CRSC · California Referenced Standards Code

Product performance, uniformity and durability criteria

This hub summarizes the CRSC criteria and key sections that govern product performance, uniformity and durability, including testing, certification and recertification.

Last reviewed: July 6, 2026

Overview

This part of the California Referenced Standards Code (CRSC) sets out measurable performance, uniformity and durability requirements for specified building products — for example, detectable warning products, directional surfaces and categories of insulating material — and the certification, testing and recertification processes that demonstrate compliance. The rules require objective test methods, labeling and certification statements, and define durability thresholds (for detectable warning products a “significant degradation” threshold is established) so products remain safe and fit-for-use over time; see §§ 12‑11A.209 / 12‑11B.209 and §§ 12‑11A.210 / 12‑11B.210 for those uniformity and degradation rules .

The CRSC also prescribes how testing and quality assurance are organized: independent evaluation by an approved entity for certain accessibility products, periodic recertification (for example a two‑year cycle), and detailed test and sampling protocols for insulating materials (conditioning, R‑value reporting, grouping rules and aging/test intervals are specified in the insulating‑materials article). See §§ 12‑11A.205–.206 and the insulating material provisions in Article 3 (Sec. 12‑13‑1551 and Sec. 12‑13‑1553) for the governing procedures and test requirements .

In this section

Code references

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

  • CRSC § 12-11 High relevance — show source text

    DETECTABLE WARNING PRODUCTS

    Sections 12-11A.203 and 12-11B.203. Must comply with the California Code of Regulations, Title 24.

    DIRECTIONAL SURFACES

    Sections 12-11A.204 and 12-11B.204. Must comply with the California Code of Regulations, Title 24.

    INDEPENDENT ENTITY

    Sections 12-11A.205 and 12-11B.205. Evaluation by an independent entity to confirm the prescriptive and performance standard of detectable warning products or direction surfaces installed after January 1, 2001. An independent entity is a not-for-profit product safety testing and certification organization, dedicated to testing for public safety. An independent entity would operate for the testing, certification and quality assessment of products, systems and services.

    TWO-YEAR APPROVAL

    Sections 12-11A.206 and 12-11B.206. Detectable warning products and directional surfaces are to be recertified every two years without exception or waiver.

    FEE

    Sections 12-11A.207 and 12-11B.207. The Division of the State Architect-Access Compliance may impose a fee on manufacturers of the specified products, to cover the cost of detectable warning products and directional surfaces.

    DISABILITY ACCESS ACCOUNT

    Sections 12-11A.208 and 12-11B.208. The fees received from manufacturers will be placed in the Disability Access Account.

    DETECTABLE WARNING PRODUCTS AND DIRECTIONAL SURFACES

    Sections 12-11A.209 and 12-11B.209. Detectable Warning Products and Directional Surfaces must ensure consistency and uniformity: (a) Shape, (b) Color fastness,

    (c) Conformation, (d) Sound-on-cane acoustic quality, (e) Resilience, and (f) Attachment will not degrade significantly for at least five years.

    SIGNIFICANT DEGRADATION

    Sections 12-11A.210 and 12-11B.210. Significant degradation means that the product maintains at least 90 percent of its approved design characteristics.

    SELECTION OF INDEPENDENT ENTITY

    Sections 12-11A.211 and 12-11B.211. The independent entity selected by the Division of the State Architect-Access Compliance shall be recognized as having appropriate expertise in determining whether products comply with the California Code of Regulations, Title 24.

    Authority: Government Code Sections 4450, 4460 and Health & Safety Code Section 18949.1.

    Reference: Government Code Section 4460.

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    12-13 STANDARDS FOR INSULATING MATERIAL

    (See Part 6, Title 24, CCR)

    DEPARTMENT OF CONSUMER AFFAIRS

    Bureau of Household Goods and Services

  • CRSC § 8-10 Medium relevance — show source text

    (o) “Urea formaldehyde foam” means a cellular plastic insulation material generated in a continuous stream by mixing the components which are a urea formaldehyde resin, air and a foaming agent.

