Radiation, Medical, Laboratory & Wildfire Exposure Standards

Grounded in the retrieved California Referenced Standards Code — click a citation to read the verbatim passage:

• CRSC § 12-3 Medium relevance — show source text

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  viii 2025 CALIFORNIA REFERENCED STANDARDS CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  PART 12 CROSS REFERENCE TABLE

  (Cross reference table is nonregulatory, intended only as an aid to the code user.)

  PART 12 STANDARD	SUBJECT	ADOPTING AGENCY	ASSOCIATED TITLE 24 BUILDING STANDARD
  Chapter 12-3	Releasing systems for security bars in dwellings	SFM	Part 2, Sections 1031.2.1, 1031.6, 1032.7 Part 2.5, Sections R319.1.1 and R319.4.4 Part 9, Sections 1031.2.1, 1031.6, 1032.7 Appendix 4 Section 452.1.5 and Title 19 provisions 4.1, 4.2, 4.3, 4.4, 4.5, 4.6 reprinted in Part 9 Part 10, Section 505.4
  Chapter 12-4A	Laboratory animal quarters standards	DPH	Part 2, Section 1236
  Chapter 12-4-1	Stage and Platforms	SFM	Part 2, Sections 410.2.7, 410.2.7.1, 410.2.7.2 Part 9, Sections 105.6.51, 4809
  Chapter 12-7-1	Fire-resistive standards. Fire tests of building construction and materials.	SFM	Part 2, Section 703
  Chapter 12-7-2	Reserved
  Chapter 12-7-3	Fire-resistive standards. Fire testing furnaces.	SFM	Part 9, Section 3001
  Chapter 12-7-4	Fire-resistive standards. Fire door assembly tests.	SFM	Part 2, Section 716
  Chapter 12-7-5	Fire-resistive standards. Interior finish of decorative material.	SFM	Part 2, Chapter 8 Part 9, Chapter 8
  Chapter 12-7A	Materials and construction methods for exterior wildfire exposure	SFM	Part 7, Chapter 5
  Chapter 12-8-1	Fire-resistive standards for fire protection	SFM	Part 2, Sections 408.14 and 435.6.2
  Appendix 12-8-1A	Calculation of the total rate of heat and carbon monoxide or carbon dioxide production	SFM
  Appendix 12-8-1B	Guide to mounting techniques for wall and ceiling interior finish material	SFM
  Chapter 12-10-1	Exits. Power-operated exit doors.	SFM	Part 2, Sections 408.4.2, 1010.1.4.2, 1010.1.9.1
  Chapter 12-10-2	Exits. Single-point latching or locking devices.	SFM	Part 2, Section 1010.2.2 Part 9, Section 1010.2.2
  Chapter 12-10-3	Exits. Emergency exit and panic hardware.

• CRSC § 12-7 Medium relevance — show source text

  3. When tested as follows, flames shall not reach the top edge of the specimen. The test shall be conducted in a draft free area, on a specimen of the material 12 inches by 12 inches (305 mm by 305 mm) suspended at a 45-degree angle from the horizontal with the upper and lower edges in a horizontal plane. The test flame shall be 3 inches (76 mm) long from a Bunsen burner of approximately [1] / 2 -inch (13 mm) inside diameter with the air supply completely shut off. The burner shall be positioned so that its top is 1 inch (25 mm) vertically below a point on the lower surface of the test specimen, 1 inch (25 mm) up from its lower horizontal edge and midway between the inclined edges. The exposure to the test flame and the duration of test shall be for a period of 2 minutes.

  2025 CALIFORNIA REFERENCED STANDARDS CODE 35

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  36 2025 CALIFORNIA REFERENCED STANDARDS CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  12-7A MATERIALS AND CONSTRUCTION METHODS

  FOR EXTERIOR WILDFIRE EXPOSURE

  EXTERIOR WALL SIDING AND SHEATHING

  SFM STANDARD 12-7A-1

  12-7A-1.1 Application. The minimum design, construction and performance standards set forth herein for exterior wall siding and sheathing are those deemed necessary to establish conformance to the provisions of these regulations. Materials and assemblies that meet the performance criteria of this standard are acceptable for use as defined in California Building Standards Code.

  12-7A-1.2 Scope. This standard evaluates the performance of exterior walls of structures when exposed to direct flames.

  12-7A-1.3 Referenced documents.

