensing and Handling - Indoor - Closed Systems - Special Requirments for Highly
Toxic and Toxic Compressed Gases |
| 8004.2.3.7.6
Gas detection. Gas detection shall be provided in accordance with Section
8003.3.1.6. Activation of the monitoring system shall automatically close the
shutoff valve on highly toxic or toxic gas supply lines related to the system
being monitored. |
| EXCEPTION:
Automatic shutdown need not be provided for reactors utilized for the production
of toxic or highly toxic gases when such reactors are: |
| 1. | Operated
at pressures less than 15 psig (103.4 kPa), |
| 2. | Constantly
attended, and |
| 3. | Provided
with readily accessible emergency shutoff valves.
|
| Use,
Dispensing and Handling - Outdoor - Closed Systems - Special Requirements for
Highly Toxic and Toxic Compressed Gases |
| 8004.3.5.5
Gas detection. Gas detection shall be provided in gas cabinets and exhausted
enclosures in accordance with Section 8003.3.1.6. Activation of the monitoring
system shall automatically close the shutoff valve on highly toxic or toxic gas
supply lines related to the system being monitored. |
| EXCEPTION:
Automatic shutdown need not be provided for reactors utilized for the production
of toxic or highly toxic gases when such reactors are: |
| 1. | Operated
at pressures less than 15 psig (103.4 kPa), |
| 2. | Constantly
attended, and |
| 3. | Provided
with readily accessible emergency shutoff valves. |