    Authority: Sections 25920 and 25922, Public Resources Code.

    Reference: Sections 25915 (a), 25920, 25921 and 25922, Public Resources Code.

    HISTORY:

    1. Amendment filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).

    QUALITY STANDARDS

    Sec. 12-13-1553. The manufacturer shall cause the testing of samples of insulating material for conformity with the quality standards described in this section.

    (a) General testing provisions. In testing any material pursuant to this section, the following general procedures shall be used.

    1. All tests with the exception of the ANSI/ASTM E84-79 test shall be conducted using representative samples at the representative thickness of the insulation, except that when the final use of an insulating material entails a thickness less than the representative thickness, then the insulating material will be tested at the lesser thickness.

    2. Where uniformity of product ensures consistency of test results across a product grouping, test results for one may be used for certification of other products within that product group. The manufacturer shall provide sufficient documentation to establish a valid basis for applying a particular test result to other products within the group. The Executive Director shall determine whether a valid basis exists for grouping products for testing pursuant to this subsection. If it is determined that a valid basis does not exist, individual tests shall be required. A manufacturer may appeal the Executive Director’s determination to the full Commission.

    3. Thermal performance of building insulations shall be stated in R value. Other insulations shall use thermal conductivity, conductance or R value as appropriate.

    4. All thermal performance tests shall be conducted on materials which have been conditioned at 73.4° ± 3.6°F and a relative humidity of 50 ± 5 percent for 24 hours immediately preceding the tests. The average testing temperature shall be 75° ± 2°F with at least a 40°F (4°C) temperature difference.

    5. Aluminum foil insulation shall be tested according to ANSI/ASTM C236-66 to determine the thermal performance in horizontal, upward and downward directions. The tested thermal performance in the heat-flow direction or directions of the intended application shall be labeled on the material. The manufacturer shall test once in each direction of intended application, except that for products labeled with only one heat-flow direction, the manufacturer shall test two samples in that direction.

    6. Insulation (other than aluminum foil insulation materials) for which additional value is claimed for facings and air spaces shall be tested for thermal performance as a material without the air space pursuant to this article. The manufacturer may elect to report additional thermal performance values of a given construction tested according to ANSI/ASTM C236-66 for that construction as long as full details of that construction are also disclosed in the certification statement and pursuant to Section 1557 (c) of this article. If a manufacturer elects to report a thermal performance value for a material plus an air space (as supplemental information to the required material thermal performance), but not necessarily for a full construction, the manufacturer must also disclose the conditions of the test and the limitations to the attainment of that result.

  • CRSC § 8-10 Medium relevance — show source text

    (g) “Insulating material” or “insulation” means any material listed in Section 1551 (b) of this article and placed within or contiguous to a wall, ceiling, roof or floor of a room or building, or contiguous to the surface of any appliance or its intake or outtake mechanism, for the purpose of reducing heat transfer or reducing adverse temperature fluctuations of the building room or appliance.

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    STANDARDS FOR INSULATING MATERIAL

    (h) “Manufacturer” means any person who either:

    1. Produces insulating material in the final composition either for use in the form sold or to be further dimensionally modified; or
    2. In the case of polyurethane, polyisocyanurate and urea formaldehyde foam formed at the installation site, produces the primary components of the material.

    “Manufacturer” shall not include any building contractor or any other person whose sole activity is to install insulation at the installation site.

    (i) “Quality assurance program.” (Reserved)

    (j) “Recommended wall density” means the density used for pressure fill retrofit wall applications to prevent settling.

    (k) “Representative sample” means a sample of insulating material with the same characteristics (other than thickness) and using the same facing imposed on the insulating material manufactured for final use.

    (l) “Representative thickness” means a thickness of insulating material at which the change in thermal performance per inch will vary no more than plus or minus 2 percent with increases in thickness.

    (m) “TAPPI” means Technical Association of Pulp and Paper Industry.

    (n) “Thermal performance” means the tested thermal conductivity, thermal conductance or thermal resistance ( R -value), as appropriate, of an insulating material.