  1. ASTM E2257, Test Method for Room Fire Test of Wall and Ceiling Materials and Assemblies.

  2. ASTM D4442, Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials.

  3. ASTM D4444, Test Methods for Use and Calibration of Hand-Held Moisture Meters.

  4. California Building Code, Chapter 7A.

  12-7A-1.4 Definitions.

  1. Siding (cladding). Any material that constitutes the exposed exterior covering of an exterior wall and is applied over sheathing or is directly attached to the wall structural system.
  2. Sheathing. The material placed on an exterior wall beneath cladding or siding and is directly attached to the wall structural system.

  12-7A-1.5 Summary of test method.

  1. Direct flame exposure. This test method provides for the direct flame exposure of a wall specimen to a flame source centered at the base of a 4-foot by 8-foot (1220 mm by 2440 mm) test assembly.
  2. Gas burner. The method employs a gas burner to produce a diffusion flame in contact with the test wall assembly.
  3. Heat output. The gas burner produces a prescribed net rate of heat output of 8535 Btu/min (150 kW) for a period of 10 minutes, after which the flame exposure is terminated.
  4. Resistance to fire penetration. The test method measures the ability of the wall system to resist fire penetration from the exterior to the unexposed side of the test assembly under the conditions of exposure.
• CRSC § 1224.34.2.14 Medium relevance — show source text

  1224.34.2.14 Hot lab for scintigraphy (gamma camera), PET and SPECT facilities. A securable area or room shall be provided in which radiopharmaceuticals can be safely stored and doses can be calculated and prepared. 1. A single hot lab shall be permitted to serve multiple scanners and nuclear medicine modalities. 2. The hot lab shall be shielded in compliance with Section 1224.34.1.1. 3. A source storage area, a dose area and a storage area for syringe shields shall be provided.

  1224.34.3 Radiotherapy service space.

  1224.34.3.1 Radiation therapy space. If radiation therapy is provided, the following shall be accommodated: 1. Patient reception and waiting areas. 2. Space for medical and physics staff functions. 3. Space for equipment and supplies. 4. Housekeeping room. 5. Direct access to space provided for radiation measurement and calibration equipment, including a calibration constancy instrument and access to a secondary standard dose meter.

  12-54 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  INTERIOR ENVIRONMENT

  5.1. A megavoltage treatment unit capable of delivering x-rays or gamma rays of effective energy 500 KeV or more and conforming to the requirements of Chapter 31C and the California Radiation Control Regulations, Califor- nia Code of Regulations, Title 17, Division 1, Chapter 5, Subchapter 4. 5.2. Access to a medium voltage or superficial treatment unit delivering 500 KeV or less, but otherwise having the same functional characteristics as the above mega-voltage units and conforming to the requirements of Chap- ter 31C and the California Radiation Control Regulations, California Code of Regulations, Title 17, Division 1, Chapter 5, Subchapter 4. 5.3. Direct access to space provided for brachytherapy equipment which shall meet the requirements of Chapter 31C and the California Radiation Control Regulations, California Code of Regulations, Title 17, Division 1, Chap- ter 5, Subchapter 4. 5.4. Shielding of the rooms shall meet the requirements of Chapter 31C and the California Radiation Control Regula- tions. California Code of Regulations, Title 17, Division 1, Chapter 5, Subchapter 4.

  1224.34.3.2 Radiation protection. Cobalt, linear accelerators, hot lab and high dose rate brachytherapy rooms and simulation rooms require radiation protection. All rooms that provide radiation treatment shall be appropriately shielded. A certified physi- cist shall specify the type, location and amount of protection to be installed in accordance with final approved department layout and equipment selection. Radiation protection requirements shall be incorporated into the construction documents and comply with Chapter 31C and the requirements of California Radiation Control Regulations, California Code of Regulations, Title 17, Divi- sion 1, Chapter 5 and Subchapter 4.

  1224.34.3.3 Room sizes. Rooms shall be sized as follows:

  1. Cobalt rooms and linear accelerators shall be sized in accordance with equipment requirements and shall accommo- _date a gurney for litter borne patients. Layouts shall provide for preventing the escape of radioactive particles.

