Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-155 - Safety standards for construction work › Part D - FIRE PROTECTION AND PREVENTION › Section 296-155-250 - Definitions applicable to this part

Current through Register Vol. 24-14, July 15, 2024
For the purpose of this part, means equipment that has been
				  listed or approved by a nationally recognized testing laboratory such as
				  Factory Mutual Engineering Corp., or Underwriters' Laboratories, Inc., federal
				  agencies such as United States Mine Safety and Health Administration or United
				  States Coast Guard, which issue approvals for such equipment, or the department
				  of labor and industries.
Closed container
. A container so sealed by means
				  of a lid or other device that neither liquid nor vapor will escape from it at
				  ordinary temperatures.
Combustion
. Any chemical process that involves
				  oxidation sufficient to produce light or heat.
Fire brigade
. An organized group of employees
				  that are knowledgeable, trained, and skilled in the safe evacuation of
				  employees during emergency situations and in assisting in firefighting
				  operations.
Fire resistance
. So resistant to fire that, for
				  specified time and under conditions of a standard heat intensity, it will not
				  fail structurally and will not permit the side away from the fire to become
				  hotter than a specified temperature. For purposes of this part, fire resistance
				  must be determined by the Standard Methods of Fire Tests of Building
				  Construction and Materials, NFPA 251-72.
Flammable
. Capable of being easily ignited,
				  burning intensely or having a rapid rate of flame spread.
Flammable liquid
. Any liquid having a flashpoint
				  at or below 199.4°F (93°C). Flammable liquids are divided into 4
				  categories as follows:
(a) Category 1 includes liquids having flashpoints below
				  73.4°F (23°C) and having a boiling point at or below 95°F
				  (35°C).
(b) Category 2 includes liquids having flashpoints below
				  73.4°F (23°C) and having a boiling point above 95°F
				  (35°C).
(c) Category 3 includes liquids having flashpoints at or
				  above 73.4°F (23°C) and at or below 140°F (60°C). When a
				  Category 3 liquid with a flashpoint at or above 100°F (37.8°C) is
				  heated for use to within 30°F (16.7°C) of its flashpoint, it must be
				  handled in accordance with the requirements for a Category 3 liquid with a
				  flashpoint below 100°F (37.8°C).
(d) Category 4 includes liquids having flashpoints above
				  140°F (60°C) and at or below 199.4°F (93°C). When a Category 4
				  flammable liquid is heated for use to within 30°F (16.7°C) of its
				  flashpoint, it must be handled in accordance with the requirements for a
				  Category 3 liquid with a flashpoint at or above 100°F (37.8°C).
(e) When liquid with a flashpoint greater than 199.4°F
				  (93°C) is heated for use to within 30°F (16.7°C) of its flashpoint,
				  it must be handled in accordance with the requirements for a Category 4
				  flammable liquid.
Flashpoint
. The minimum temperature at which a
				  liquid gives off vapor within a test vessel in sufficient concentration to form
				  an ignitable mixture with air near the surface of the liquid, and must be
				  determined as follows:
(a) The flashpoint of liquids having a viscosity less than 45
				  Saybolt Universal Second(s) at 100°F (37.8°C) and a flashpoint below
				  175°F (79.4°C) must be determined in accordance with the Standard
				  Method of Test for Flash Point by the Tag Closed Tester, ASTM D-56-69, or an
				  equivalent method as defined by WAC
				  296-901-14024, Appendix
				  B-Physical hazard criteria.
(b) The flashpoints of liquids having a viscosity of 45
				  Saybolt Universal Second(s) or more at 175°F (79.4°C) or higher must be
				  determined in accordance with the Standard Method of Test for Flash Point by
				  the Pensky Martens Closed Tester, ASTM D-93-69, or an equivalent method as
				  defined by WAC
				  296-901-14024, Appendix
				  B-Physical hazard criteria.
Liquified petroleum gases
, LPG, and LP
				  gas.
Any material which is composed predominantly of any of the
				  following hydrocarbons, or mixtures of them, such as propane, propyl-ene,
				  butane (normal butane or isobutane), and butylenes.
Portable tank
. A closed container having a
				  liquid capacity more than 60 U.S. gallons, and not intended for fixed
				  installation.
Safety can
. An approved closed container, of not
				  more than 5 gallons capacity, having a spring-closing lid and spout cover and
				  so designed that it will safely relieve internal pressure when subjected to
				  fire exposure.
Salamander
. A portable heating device, solid or
				  liquid fueled, which is not vented to the outdoor atmosphere.
Vapor pressure
. The pressure, measured in pounds
				  per square inch (absolute), exerted by a volatile liquid as determined by the
				  "Standard Method of Test for Vapor Pressure of Petroleum Products (Reid
				  Method)," (ASTM D-323-68).
Statutory Authority:
					 RCW
					 49.17.040 and
					 49.17.050. 86-03-074 (Order
					 86-14), § 296-155-250, filed 1/21/86; Order 74-26, § 296-155-250,
					 filed 5/7/74, effective 6/6/74.