R 408.41837
R 408.41837 Definitions; F.
Cite as Mich. Admin. Code R 408.41837
Rule 1837. (1) "Fire alarm signaling system" means an alerting signal that is clearly
audible throughout all areas and which would immediately alert employees in case of an
emergency.
(2) “Fire brigade” means an organized group of employees that are knowledgeable,
trained, and skilled in the safe evacuation of employees during emergency situations and
in assisting in fire fighting operations.
(3) "Fire fighting equipment" means any of the following:
(a) Portable extinguishers.
(b) Fixed fire equipment.
(c) Water barrels and pails.
(d) Standpipes.
(e) Fire hose.
(f) Fire alarms.
(4) "Fire protection" means to provide fire fighting equipment, training, and
evacuation plans.
(5) "Fire resistance" means that quality of a material that renders it so resistant to
fire that, for a specified time and under conditions of a standard heat intensity, the
material 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 shall
be determined by the fire test of building construction and materials, as prescribed in The
National Fire Protection Association Standard NFPA 251, "Standard Methods Of Fire
Testing Of Building Construction And Materials," 1990 edition, which is adopted by
reference in R 408.41802.
(6) "Fixed fire equipment" means a fire extinguishing system that is permanently
mounted and portable portions of a system, such as a hose and nozzle attached to a fixed
supply of extinguishing agent.
(7) "Flammable" means to ignite easily and burn intensely or means to have a rapid
rate of flame spread.
(8) "Flammable liquid" means any liquid having a vapor pressure not exceeding 40
pounds per square inch (absolute) at 100 ºF (37.8 ºC) and having a flashpoint at or below
199.4 ºF (93 ºC). Flammable liquids are divided into the following categories:
(a) Category 1 shall include liquids having flashpoints below 73.4 ºF (23 ºC) and
having a boiling point at or below 95 ºF (35 ºC).
(b) Category 2 shall include liquids having flashpoints below 73.4 ºF (23 ºC) and
having a boiling point above 95 ºF (35 ºC).
(c) Category 3 shall include liquids having flashpoints at or above 73.4 ºF (23 ºC)
and at or below 140 ºF (60 ºC).
(d) Category 4 shall include liquids having flashpoints above 140 ºF (60 ºC) and at
or below 199.4 ºF (93 ºC).
(9) "Flash point of the liquid” means the temperature at which it gives off vapor
sufficient to form an ignitable mixture with the air near the surface of the liquid within
the vessel used as determined by appropriate test procedure and apparatus as follows:
(a) The flashpoint of liquids having a viscosity less than 45 Saybolt Universal
Second(s) at 100 ºF (37.8 ºC) and a flashpoint below 175 ºF (79.4 ºC) shall be determined
in accordance with ASTM D56 “Standard Test Method for Flash Point by Tag Closed
Cup Tester,” 1969 edition, as adopted by reference in R 408.41802, or an equivalent
method as defined in Construction Safety Standard Part 42 “Hazard Communication,”
Appendix B, as referenced in R 408.41802.
(b) The flashpoints of liquids having a viscosity of 45 Saybolt Universal Second(s)
or more at 175 ºF (79.4 ºC) or higher shall be determined in accordance with ASTM D93
“Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester,” 1969
edition, as adopted by reference in R 408.41802, or an equivalent method as defined in
Construction Safety Standard Part 42 “Hazard Communication,” Appendix B, as
referenced in R 408.41802.