• CRSC § 12-7 Medium relevance — show source text

  Fire tests of building
  construction and materials.|SFM|Part 2, Section 703| |Chapter 12-7-2|Reserved||| |Chapter 12-7-3|Fire-resistive standards.
  Fire testing furnaces.|SFM|Part 9, Section 3001| |Chapter 12-7-4|Fire-resistive standards.
  Fire door assembly tests.|SFM|Part 2, Section 716| |Chapter 12-7-5|Fire-resistive standards. Interior
  finish of decorative material.|SFM|Part 2, Chapter 8
  Part 9, Chapter 8| |Chapter 12-7A|Materials and construction methods for
  exterior wildfire exposure|SFM|Part 7, Chapter 5| |Chapter 12-8-1|Fire-resistive standards for fire protection|SFM|Part 2, Sections 408.14 and 435.6.2| |Appendix 12-8-1A|Calculation of the total rate of heat and carbon
  monoxide or carbon dioxide production|SFM|| |Appendix 12-8-1B|Guide to mounting techniques for wall and
  ceiling interior finish material|SFM|| |Chapter 12-10-1|Exits. Power-operated exit doors.|SFM|Part 2, Sections 408.4.2, 1010.1.4.2, 1010.1.9.1| |Chapter 12-10-2|Exits. Single-point latching or locking devices.|SFM|Part 2, Section 1010.2.2
  Part 9, Section 1010.2.2| |Chapter 12-10-3|Exits. Emergency exit and panic hardware.
  |SFM|Part 9, Section 1009.12| |Chapter 12-11A,
  12-11B|Detectable warning products and directional
  surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
  11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
  Part 6, Section 110.8
  Part 9, Section 720, Table 721.1(1)
  Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
  automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
  Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
  actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
  Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
  Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems.

• CRSC § 1.11. Medium relevance — show source text

  The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

  2025 CALIFORNIA BUILDING CODE 31C-1

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  31C-2 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  31C [DPH] RADIATION

  SECTION 3101C—SCOPE

  For the purpose of this chapter, the following terms shall have the meaning indicated:

  PRIMARY PROTECTIVE BARRIER is a barrier to attenuate the useful beam.

  SECONDARY PROTECTIVE BARRIER is a barrier to attenuate stray radiation.

  STRAY RADIATION is radiation not serving any useful purpose, which includes leakage and scattered radiation.

  USEFUL BEAM is the radiation which passes through the window, aperture, cone or other collimating device of the tube housing.

  SECTION 3102C—RADIATION SHIELDING BARRIERS

  All radiation shielding barriers in rooms and enclosures housing machines shall meet the requirements of Section 12-31C-101, Chapter 12-31C, Part 12, California Referenced Standards Code. The Department of Health Services is the only agency that may grant a variance or exception to these standards.

  SECTION 3103C—MEDICAL RADIOGRAPHIC AND PHOTOFLUOROGRAPHIC INSTALLATIONS

  3103C.1 Operator station. The operator’s station at the control shall be behind a protective barrier either in a separate room, in a protected booth or behind a shield which will intercept the useful beam and any radiation which has been scattered only once.

  3103C.2 Patient observation and communication. Provision shall be made for the operator to observe and communicate with the patient without leaving the shielded position at the control panel. When an observation window is used, it must provide radiation atten- uation equal to that required in the surrounding barrier.

  SECTION 3104C—MEDICAL THERAPEUTIC X-RAY INSTALLATIONS

  3104C.1 General. All wall, floor and ceiling areas that can be struck by the useful beam, plus a border of 1 foot (305 mm), shall be provided with primary protective barriers.

  3104C.2 Equipment operating above 50 kVp. Equipment operating above 50 kVp shall conform with the following: 1. The control station shielding shall either be an integral part of the building or anchored to the building. 2. The control station shall be provided with a window having radiation attenuation equal to that required by the adjacent barrier, or a mirror system, or a closed-circuit television viewing screen. The patient area must be visible to the operator with- out having to leave the protected area during exposure.

• CRSC § 0.75 Medium relevance — show source text

  The bottom of the test specimen shall be protected from burner fire exposure by the placement of a 4-foot-wide (1220-mm) thermal barrier consisting of nominal 0.75 inch (19 mm) cement board (or equivalent) between the burner enclosure and the test specimen. The burner enclosure shall be in contact with the protective barrier. The thermal barrier shall be positioned so that the top edge extends 3 inch ± 1 inch (76 mm ± 25 mm) above the top edge of the burner, and fastened to the base of the wall in such a manner to prevent obstruction of the burner flame caused by distortion away from the surface of the wall. Any gaps between the top edge of the thermal barrier and the test wall surface shall be filled with ceramic wool, or equivalent, prior to the test. Natural gas, methane or propane shall be supplied to the burner through a metered control system. The gas supply to the burner shall produce a net heat output of 8535 ± 454 Btu/min (150 ± 8 kW) throughout the flame

  exposure. The burner shall be ignited by a pilot burner or a remotely controlled spark igniter.

