the 15-minute interval. For fibroustype insulation materials these conditions will only be applicable to the last 13 minutes of the 15-minute interval.

(1) The specimen shall not flame, except that flame from painted or paper coated surfaces may be permitted for not longer than 30 seconds during the first 2 minutes.

(11) The specimen shall not glow brighter than the walls of the heated tube. If glowing at all, the glow shall not increase when the specimen is removed from the heated tube.

(1) The temperatures as indicated by the thermocouples located at the center and on the surface of the specimen shall not rise more than 20° C. above the heated tube air temperature.

(iv) During the test, the specimen shall not give off flammable vapors in such quantity so as to be ignited by the energized platinum wire.

(v) The specimen shall retain at least 50 percent of its original weight.

(e) Reheating test. (1) Two specimens of the material, each 12 by 12 by 6 inches, shall be prepared so that when placed one on top of the other they form a cube 1 foot on a side. A piece of steel weighing approximately 1⁄2 pound consisting of a 16-inch length of 14inch shafting with a thermocouple attached to its side shall be heated uniformly throughout its mass to more than 900° C. The temperature of the steel shall be observed as it cools in room air, free of drafts and it shall be inserted between the two specimens in the center of the faying surfaces when the surface temperature reaches 900° C. In the case of rigid or semirigid type materials, hollows shall be cut in the two faying surfaces in the shape of the shaft so that contact of the two surfaces will be made. Three thermocouples shall be installed between the two faying surfaces at 1, 2, and 3 inches from the shafting, and a 1⁄2 inch steel plate 1 foot square shall be placed on top of the cube to insure a uniform pressure between the two specimens. Readings of the three thermocouples between the specimens and the thermocouple attached to the shafting shall be made at intervals not greater than 5 minutes for the first 2 hours, and 10 minutes thereafter. The test shall continue until such time as the temperatures indicated by all four thermocouples are less than 200° C., or until it is indi

cated that the material has failed to pass the test.

(2) In order to pass this test, all of the following conditions shall be met: (1) There shall be no indication of flame or glow on the exterior of the cube during the test.

(ii) The shafting temperature at any reading shall not be greater than at any previous reading.

(iii) None of the three thermocouples between the faying surfaces shall at any instance indicate a temperature of more than 10° C. above the temperature of the shafting at that time.

(1) Spot check tests. (1) Incombustible materials are not inspected at regularly scheduled factory inspections; however, the Commander of the Coast Guard District in which the plant is located, may detail a marine inspector at any time to visit any place where incombustible materials are manufactured to conduct any inspections or examinations deemed advisable and to select representative samples for further examination, inspection, or tests. The marine inspector shall be admitted to any place where work is done on incombustible materials or component materials.

(2) Manufacturers of approved incombustible materials shall maintain quality control of materials used, manufacturing methods, and the finished product so as to meet the requirements of this specification, and any other conditions outlined on the certificate of approval, but the Coast Guard also reserves the right to make spot-check tests of approved incombustible materials at any time on samples selected by a marine inspector at the place of manufacture or samples obtained from other sources in the field. The manufacturer will incur no expense for such tests, but the results shall be binding upon the approval of his product. The manufacturer will be advised in advance of the time of testing of the samples selected and may witness the tests if he so desires.

[CGFR 65-9, 30 F.R. 11493, Sept. 8, 1965, as amended by CGFR 70-143, 35 F.R. 19967, Dec. 30, 1970]

§ 164.009-4 Procedure for approval.

(a) If a manufacturer desires to have an incombustible material approved, a request shall be presented to the Commandant of the Coast Guard together with the following:

(1) The trade name of the material. (2) A sample of the material at least 1 foot square in each thickness and density of the material as manufactured.

(3) The range of thicknesses and/or densities in which it is proposed to manufacture or use the material together with any information or recommendation the manufacturer may have as to maximum or minimum thicknesses or densities.

(4) A statement of the composition of the material and the percentage of each component in each density.

(5) The location of the place where the material will be manufactured.

(b) The information and samples furnished pursuant to paragraph (a) of this section will be examined by the Coast Guard. If the material appears to be suitable for testing, the manufacturer will be so advised. The size of the samples to be submitted for testing and the cost will be specified at this time.

(c) If the material is indicated as being suitable for testing the manufacturer shall submit the following to the Coast Guard:

(1) Samples of the material as specifiled.

(2) A statement that the material as offered for testing and as described pursuant to paragraph (a) (4) of this section is completely representative of the product which will be manufactured and sold under U.S. Coast Guard approval if such approval is granted.

(3) If the manufacturer desires to witness the test, he should so indicate at this time.

(4) A commitment that he will reimburse the National Bureau of Standards for the cost of the tests when billed by them.

(d) The National Bureau of Standards I will then be authorized to conduct the tests noted in § 164.009-3 and four copies of the report will be submitted to the Coast Guard.