    (o) “Urea formaldehyde foam” means a cellular plastic insulation material generated in a continuous stream by mixing the components which are a urea formaldehyde resin, air and a foaming agent.

    Authority: Sections 25920 and 25922, Public Resources Code.

    Reference: Sections 25915 (a), 25920, 25921 and 25922, Public Resources Code.

    HISTORY:

    1. Amendment filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).

    QUALITY STANDARDS

    Sec. 12-13-1553. The manufacturer shall cause the testing of samples of insulating material for conformity with the quality standards described in this section.

    (a) General testing provisions. In testing any material pursuant to this section, the following general procedures shall be used.

    1. All tests with the exception of the ANSI/ASTM E84-79 test shall be conducted using representative samples at the representative thickness of the insulation, except that when the final use of an insulating material entails a thickness less than the representative thickness, then the insulating material will be tested at the lesser thickness.
    2. Where uniformity of product ensures consistency of test results across a product grouping, test results for one may be used for certification of other products within that product group. The manufacturer shall provide sufficient documentation to establish a valid basis for applying a particular test result to other products within the group. The Executive Director shall determine whether a valid basis exists for grouping products for testing pursuant to this subsection. If it is determined that a valid basis does not exist, individual tests shall be required.
  • CRSC § 3.5 Medium relevance — show source text

    Flame spread . . . . . . . . . . . . . . . . . . . . 75 Smoke developed . . . . . . . . . . . . . . . .450 Exception: Polystyrene foam insulation boards with a maximum thickness of 2 inches (51 mm) when installed below a minimum 3.5-inch-thick (89 mm) concrete slab on grade.

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    STANDARDS FOR INSULATING MATERIAL

    B. This subsection shall not apply to any product recognized by the International Conference of Building Officials, as of the date of adoption of these regulations, as complying with Sections 2602.1-2602.6 of the 1994 Uniform Building Code based solely upon diversified testing. The manufacturer of any product which is recognized by the International Conference of Building Officials, subsequent to the date of approval of these regulations, as complying with Sections 2602.1-2602.6 of the 1994 Uniform Building Code based solely upon diversified testing, may petition the Commission for an exemption of that product from the provisions of this subsection. 4. Dimensional stability. All foamed polystyrene insulation materials which are factory formed shall be tested for dimensional stability in accordance with Procedures E and G of ASTM D2126-75 with the following exceptions: (a) sample size shall be 12 inches by 12 inches (305 mm by 305 mm) ± 1 inch (25 mm), and (b) samples shall be tested as manufactured with or without facers.

    The average percent change in length or width shall not exceed ± 2 percent in 24 hours or ± 4 percent in 7 days. The average percent change in thickness shall not exceed ± 10 percent in 7 days. Samples shall be regarded as failing if: (1) delamination area of “faced” samples exceeds 25 percent or (2) warping or cupping exceeds [1] / 4 inch (6 mm) when checked by a straight edge across raised diagonal corners.

    (l) Polyurethane and polyisocyanurate in board form and field applied.

    1. Composition. The manufacture of the insulation shall be based mainly on the reaction of an organic polyisocyanate with a polyol resin.

    Board shall be of uniform texture, reasonably free from accumulation of unexpanded material and foreign inclusions, and reasonably free of broken edges and corners. It shall be reasonably free from holes, voids, depressions and objectionable odor. Laminated composite boards shall be included in this quality standard. The faces of laminated boards shall adhere firmly throughout to the foam, and shall show no excessive amounts of slits, voids or depressions. 2. Thermal performance. Determination of the thermal performance shall be in accordance with ANSI/ASTM C177-76, ANSI/ASTM C236-66 or ANSI/ASTM C518-76 at the manufacturer’s option.

  • CRSC § 9.5 Medium relevance — show source text
    1. 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.

    2. 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.

    3. 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.

    4. 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.

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    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 § 39966-39973. Medium relevance — show source text

    (e) Cellulose fiber spray applied.

