The following words, terms and phrases, when
used in this article, shall have the meanings ascribed to them in
this section, except where the context clearly indicates a different
meaning:
BOILING POINT
The boiling point of a liquid at a pressure of 14.7 psi.
Where an accurate boiling point is unavailable for the material in
question, or for mixtures which do not have a constant boiling point,
for purposes of this classification the initial point of a distillation
as determined by applicable test procedures and apparatus specified
ASTM D-86, Standard Method of Test for Distillation of Petroleum Products,
1962 edition, may be accepted in lieu of the boiling point of the
liquid.
COMBUSTIBLE LIQUID
Any liquid having a flash point at or above 140º F.
and below 200º F., and shall be known as Class III liquids.
FLAMMABLE LIQUID
Any liquid having a flash point below 140º F. and having
a vapor pressure not exceeding 40 pounds per square inch (absolute)
at 100º F. Flammable liquids shall be divided into two classes
of liquids as follows:
A.
Class I liquids shall include those having flash
points below 100º F. and may be subdivided as follows:
(1)
Class IA shall include those having flash points
below 73º F. and having a boiling point below 100º F.
(2)
Class IB shall include those having flash points
below 73º F. and having a boiling point at or above 100º
F.
(3)
Class IC shall include those having flash points
at or above 73º F. and below 100º F.
B.
Class II liquids shall include those having
flash points at or above 100º F. and below 140º F.
FLASH POINT OF THE LIQUID
The minimum temperature at which it gives off vapor sufficient
to form an ignitable mixture with the air near the surface of the
liquid or within the vessel used as determined by applicable test
procedures and apparatus as follows:
A.
Except for fuel oils and certain viscous materials,
the flash point of a liquid having a flash point at or below 175º
F. shall be determined in accordance with the applicable provisions
of ASTM D-56, Standard Method of Test for Flash Point by the Tag Closed
Tester, 1961 edition.
B.
Except for fuel oils, the flash point of liquids
having a flash point above 175º F. shall be determined in accordance
with the applicable provisions of ASTM D-92, Standard Method of Test
for Flash Point by the Cleveland Open Cup Tester, 1957 edition.
C.
The flash point of fuel oils and certain viscous
materials having a flash point at or below 175º F. shall be determined
in accordance with the applicable provisions of ASTM D-93, Standard
Method of Test for Flash Point by the Pensky-Martens Closed Tester,
1962 edition.
LIQUID
When not otherwise identified, both flammable and combustible
liquids.
UNSTABLE (REACTIVE) LIQUID
Any liquid which will vigorously and energetically react,
is potentially explosive, will polymerize, decompose instantaneously,
undergo uncontrollable autoreaction or can be exploded by heat, shock,
pressure or combinations thereof. Examples are organic peroxides and
nitromethane.
VAPOR PRESSURE
The pressure, measured in pounds per square inch (absolute)
exerted by a volatile liquid, as determined by applicable test procedures
and apparatus specified in ASTM D323, Standard Method of Test for
Vapor Pressure of Petroleum Products (Reid Method), 1958 edition.
This article shall apply to liquids with a flash point below 200º F.; and to liquids with flash points above 200º F., which when heated assume the characteristics of liquids with flash points below 200º F., except as provided in §
198-9B.
A permit shall be obtained for any of the following:
A. Storage, handling, or use of Class IA and Class IB
liquids in excess of one gallon in a dwelling or other place of human
habitation; or in excess of six gallons in any other building or other
occupancy; or in excess of 10 gallons outside of any building; except
that no permit shall be required for the following:
(1) For the storage or use of flammable or combustible
liquids in the fuel tank of a motor vehicle, aircraft, motorboat,
mobile power plant or mobile heating plant; or
(2) For the storage or use of paints, oils, varnishes
or similar flammable mixtures when such liquids are stored for maintenance,
painting or similar purposes for a period of not more than 30 days;
B. Storage, handling or use of Class II or Class III
liquids in excess of 25 gallons in a building or in excess of 60 gallons
outside of a building, except for fuel oil used in connection with
oil-burning equipment;
C. For the manufacturing, processing, blending or refining
of flammable or combustible liquids; or
D. For the storage of flammable or combustible liquids
in stationary tanks.
A container shall not exceed 60 gallons' individual
capacity and shall be made of metal except that:
A. Plastic or glass containers having an individual capacity
of not more than one pint may be used for flammable and combustible
liquids.
B. Plastic or glass containers having an individual capacity
of not more than one gallon may be used for medicines, beverages,
foodstuff and toiletries that are flammable or combustible liquids.
C. Plastic or glass containers having an individual capacity
of not more than one gallon may be used for flammable and combustible
liquids whose chemical purity would be contaminated by metal containers.