  2025 CALIFORNIA REFERENCED STANDARDS CODE 37

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE

  2.2. Burner output verification. The gas supply to the burner shall be the same as used for testing.

  1. Without a test specimen in the apparatus, place the gas burner in the configuration to be used for testing and obtain a heat release rate value of 150 kW.

  2. Take measurements at least once every 6 seconds and start 1 minute prior to ignition of the burner. Determine the average heat output over a period of at least 1 minute by the oxygen consumption method, or calculate the heat output from the gas mass flow and the net heat of combustion.

  3. Perform verification prior to each day of testing.

  FIGURE 1 — TEST FIGURE SCHEMATIC

  FIGURE 2 — GAS BURNER IGNITION SOURCE

  12-7A-1.7 Test assembly.

  1. Dimensions. The test specimen's dimensions shall be 4 feet wide by 8 feet high (1220 mm by 2440 mm). The test specimen shall be representative of the end-use wall assembly except as specified in Items 3 and 4. The test specimen shall be mounted in the steel frame holding fixture assembly as shown in Figure 1.
  2. Joint details. The test specimen shall incorporate joint detail(s) representative of actual installation.
  3. Wall assemblies without internal cavity spaces. For wall assemblies without internal cavity spaces, the entire wall assembly shall constitute the test specimen to be tested. The wall assembly shall be constructed in accordance with manufacturer’s

  38 2025 CALIFORNIA REFERENCED STANDARDS CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE

  specifications and/or building code requirements, where applicable. Other components of the wall assembly, such as building felt and sheathing, are employed to conform to the manufacturer’s specifications and/or building codes. 4. Wall assemblies with internal cavity spaces. For wall assemblies with internal cavity spaces, the materials on what would be considered the interior (unexposed) side of the wall assembly shall be omitted from the test specimen.

• CRSC § 1224.34.2.4 Medium relevance — show source text

  1224.34.2.4 Waiting. Waiting areas shall be provided out of traffic, under staff control. If the department is routinely used for outpatients and inpatients at the same time, separate waiting areas shall be provided with screening or visual privacy between the waiting areas.

  1224.34.2.5 Dose administration area. Provide a dose administration area that is immediately accessible to the preparation area. Since as much as several hours may elapse for the dose to take effect, the area shall provide for visual privacy from other

  areas.

  1224.34.2.6 Pre-procedure/holding area. A pre-procedure/holding area for patients on gurneys or beds shall be provided out of traffic and under control of staff and may be combined with the dose administration area with visual privacy between the areas.

  1224.34.2.7 Patient dressing rooms. Patient dressing rooms shall be immediately accessible to the waiting area and procedure rooms. Each dressing room shall include a seat or bench, a mirror, and provisions for hanging patients’ clothing and for securing valuables.

  1224.34.2.8 Patient toilet room(s). Patient toilet rooms shall be reserved for nuclear medicine patients and shall be immediately accessible to waiting and procedure rooms.

  1224.34.2.9 Staff toilet rooms. Staff toilet rooms shall be readily accessible to the nuclear medicine laboratory.

  1224.34.2.10 Handwashing stations. Handwashing stations shall be located within each procedure room.

  1224.34.2.11 Control desk and reception.

  1224.34.2.12 Storage area for clean linen.

  1224.34.2.13 Soiled and contaminated material. Provisions with handwashing stations shall be made for holding soiled mate- rial. Separate provisions shall be made for holding contaminated material.

  1224.34.2.14 Hot lab for scintigraphy (gamma camera), PET and SPECT facilities. A securable area or room shall be provided in which radiopharmaceuticals can be safely stored and doses can be calculated and prepared. 1. A single hot lab shall be permitted to serve multiple scanners and nuclear medicine modalities. 2. The hot lab shall be shielded in compliance with Section 1224.34.1.1. 3. A source storage area, a dose area and a storage area for syringe shields shall be provided.