    1. Composition. The basic material shall consist of virgin or recycled wood-based cellulosic fiber and may be made from related paper or paperboard stock, excluding contaminated materials and extraneous foreign materials such as metals and glass which may reasonably be expected to be retained in the finished product. Suitable chemicals may be introduced to improve flame resistance, processing, adhesive and cohesive qualities, and handling characteristics. The added chemicals shall not create a health hazard.

    The basic material shall be processed into a form suitable for installation by pneumatic conveying equipment and simultaneous mixing with water and/or adhesive at the spray nozzle. 2. Thermal performance. Determination of the thermal performance shall be in accordance with ANSI/ASTM C177-76, ANSI/ASTM C236-66 or ANSI/ASTM C518-76 at the manufacturer’s option. 3. Resistance to combustion. Flammability characteristics shall comply with the standard for flammability and smoldering combustion in 44 Fed. Reg. pages 39966-39973. 4. Corrosiveness. The product shall comply with the standard for corrosiveness set forth in 44 Fed. Reg. pages 39966-39973. 5. Bond strength. The bond strength shall be determined by Test Description Number 3 and the bond shall support a force five times the weight of the sample for 1 minute. 6. Bond deflection. The bond deflection shall be determined by Test Description Number 4 and shall be greater than [1] / 60 th of the length of the sample. 7. Air erosion. The air erosion shall be determined by Test Description Number 5 and shall withstand an air velocity of 800 ft/min. 8. Odor emission. Odor emissions shall be determined by Test Description Number 1. A detectable odor of objectionable nature observed by two or more panel members shall be cause for rejection. 9. Fungi resistance. Resistance to fungi shall be determined according to Method 508 of the March 10, 1975, edition of the Military Standard for Environmental Test Methods known as MIL-STD-810C, except the spore suspensions shall be prepared using distilled water, and observations shall be made at 7-day intervals during the 28-day cycle to determine the minimum length of time required for fungal growth to appear. Viability of the spore organisms shall be determined by injecting or inoculating a separate bottle of culture medium with the spore preparation for each organism and observing for growth and individual viability. The back side of [1] / 2 -inch (13 mm) standard commercial grade gypsum wall board grayback paper surface shall be used as the control. After the test exposure, the test samples shall be examined at 40 times magnification for evidence of fungal growth. The material shall show no more fungal growth than the control material. 10. Test procedures described in Items 5, 6 and 7 are not required of products which are installed in such a manner that physical restrictions imposed by the construction elements preclude any possibility of subsequent delamination, erosion or dusting and the product is identified only for such installations. (f) Mineral aggregate in board form.

    1. Composition. The basic material shall be mineral in nature, crushed, dried and graded to the proper particle size and expanded by the application of heat to form a spherical, cellular type of aggregate. It shall be composed of spherical cellular beads of expanded aggregate and fibers formed into rigid, flat, rectangular units and shall have an integral water proofing
  • CRSC § 2602.1 Medium relevance — show source text
    1. Resistance to combustion.

    A. The material shall be tested to meet the requirements of Sections 2602.1-2602.6 of the 1994 Uniform Building Code, with the additional provision that the surface-burning characteristics shall be determined according to ANSI/ASTM E84-79 and shall not exceed the following values:

    Flame spread . . . . . . . . . . . . . . . . . . . . . 75 Smoke developed . . . . . . . . . . . . . . . . 450 B. This subsection shall not apply to any product recognized by the International Conference of Building Officials, as of the date of adoption of this article, as complying with Sections 2602.1-2602.6 of the 1994 Uniform Building Code based solely upon diversified testing. The manufacturer of any product which is recognized by the International Conference of Building Officials, subsequent to the date of approval of these regulations, as complying with Sections 2602.12602.6 of the 1994 Uniform Building Code based solely upon diversified testing, may petition the Commission for an exemption of that product from the provisions of this subsection. 5. Identification. Foam containers shall state the conditions of proper storage.

    (m) Urea formaldehyde foam field applied.

