(a) License. A document issued by the State Fire Marshal authorizing a concern at a fixed location to engage in the business of servicing fire extinguishers, or a public or private entity not engaged in the business of servicing fire extinguishers, to perform specific acts of servicing portable fire extinguishers (as specified in section 595.5).

(b) Licensee. A specific concern or a public or private entity to which a license has been issued by the State Fire Marshal.

(c) Listed. Equipment or materials included in a list published by a State Fire Marshal approved laboratory having a third party certification program for portable fire extinguishers which meets or exceeds ANSI/UL 1803, Standard for Factory Follow-up on Third Party Certified Portable Fire Extinguishers, 1st Edition, as determined by the State Fire Marshal.

(d) Listed Label. A tag, plate or band with legible information or symbols in accordance with the standards of Section 561.2 attached to a fire extinguisher cylinder, shell or shroud by the manufacturer.

(e) Loaded Stream Charge. A water-based extinguishing medium that uses an alkali metal salt as a freezing point depressant.

(f) Low pressure cylinder. Low pressure cylinders are those containing fire-extinguishing agent (medium), nitrogen, compressed air, or other compressed gases at a service pressure of 500 psi (3447 kPa) or lower at 70 degrees Fahrenheit (21 °C).