  1224.34.3 Radiotherapy service space.

  1224.34.3.1 Radiation therapy space. If radiation therapy is provided, the following shall be accommodated: 1. Patient reception and waiting areas. 2. Space for medical and physics staff functions. 3. Space for equipment and supplies. 4. Housekeeping room. 5. Direct access to space provided for radiation measurement and calibration equipment, including a calibration constancy instrument and access to a secondary standard dose meter.

  12-54 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  INTERIOR ENVIRONMENT

  5.1. A megavoltage treatment unit capable of delivering x-rays or gamma rays of effective energy 500 KeV or more and conforming to the requirements of Chapter 31C and the California Radiation Control Regulations, Califor- _nia Code of Regulations,

• CRSC § 9.5 Medium relevance — show source text

  2. The specimen shall be suspended vertically with its lower edge 2 inches (51 mm) above the top of a [3] / 8 inch (9.5 mm) diameter Bunsen Burner. The test shall be performed in a draft-free area.

  3. The flames from the burner shall be 4 inches (101 mm) long and shall be adjusted with sufficient air supply to eliminate any yellow flame tips but without any distinct inner blue cone.

  4. The specimen shall be exposed to the flame at each corner and at not less than one other point along the lower edge. Each exposure shall be of sufficient duration to determine if the material will ignite and continue to burn, but shall be not less than 20 seconds.

  5. The criteria for acceptance shall be as follows: (A) There shall be not more than intermittent flaming appreciably beyond the area exposed to the test flame. (B) Flame shall not reach the top of the specimen. (C) On removing the test flame there shall be not more than 1 second of after flaming except there may be nonprogressive flaming of short duration in areas of accumulated char which were directly exposed to the test flame.

  Section 12-7-502

  (a) Framed rigid combustible decorative material. Rigid combustible decorative material and assemblies of materials not more than [1] / 4 inch (6 mm) in thickness used for folding doors, room dividers, decorative screens and similar applications, and which are installed with all edges protected, shall conform to the following:

  1. All exposed edges shall be protected with frames of metal or other noncombustible material, or solid wood of minimum [1] / 4 inch (6 mm) dimension.

  2. The total square foot area of the material shall not exceed ten percent of that of the floor area of the room in which the material is installed.

  3. When tested as follows, flames shall not reach the top edge of the specimen. The test shall be conducted in a draft free area, on a specimen of the material 12 inches by 12 inches (305 mm by 305 mm) suspended at a 45-degree angle from the horizontal with the upper and lower edges in a horizontal plane. The test flame shall be 3 inches (76 mm) long from a Bunsen burner of approximately [1] / 2 -inch (13 mm) inside diameter with the air supply completely shut off. The burner shall be positioned so that its top is 1 inch (25 mm) vertically below a point on the lower surface of the test specimen, 1 inch (25 mm) up from its lower horizontal edge and midway between the inclined edges. The exposure to the test flame and the duration of test shall be for a period of 2 minutes.

  2025 CALIFORNIA REFERENCED STANDARDS CODE 35

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  36 2025 CALIFORNIA REFERENCED STANDARDS CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  12-7A MATERIALS AND CONSTRUCTION METHODS

  FOR EXTERIOR WILDFIRE EXPOSURE

  EXTERIOR WALL SIDING AND SHEATHING

  SFM STANDARD 12-7A-1

  12-7A-1.1 Application. The minimum design, construction and performance standards set forth herein for exterior wall siding and sheathing are those deemed necessary to establish conformance to the provisions of these regulations. Materials and assemblies that meet the performance criteria of this standard are acceptable for use as defined in California Building Standards Code.

• CRSC § 1.11. Medium relevance — show source text

  CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

  CHAPTER 31C – RADIATION

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

  Adopting agency	BSC	BSC- CG	SFM	HCD	Col6	Col7	DSA	Col9	Col10	OSHPD	Col12	Col13	Col14	Col15	Col16	Col17	BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
  Adopting agency	BSC	BSC- CG	SFM	1	2	1/AC	AC	SS	SS/CC	1	1R	2	3	4	5	6	6	6	6	6	6	6	6	6
  Adopt entire chapter																		X
  Adopt entire chapter as amended (amended sections listed below)
  Adopt only those sections that are listed below
  Chapter / Section

  The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

  2025 CALIFORNIA BUILDING CODE 31C-1

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  31C-2 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  31C [DPH] RADIATION

  SECTION 3101C—SCOPE

  For the purpose of this chapter, the following terms shall have the meaning indicated:

  PRIMARY PROTECTIVE BARRIER is a barrier to attenuate the useful beam.