    1. Limitation on sale. Urea formaldehyde foam is unsafe for use as insulation. Sale within the State of California of urea formaldehyde foam insulation is prohibited.

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    STANDARDS FOR INSULATING MATERIAL

    1. Exemption. Notwithstanding any other provision of this article, a manufacturer of the primary components of urea formaldehyde foam insulation may apply for certification as provided in Section 1555 of this article. Such certification statement shall indicate compliance with the following standards: A. Composition. The material shall consist of cellular plastic generated in a continuous stream by mixing the components which are a urea formaldehyde resin, air and a foaming agent. The material shall be suitable for filling closed cavities through small holes and suitable also for filling open cavities by trowelling during foaming prior to enclosure. B. Thermal performance. The effective thermal performance, incorporating a derating value, shall be determined according to the method described in 42 Fed. Reg. pages 55143-55148. C. Resistance to combustion. Surface-burning characteristics shall be determined according to the ANSI/ASTM E84-79 and shall not exceed the following values:

    Flame spread . . . . . . . . . . . . . . . . . . . . 25 Smoke developed . . . . . . . . . . . . . . . .450 Test specimens shall be aged for 45 days at 70°F ± 5°F and 35 to 40 percent relative humidity before testing. D. Free formaldehyde content of dry foam. The free formaldehyde content of the dry foam shall be less than 0.01 percent formaldehyde by weight when tested as specified in paragraph (f) (8), published in 45 Fed. Reg.

  • CRSC § 803.5.1.1 Medium relevance — show source text

    803.5.1.1 Acceptance criteria for NFPA 265 Method B test protocol. Where testing to NFPA 265, the interior finish shall comply with the following:

    1. During the 40-kW exposure, flames shall not spread to the ceiling.
    2. The flame shall not spread to the outer extremities of the samples on the 8-foot by 12-foot (203 by 305 mm) walls.
    3. Flashover, as defined in NFPA 265, shall not occur.
    4. For newly introduced wall coverings, the total smoke released throughout the test shall not exceed 1,000 m [2] .

    803.5.1.2 Unframed rigid combustible decorative material. Rigid combustible decorative material and assemblies of materials not more than [1] / 4 inch in thickness used for folding doors, room dividers, decorative screens and similar applications, which do not create concealed spaces and which are installed with exposed edges, shall be flame resistant in accordance with SFM Standard 12-7-5 contained in Title 24, Part 12, California Referenced Standards Code.

    803.5.1.3 Framed rigid combustible decorative material. Rigid combustible decorative material and assemblies of materials not more than [1] / 4 inch in thickness used for folding doors, room dividers, decorative screens and similar applications, and which are installed with all edges protected, shall conform to SFM Standard 12-7-5 contained in Title 24, Part 12, California Referenced Standards Code.

    803.5.2 Acceptance criteria for wall and ceiling coverings. Textile wall and ceiling coverings shall have a Class A flame spread index in accordance with ASTM E84 or UL 723, and be protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2. Test specimen preparation and mounting shall be in accordance with ASTM E2404.

    803.6 Textile ceiling coverings. Where used as interior ceiling finish materials, textile ceiling coverings, including materials having a woven, nonwoven, napped, tufted, looped or similar surface and carpet or similar textile materials, shall be tested in the manner intended for use, using the product mounting system, including adhesive, and shall comply with the requirements of Section 803.1.1 or 803.5.2.

    803.7 Expanded vinyl wall coverings. Where used as interior wall finish materials, expanded vinyl wall coverings shall be tested in the manner intended for use, using the product mounting system, including adhesive, and shall comply with the requirements of Section 803.1.1, 803.5.1 or 803.5.2.

    803.8 Expanded vinyl ceiling coverings. Where used as interior ceiling finish materials, expanded vinyl ceiling coverings shall be tested in the manner intended for use, using the product mounting system, including adhesive, and shall comply with the requirements of Section 803.1.1 or 803.5.2.

