As used in this part, unless the context otherwise requires:

1. (1)

   1. (A) “ASME Boiler and Pressure Vessel Construction Code” means the title of the accepted reference for construction, operation, and inspection of boilers and pressure vessels, compiled and written by the American Society of Mechanical Engineers.
   2. (B) This code is the basis of this part;
2. (2) “Authorized inspector” or “inspector” means a deputy inspector duly appointed by the Chief Inspector of the Boiler Inspection Division, or an insurance inspector holding a National Board of Boiler and Pressure Vessel Inspectors commission and an Arkansas commission;

3. (3) “Boiler” means a closed vessel or container in which water is heated and/or steam is generated, steam is superheated, or any combination thereof, under pressure or vacuum by the direct application of heat, and shall be classified as defined by the several sections of the ASME Boiler Construction Code as follows:

   1. (A) Power Boilers, Section No. 1;
   2. (B) Low-pressure heating boiler, boiler used exclusively for low-pressure steam heating, hot water heating, and hot water supply;
   3. (C) Section No. 4; and
   4. (D) Miniature boilers, as defined in Section I;
4. (4) “Boiler, automatically fired” means a boiler which cycles automatically in response to a control system;
5. (5) “Boiler, high-pressure, steam, or vapor” means a boiler in which steam or vapor is generated at a pressure exceeding fifteen pounds per square inch gauge (15 psig);
6. (6) “Boiler, hot water heating” means a boiler in which no steam is generated and from which hot water is circulated for heating purposes, and then returned to the boiler;
7. (7) “Boiler, hot water supply” means a boiler that furnishes hot water to be used externally to itself at pressure not exceeding one hundred sixty pounds per square inch gauge (160 psig) or a temperature not exceeding two hundred fifty degrees Fahrenheit (250° F) (one hundred twenty degrees Celsius (120° C)) at or near the boiler outlet;
8. (8) “Boiler, low-pressure, steam or vapor” means a boiler in which steam or vapor is generated at a pressure not exceeding fifteen pounds per square inch gauge (15 psig);

9. (9) “Boiler, miniature” means a boiler that does not exceed any of the following limits:

   1. (A) Sixteen-inch inside diameter of shell;
   2. (B) Twenty square feet (20 ft²) heating surface;
   3. (C) Five cubic feet (5 ft³) gross volume, exclusive of casing and insulation; and
   4. (D) One hundred pounds per square inch gauge (100 psig) maximum allowable working pressure;
10. (10) “Department” means the Arkansas Department of Labor;
11. (11) “Director” means the Director of the Division of Labor;
12. (12) “Division” means the Boiler Inspection Division of the Division of Labor;
13. (13) “Existing installation” means any power boiler or miniature boiler which was in service on or before January 1, 1938, and any low-pressure heating boiler or unfired pressure vessel which was in service on or before June 10, 1959, and which was at that time recognized by the Division of Labor as an existing installation;
14. (14) “Factor of safety” means the ratio of the ultimate strength of materials to the allowable stress;
15. (15) “Fittings” and “appliances” means such necessary safety devices as are attached to a boiler and/or an unfired pressure vessel for safety purposes;

16. (16)

    1. (A) “National board” means the National Board of Boiler and Pressure Vessel Inspectors.
    2. (B) When a boiler or pressure vessel bears an ASME symbol stamp and is stamped “National Board” or “N.B.”, it shall mean that the boiler or vessel is constructed to comply with the recognized standard of construction and has been inspected by an inspector holding a National Board of Boiler and Pressure Vessel Inspectors commission;
17. (17) “Owner” or “user” means any person, firm, partnership, or corporation, or other entity owning or operating, or in charge or in control of any boiler and/or any unfired pressure vessel;
18. (18) “Second-hand boiler” or “second-hand pressure vessel” means any boiler or pressure vessel which has undergone both a change of ownership and location;
19. (19) “State Special” means a boiler or fired/unfired pressure vessel of any type or size, which carries neither the ASME symbol nor National Board of Boiler and Pressure Vessel Inspectors stamping, which may be acceptable for use provided the manufacturer, installer, or owner obtains a variance pursuant to 20 CAR § 880-702; and
20. (20) “Unfired pressure vessel or pressure vessels” means any unfired pressure vessel constructed for the accumulation, storage, or transportation of air, liquids, or gases that are under induced pressure, and as defined by Section VIII, Division 1, of the ASME Boiler Construction Code, except containers used for liquefied petroleum gases.

Codification Notes: This section as promulgated prior to codification into the Code of Arkansas Rules contained the following footnote in subdivision (9)(C) after the phrase “gross volume”: “1This gross volume is intended to include such gas passages as are integral with the assembled pressure parts.”