  SECONDARY PROTECTIVE BARRIER is a barrier to attenuate stray radiation.

  STRAY RADIATION is radiation not serving any useful purpose, which includes leakage and scattered radiation.

  USEFUL BEAM is the radiation which passes through the window, aperture, cone or other collimating device of the tube housing.

  SECTION 3102C—RADIATION SHIELDING BARRIERS

  All radiation shielding barriers in rooms and enclosures housing machines shall meet the requirements of Section 12-31C-101, Chapter 12-31C, Part 12, California Referenced Standards Code. The Department of Health Services is the only agency that may grant a variance or exception to these standards.

  SECTION 3103C—MEDICAL RADIOGRAPHIC AND PHOTOFLUOROGRAPHIC INSTALLATIONS

• CRSC § 4.4.2 Medium relevance — show source text

  All other measurement details shall be followed as specified in Sections 4.4.2, 4.4.3 and 4.4.4 of ASTM E108. Although ASTM E108 specifies calibration to be conducted with the 33-inch (840-mm) framework spacing used for the intermittent flame test set up, tests have shown that at the nominal 12 mph

  46 2025 CALIFORNIA REFERENCED STANDARDS CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE

  setting, there was not difference in measured velocity between the 33- and 60-inch (838 mm and 1524 mm) framework spacing. 3.2. Mount the test specimen at a zero horizontal incline positioned 60 inches (1.5 m) from the front opening of the wind tunnel.

  3.3. Ignite the “A” brands as specified in Section 9.4 of ASTM E108 as reprinted here:

  1. Each 12- x 12-inch (300 x 300 mm) face for 30 seconds.
  2. Each 2.25- x 12-inch (57 x 300 mm) edge for 45 seconds.
  3. Each 12- x 12-inch (300 x 300 mm) face again for 30 seconds. 3.4. Center the burning brand laterally on the deck with the front edge 2.5 inches (64 mm) from the entering air edge of the deck.

  3.5. Continue the exposure for a 40-minute period or until all combustion of the deck boards ceases. The test shall be terminated immediately if flaming combustion accelerates uncontrollably (runaway combustion) or structural failure of any deck board occurs. Heat Release Rate is not monitored because of the impracticability with the specified airflow. 4. Observations. Note physical changes of the deck boards during the test, including deformation from the horizontal plane, location of flaming and glowing combustion, and loss of material (i.e., flaming drops of particles falling from the deck). It is desirable to capture the entire test with a video recorder to allow review of the details of performance.

  12-7A-4.8.4 Report. The report shall include description of the deck board material, and the time of any degradation (accelerated combustion, board collapse, flaming drops or particles falling from the deck).

  12-7A-4.8.5 Conditions of Acceptance. Should one of the three replicates fail to meet the Conditions of Acceptance, three additional tests may be run. All of the additional tests must meet the Conditions of Acceptance:

  1. Absence of sustained flaming or glowing combustion of any kind at the conclusion of the 40-minute observation period.
  2. Absence of falling particles that are still burning when reaching the burner or floor.

  FIGURE 1 — DECK TEST ASSEMBLY (UNDER DECK-FLAME)

  FIGURE 2 — DECK TEST ASSEMBLY (BURNING-BRAND)

  2025 CALIFORNIA REFERENCED STANDARDS CODE 47

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  MATERIALS AND CONSTRUCTION METHODS FOR EXTERIOR WILDFIRE EXPOSURE

  DECKING ALTERNATE METHOD A

  SFM STANDARD 12-7A-4A

• CRSC § 568-3800 Medium relevance — show source text

  (916) 568-3800 Fire & Life Safety

  State Lands Commission [SLC]

  slc.ca.gov MOTEMS.Public@slc.ca.gov (510) 741-4950 Marine Oil Terminals

  State Librarian [SL]

  library.ca.gov csllaw@library.ca.gov (916) 323-9843 Public Library Construction & Renovation

  2025 CALIFORNIA REFERENCED STANDARDS CODE v

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  HOW TO DETERMINE WHERE CHANGES HAVE BEEN MADE

  Symbols in the margins indicate where changes have been made or language has been deleted.

  This symbol indicates that a change has been made.