    [BF] 803.9 High-density polyethylene (HDPE) and polypropylene (PP). Where high-density polyethylene or polypropylene is used as an interior finish, it shall comply with Section 803.1.1.

  • CRSC § 73.4 Medium relevance — show source text
    1. Thermal performance. Determination of the thermal performance shall be in accordance with ANSI/ASTM C177-76, ANSI/ASTM C236-66 or ANSI/ASTM C518-76 at the manufacturer’s option. All foam insulation materials using materials other than air or pentane as an expanding agent shall either separately condition samples at 73.4° ± 3.6°F and a relative humidity of 50 ± 5 percent, and at 140°F dry heat and test at 30-, 60- and 90-day intervals or shall test samples certified by an approved testing laboratory to have been aged while exposed to free air in a well ventilated room for at least two years at 70° ± 10°F, provided, however, that until 2 [1] / 2 years after the adoption of these quality standards by the Commission, test samples may be aged for six months for certification of the material. Notwithstanding any other provision of this article, this thermal performance standard shall not take effect until 250 days after adoption. If the certification statement submitted pursuant to Section 1555 of this article does not include test results for thermal performance, the manufacturer shall submit a new certification statement which includes such test results prior to 250 days after adoption. If the latest certification statement is based on the six-month aging test, a new statement, based upon the two-year aging test or the accelerated aging test shall be submitted by 2 [1] / 2 years after the adoption date.
    2. A. Resistance to combustion. The material shall be tested to meet the requirements of Sections 2603.2 and 2603.3 of the California Building Code, with the additional provision that the surface-burning characteristics shall be determined according to ANSI/ASTM E84-79 and shall not exceed the following values:

    Flame spread . . . . . . . . . . . . . . . . . . . . 75 Smoke developed . . . . . . . . . . . . . . . .450 Exception: Polystyrene foam insulation boards with a maximum thickness of 2 inches (51 mm) when installed below a minimum 3.5-inch-thick (89 mm) concrete slab on grade.

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    STANDARDS FOR INSULATING MATERIAL

    B. This subsection shall not apply to any product recognized by the International Conference of Building Officials, as of the date of adoption of these regulations, as complying with Sections 2602.1-2602.6 of the 1994 Uniform Building Code based solely upon diversified testing. The manufacturer of any product which is recognized by the International Conference of Building Officials, subsequent to the date of approval of these regulations, as complying with Sections 2602.1-2602.6 of the 1994 Uniform Building Code based solely upon diversified testing, may petition the Commission for an exemption of that product from the provisions of this subsection. 4. Dimensional stability. All foamed polystyrene insulation materials which are factory formed shall be tested for dimensional stability in accordance with Procedures E and G of ASTM D2126-75 with the following exceptions: (a) sample size shall be 12 inches by 12 inches (305 mm by 305 mm) ± 1 inch (25 mm), and (b) samples shall be tested as manufactured with or without facers.

  • CRSC § 73.4 Medium relevance — show source text

    A manufacturer may appeal the Executive Director’s determination to the full Commission.

    1. Thermal performance of building insulations shall be stated in R value. Other insulations shall use thermal conductivity, conductance or R value as appropriate.

    2. All thermal performance tests shall be conducted on materials which have been conditioned at 73.4° ± 3.6°F and a relative humidity of 50 ± 5 percent for 24 hours immediately preceding the tests. The average testing temperature shall be 75° ± 2°F with at least a 40°F (4°C) temperature difference.

    3. Aluminum foil insulation shall be tested according to ANSI/ASTM C236-66 to determine the thermal performance in horizontal, upward and downward directions. The tested thermal performance in the heat-flow direction or directions of the intended application shall be labeled on the material. The manufacturer shall test once in each direction of intended application, except that for products labeled with only one heat-flow direction, the manufacturer shall test two samples in that direction.