(e) A copy of the test report will be forwarded to the manufacturer, and he will be advised if his material is approved under this subpart. If approved, any stipulations of the approval will be specified. This information will be published in the FEDERAL REGISTER, and an Approval Certificate will be issued to the manufacturer.

(f) If the manufacturer desires to have the tests conducted at some laboratory other than the National Bureau of

Standards, this information shall be supplied at the time of the initial contact with the Coast Guard. If the proposed laboratory is acceptable to the Coast Guard, the manufacturer will be so advised and any special testing requirements will be made at this time. The Coast Guard shall be notified in advance of the date of the test so that a representative may be present. The laboratory shall submit four copies of the test report to the Coast Guard together with representative samples of the material taken before and after testing. The test report and samples will be examined by the National Bureau of Standards for compliance with this subpart. The test report shall include the following information together with any other pertinent data:

(1) Complete time-temperature data for each thermocouple for both the heated tube and reheating tests.

(2) A log setting forth the observer's notes relative to smoke or gas emission, glow, flame emission, and any other important data. The time of each observation should be noted.

Subpart 164.012-Interior Finishes for Merchant Vessels

AUTHORITY NOTE: The provisions of this Subpart 164.012 interpret or apply R.S. 4417, as amended, 4417a, as amended, 4418, as amended, 4426, as amended, 4488, 83 amended, sec. 5, 49 Stat. 1384, as amended, secs. 1, 2, 49 Stat. 1544, 1545, as amended, sec. 3, 54 Stat. 347, as amended, sec. 8, 70 Stat. 152, sec. 3, 68 Stat. 675; 46 U.S.C. 391, 391a, 392, 404, 481, 489, 367, 1333, 390b, 50 U.S.C. 198; E.O. 11239; Treasury Department Orders 120, July 31, 1950, 15 F.R. 6521; 167-14, Nov. 26, 1954, 19 FR. 8026; 167-20, June 18, 1956, 21 F.R. 4894; CGFR 56-28, July 24, 1956, 21 F.R. 5659; 167-38, Oct. 26, 1959, 24 F.R. 8857.

SOURCE: The provisions of this Subpart 164.012 contained in CGFR 61-15, 26 FR. 9303, Sept. 30, 1961, unless otherwise noted. § 164.012-1 Applicable specifications.

(a) The following specifications, of the issue in effect on the contract date for the particular installation on any vessel, form a part of this subpart:

(1) American Society for Testing Materials' standard: E 84-50T-Tentative Method of Fire Hazard Classification for Building Materials.

(2) National Fire Protection Association's standard: NFPA No. 255-Method

of Test of Surface Burning Characteristics of Building Materials.

(3) Coast Guard specifications: 164.008-Bulkhead Panels for Merchan Vessels. 164.009-Incombustible Materials for Merchant Vessels.

(b) A copy of this subpart, together with copies of the specifications referred to in this section, shall be kept on file by the manufacturer of any Interior Finish except those qualifying under § 164.012-5 (c). It should be noted that the standards listed in subparagraphs (1) and (2) of paragraph (a) of this section are identical and, therefore, only one need be kept on file. The Coast Guard specifications may be obtained upon request from the Commandant, U.S. Coast Guard Headquarters, Washington, D.C., 20226. The American Society for Testing Materials Standards may be purchased from that society at 1916 Race Street, Philadelphia, Pa., 19103. The National Fire Protection Association Standard may be purchased from that association at 60 Batterymarch Street, Boston, Mass., 02110. [CGFR 61-15, 26 F.R. 9303, Sept. 30, 1981, as amended by CGFR 65-16, 30 F.R. 10903, Aug. 21, 1965]

§ 164.012-5 Scope.

(a) The purpose of this specification is to set forth the fire protection standards for "Interior Finishes" applied to "Bulkhead Panels" or "Incombustible Materials" approved under Subpart 164.008 or 164.009 of this subchapter. The term "Interior Finish" means any coating, overlay, or veneer except standard paint which is applied for decorative or other purpose. It includes not only the visible finish, but all material used in its composition and in its application to the approved "Bulkhead Panel" or "Incombustible Material." When finishes are applied to both sides of a panel, each must comply with this specification.

(b) "Interior Finishes" of not more than 0.075" thickness qualifying under § 164.012-10 and those materials which are described in paragraph (c) of this section, may be used without restriction on all merchant vessels, including those locations where combustible veneers, trim, moldings, and decorations are specifically prohibited by Subpart 72.05 of Subchapter H (Rules and Regulations for Passenger Vessels) of this chapter.

(c) With the exception of nitrocellulose or other highly inflammable or

noxious fume-producing paints or lacquers (which are prohibited), a limited number of coats of any standard paint, or any "Incombustible Material" approved under Subpart 164.009 of this subchapter in any thickness, or a combination thereof, are considered as automatically satisfying the intent of this specification and no test or proof of compliance will be required. Paint may be applied to one or both sides of "Bulkhead Panels" or "Incombustible Materials," but it shall never be applied as an internal layer in sandwich or laminar construction.