  • This symbol indicates deletion of language.

  vi 2025 CALIFORNIA REFERENCED STANDARDS CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  CONTENTS

  CHAPTER 12-1 ADMINISTRATION

  RESERVED . . . . . . . . . . . . . . . . . . . . . . . . . . 1

  CHAPTER 12-3 RELEASING SYSTEMS FOR SECURITY

  BARS IN DWELLINGS. . . . . . . . . . . . . . . . . . 3

  CHAPTER 12-4A LABORATORY ANIMAL

  QUARTERS STANDARDS. . . . . . . . . . . . . . . 9

  CHAPTER 12-4-1 STAGE AND PLATFORMS . . . . . . . . . . . . . 11

  CHAPTER 12-7-1 FIRE-RESISTIVE STANDARDS. . . . . . . . . . 13

  CHAPTER 12-7-2 FIRE-RESISTIVE STANDARDS

  RESERVED . . . . . . . . . . . . . . . . . . . . . . . . . 23

  CHAPTER 12-7-3 FIRE-RESISTIVE STANDARDS. . . . . . . . . . 25

  CHAPTER 12-7-4 FIRE-RESISTIVE STANDARDS. . . . . . . . . . 31

  CHAPTER 12-7-5 FIRE-RESISTIVE STANDARDS. . . . . . . . . . 35

  CHAPTER 12-7A MATERIALS AND CONSTRUCTION

  METHODS FOR EXTERIOR WILDFIRE

  EXPOSURE . . . . . . . . . . . . . . . . . . . . . . . . . 37

  CHAPTER 12-8-1 FIRE-RESISTIVE STANDARDS FOR

  FIRE PROTECTION . . . . . . . . . . . . . . . . . . 51

  APPENDIX 12-8-1A CALCULATION OF THE TOTAL RATE

  OF HEAT AND CARBON MONOXIDE OR

  CARBON DIOXIDE PRODUCTION . . . . . . . 63

  APPENDIX 12-8-1B GUIDE TO MOUNTING TECHNIQUES FOR

  WALL AND CEILING INTERIOR FINISH

• CRSC § 3103C.1 Medium relevance — show source text

  SECTION 3103C—MEDICAL RADIOGRAPHIC AND PHOTOFLUOROGRAPHIC INSTALLATIONS

  3103C.1 Operator station. The operator’s station at the control shall be behind a protective barrier either in a separate room, in a protected booth or behind a shield which will intercept the useful beam and any radiation which has been scattered only once.

  3103C.2 Patient observation and communication. Provision shall be made for the operator to observe and communicate with the patient without leaving the shielded position at the control panel. When an observation window is used, it must provide radiation atten- uation equal to that required in the surrounding barrier.

  SECTION 3104C—MEDICAL THERAPEUTIC X-RAY INSTALLATIONS

  3104C.1 General. All wall, floor and ceiling areas that can be struck by the useful beam, plus a border of 1 foot (305 mm), shall be provided with primary protective barriers.

  3104C.2 Equipment operating above 50 kVp. Equipment operating above 50 kVp shall conform with the following: 1. The control station shielding shall either be an integral part of the building or anchored to the building. 2. The control station shall be provided with a window having radiation attenuation equal to that required by the adjacent barrier, or a mirror system, or a closed-circuit television viewing screen. The patient area must be visible to the operator with- out having to leave the protected area during exposure.

  3104C.3 Equipment operating above 150 kVp. Equipment operating above 150 kVp shall conform to the following: 1. The treatment room shall be provided with interlocks so that when any door of the treatment room is opened, either the machine will shut off automatically or the radiation level within the room will be reduced to an average of not more than 2 milliroentgens per hour and a maximum of 10 milliroentgens per hour at a distance of one meter in any direction from the target. After such shutoff or reduction in output, it shall be possible to restore the machine to full operation only from the control panel. 2. The control station shall be within a protective booth or in an adjacent room.

  3104C.4 A minimum of one door shall be provided with an auxiliary means for being opened in case of power failure or mechanical breakdown, where large power-driven doors offer the only access to the room.

  3104C.5 A flashing red warning signal light energized only when the useful beam is on shall be located adjacent to the entrance(s) to a therapy room with equipment capable of operating above 500 kVp.

  2025 CALIFORNIA BUILDING CODE 31C-3

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  31C-4 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

  CHAPTER 31D – FOOD ESTABLISHMENTS

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)