    4. Insulation (other than aluminum foil insulation materials) for which additional value is claimed for facings and air spaces shall be tested for thermal performance as a material without the air space pursuant to this article. The manufacturer may elect to report additional thermal performance values of a given construction tested according to ANSI/ASTM C236-66 for that construction as long as full details of that construction are also disclosed in the certification statement and pursuant to Section 1557 (c) of this article. If a manufacturer elects to report a thermal performance value for a material plus an air space (as supplemental information to the required material thermal performance), but not necessarily for a full construction, the manufacturer must also disclose the conditions of the test and the limitations to the attainment of that result.

    5. Except as provided in Items 5 and 6, the thermal performance test results certified under Section 1555 of this article shall be the average of the values obtained from at least three tests.

    6. The average measured thermal performance of the tests required by Items 5, 6 and 7 shall not be more than 5 percent below the value specified on the product. In addition, all insulation material sold within the state after September 22, 1981, shall have a measured thermal performance not more than 10 percent below the value specified on the product.

    7. All numbered test descriptions shall be contained in the document “Test Descriptions for Insulating Material” dated February 27, 1981.

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    STANDARDS FOR INSULATING MATERIAL

    1. Facings on representative samples may be removed or modified by slitting for the ANSI/ASTM C177-76 and ANSI/ASTM C518-76 tests.

    2. All thermal performance testing equipment used for testing insulating materials shall be calibrated with samples referenced to the United States National Bureau of Standards.

    3. Manufacturers of loose fill insulations for which no settled density test is required by this section shall be required to include the installed design density in the identifying information described in Section 1557. The manufacturer shall provide sufficient documentation to establish a valid basis for the determination of installed design density. The Executive Director shall determine whether a valid basis exists for the installed design density claimed by the manufacturer. If it is determined that a valid basis does not exist, the director may assign an appropriate installed design density or may require an appropriate test to determine the installed design density. The manufacturer may appeal the Executive Director’s determination to the full Commission.

  • CRSC § 12-11 Medium relevance — show source text

    (c) Conformation, (d) Sound-on-cane acoustic quality, (e) Resilience, and (f) Attachment will not degrade significantly for at least five years.

    SIGNIFICANT DEGRADATION

    Sections 12-11A.210 and 12-11B.210. Significant degradation means that the product maintains at least 90 percent of its approved design characteristics.

    SELECTION OF INDEPENDENT ENTITY

    Sections 12-11A.211 and 12-11B.211. The independent entity selected by the Division of the State Architect-Access Compliance shall be recognized as having appropriate expertise in determining whether products comply with the California Code of Regulations, Title 24.

    Authority: Government Code Sections 4450, 4460 and Health & Safety Code Section 18949.1.

    Reference: Government Code Section 4460.

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

    12-13 STANDARDS FOR INSULATING MATERIAL

    (See Part 6, Title 24, CCR)

    DEPARTMENT OF CONSUMER AFFAIRS

    Bureau of Household Goods and Services

    ARTICLE 3. STANDARDS FOR INSULATING MATERIAL

    APPLICATION AND SCOPE

    Sec. 12-13-1551.

    (a) This article establishes standards governing the quality of insulation sold within the state after September 22, 1981, including those properties which affect the safety and thermal performance of insulation during application and in the use intended.

    (b) The provisions of this article shall apply only to the following types of insulating material:

    1. Aluminum foil (reflective foil);

    2. Cellular glass (board form);

    3. Cellulose fiber (loose fill and spray applied);

    4. Mineral aggregate (board form);

    5. Mineral fiber (blankets, board form, loose fill);

    6. Perlite (loose fill);

    7. Polystyrene (board form, molded and extruded);

    8. Polyurethane (board form and field applied);

    9. Polyisocyanurate (board form and field applied);

    10. Urea formaldehyde foam (field applied);

    11. Vermiculite (loose fill).

    (c) The provisions of this article shall apply to the sale of insulating material within the state. The provisions of this article shall not apply to insulating material manufactured in California, but sold outside the state, nor to insulating material manufactured outside California and sold wholesale in California for final retail sale outside the state. For the purpose of this article, the sale of a building or an appliance which contains installed insulating material is not considered the sale of the insulating material.

