Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 411

B. Ventilation
1. Ovens, where flammable or toxic vapors are liberated, or through
which products or combustion are circulated shall be ventilated by
the introduction of a supply of fresh air and the proper exhaust to the
outdoors. Discharge pipes shall not terminate within three meters (3
m) measured horizontally, from any door window or wood frame wall
of any building. Such oven ventilation shall be arranged to provide
vigorous and well distributed air circulation within the oven to insure
that the flammable vapor concentration will be safely below the lower
explosive limit at all times. Unless the oven is operated in accordance
with specific approval specifying particular solvents and rate of
ventilation, the rate of ventilation shall not be less than seventy five
cubic meters (75 m 3 ) of fresh air per liter of solvent evaporated in
continuous process ovens, and not less than three cubic meters (3 m 3 )
per minute per liter of flammable solvent evaporated in batch process
ovens.
2. Exhaust duct openings shall be located in the area of greatest con-
centration or vapors.
3. All exhaust shall be by mechanical means using power driven fans.
SECTION 10.4.16.2
OPERATION
A. Operators Training
1. Operator training shall include information on: (1) combustion of air-
fuel mixtures, (2) explosion hazards, (3) sources of ignition and ignition
temperature, (4) atmosphere analysis, (5) handling of flammable and
toxic atmosphere gases, (6) functions of control of safety devices, and
(7) purpose and basic principles of the gas atmosphere generators.
2. Regular operators shall be retrained at intervals to maintain
proficiency and effectiveness. New operators shall be thoroughly
trained and tested in the use of equipment. Operators must have
access to operating instructions at all times.
3. Operating instructions shall be provided by the manufacturer. These
instructions shall include schematic piping and wiring diagrams as well
as light-up, shut-down, emergency and maintenance procedures.
SECTION 10.4.16.3
PROTECTION AND MAINTENANCE
A. Inspection, Testing and Maintenance
1. The equipment manufacturer shall inform the user regarding the need
for operational checks and maintenance and shall provide complete
and clear inspection, testing and maintenance instructions. The final
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