§ 164.012-10 Requirements.

(a) For an "Interior Finish" to qualify under this specification it shall not be more than 0.075 inch thick (including adhesive and any underlayment) and shall be subjected to the test described in either standard listed in § 164.012-1 (a) (1) or (2). The "Interior Finish" shall be applied to a 1/4-inch asbestos cement board, "Bulkhead Panel" or "Incombustible Material" approved under Subparts 164.008 and 164.009, in the same manner as will be employed for the shipboard installation. The classification ratings determined by this test shall not exceed the following values: Flame spread classification__. Smoke classification_-_-_

20

-

10

[CGFR 70-143, 35 F.R. 19967, Dec. 30, 1970] § 164.012-11 Marking.

In addition to that information required by the recognized laboratory, the following information and special markings shall be included:

Complies with USCG Subpart 164.012. Approval No. 164.012/-.

[CGFR 70-143, 35 F.R. 19967, Dec. 30, 1970] § 164.012-12 Recognized laboratory.

A recognized laboratory is one which is operated as a nonprofit public service and is regularly engaged in the examination, testing, and evaluation as to the safety of insulation and surfacing materials; which has an established factory inspection, listing, and labeling program; and which has standards for evaluating listing and labeling which are acceptable to the Commandant. The following laboratories are recognized:

Underwriters' Laboratories, Inc.
207 East Ohio Street
Chicago, IL 60611

[CGFR 70-143, 35 F.R. 19967, Dec. 30, 1970]

(a) Manufacturer's inspection and tests. Manufacturers of listed and labeled Interior Finishes shall maintain quality control of the materials used, manufacturing methods and the finished product so as to meet the applicable requirements, and shall make sufficient inspections and tests of representative samples and components produced to maintain the quality of the finished product. Records of tests conducted by the manufacturer and records of materials, including affidavits by suppliers that applicable requirements are met, entering into manufacture shall be made available to the recognized laboratory inspector or the Coast Guard marine inspector, or both, for review upon request.

(b) Laboratory inspection and tests. Such examinations, inspections and tests as are required by the recognized laboratory for listed and labeled material produced will be conducted by the laboratory inspector at the place of manufacture or other location at the option of the laboratory.

(c) Test facilities. The laboratory inspector, or the Coast Guard marine inspector assigned by the Commander of the District in which the factory is located, or both, shall be admitted to any place in the factory where work is being done on listed and labeled products, and either or both inspectors may take samples of parts or materials entering into construction of final assemblies, for further examinations, inspections, or tests. The manufacturer shall provide a suitable place and the apparatus necessary for the performance of the tests which are done at the place of manufacture.

(d) Additional tests, etc. Unannounced examinations, tests, and inspections of samples obtained either directly from the manufacturer or through commercial channels may be made to determine the suitability of a product for listing and labeling, or to determine conformance of a labeled product to the applicable requirements. These may be conducted by the recognized laboratory or the U.S. Coast Guard.

[CGFR 70-143, 35 F.R. 19967, Dec. 30, 1970] § 164.012-14 Procedure for listing and labeling.

(a) Manufacturers having a surfacing material which they consider has

characteristics suitable for general use on merchant vessels may make application for listing and labeling as an interior finish by addressing a request directly to a recognized laboratory. The laboratory will inform the submitter as to the requirements for inspection, examinations, and testing necessary for such listing and labeling. The request shall include a permission for the laboratory to furnish a complete test report together with a description of the quality control procedures to the Commandant, U.S. Coast Guard.

(b) The U.S. Coast Guard will review the test report and quality control procedures to determine if the approval requirements have been met. If this is the case, the Commandant will notify the laboratory that the material is approved and that when the material is listed and labeled it may be marked as being U.S. Coast Guard approved. Notice of U.S. Coast Guard approval will be published in CG-190.

(c) If disagreements concerning procedural, technical or inspection questions arise over U.S. Coast Guard approval requirements the opinion of the Commandant shall be requested by the laboratory.

(d) The manufacturer may at any time request clarification or advice from the Commandant on any question which may arise regarding manufacturing and approval of approved devices.

[CGFR 70-143, 35 F.R. 19967, Dec. 30, 1970] § 164.012-15 Termination of listing and labeling.

(a) Listing and iabeling as an interior finish acceptable to the Commandant as approved may be terminated, withdrawn, canceled, or suspended by written notice to the recognized laboratory from the Commandant, or by written notice to the manufacturer from the recognized laboratory or from the Commandant.

(b) The condition which may be the cause for termination of listing and labeling may be any of the following:

(1) When the manufacturer does not desire to retain the service.

(2) When the listed product is no longer being manufactured.

(3) When manufacturer's own program does not provide suitable assurance of the quality of the listed and labeled product being manufactured.

(4) When the product manufactured no longer conforms to the current ap