    (d) Any type of insulating material not listed in subsection (b) may be sold within California notwithstanding any other provision of this article.

    Authority: Sections 25920 and 25922, Public Resources Code.

    Reference: Sections 25910, 25920, 25921 and 25922, Public Resources Code.

  • CRSC § 71.4 Medium relevance — show source text

    reinforcement: verti-
    cal, four5/8″ rebars; horizontal,3/8″ ties at
    7″ pitch; cover: 11/2″.|71.4
    tons|2 hrs|||7|2, 7|2| |C-11-RC-20|11″|11″ square columns; gravel concrete (4530
    psi); reinforcement: vertical, four5/8″
    rebars; horizontal,3/8″ ties at 7″ pitch;
    cover: 11/2″ with1/2″ plaster.|58.8
    tons|2 hrs|||7|2, 3, 9|2| |C-11-RC-21|11″|11″ square columns; gravel concrete (3520
    psi); reinforcement: vertical, four5/8″
    rebars; horizontal,3/8″ ties at 7″ pitch;
    cover: 11/2″.|Vari-
    able|1 hr
    24 min|||7|1, 8|11/4| |C-11-RC-22|11″|11″ square columns; aggregate concrete
    (3710 psi); reinforcement: vertical, four5/8″
    rebars; horizontal,3/8″ ties at 7″ pitch;
    cover: 11/2″.|58.8
    tons|2 hrs|||7|2, 3,
    10|2| |C-11-RC-23|11″|11″ square columns; aggregate concrete
    (3190 psi); reinforcement: vertical, four5/8″
    rebars; horizontal,3/8″ ties at 7″ pitch;
    cover: 11/2″.|58.8
    tons|2 hrs|||7|2, 3,
    10|2| |C-11-RC-24|11″|11″ square columns; aggregate concrete
    (4860 psi); reinforcement: vertical, four
    5/8″ rebars; horizontal,3/8″ ties at 7″ pitch;
    cover: 11/2″.|86.1
    tons|1 hr
    20 min|||7|1|11/3| |C-11-RC-25|11″|11″ square columns; aggregate concrete
    (4850 psi); reinforcement: vertical, four 5/8″
    rebars; horizontal,3/8″ ties at 7″ pitch;
    cover: 11/2″.|58.8
    tons|1 hr
    59 min|||7|1|13/4| |C-11-RC-26|11″|11″ square columns; aggregate concrete
    (3834 psi); reinforcement: vertical, four 5/8″
    rebars; horizontal,5/16″ ties at 41/2″ pitch;
    cover: 11/2″.|71.4
    tons|53 min|||7|1|3/4|

    For SI: 1 inch = 25.4 mm, 1 pound per square inch = 0.00689 MPa, 1 ton = 8.896 kN.

Frequently asked questions

Which products are covered by these performance, uniformity and durability rules?

Products specifically called out in the CRSC include detectable warning products and directional surfaces (accessibility products), and the insulating‑material categories listed in Article 3; other product families in the CRSC have their own sections with analogous performance and durability requirements — see §§ 12‑11A.202–.209 and Sec. 12‑13‑1551 for scope and covered insulation types .

How is “durability” measured under the CRSC?

For specified products the code defines objective criteria. For example, detectable warning products and directional surfaces must retain shape, color fastness, conformation, sound‑on‑cane quality, resilience and attachment without “significant degradation,” where “significant degradation” is defined as maintaining at least 90 percent of approved design characteristics (see §§ 12‑11A.209–.210) . Insulation durability and thermal performance are handled through specified conditioning, aging and test protocols in Sec. 12‑13‑1553 .

Who verifies compliance and how often must products be recertified?

Certain products require evaluation by an independent, approved entity selected by the Division of the State Architect‑Access Compliance; detectable warning products and directional surfaces specifically require such evaluation and are subject to recertification cycles (for example a two‑year approval period is specified) — see §§ 12‑11A.205–.206. The Commission and its staff may also perform inspections and independent performance tests under the insulating‑materials article (Secs. 12‑13‑1558–1559) .

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