1、.- . MIL-C-24915A 3 99999Ob 04b9444 7 = V i INCH-POUND MIL-C-24915A 6 February 91 SUPERSEDING 6 June 1984 MIL-C-24915 MILITARY SPECIFICATION CLOTH, DENIM, COTTON (FLAME RETARDANT TREATED) This specification is approved for use by the Navy Clothing and Textile Research Facility, Department of the Nav
2、y, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of cotton denim cloth. which has been treated with a flame retardant finish. 2. APPLICABLE DOCUMENTS 2.1 Government documents. * 2.1.1 Specifications, stan
3、dards, and handbooks. The following specifications, standards,and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in that issue of the Department of Defense Index of Specifications and Standards (D
4、ODISS) and supplement thereto, cited in the solicitation (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Officer in Charge, Navy Clothing and Textile Research Facility, Post Office Bo
5、x 59, Natick, MA 01760-0001 by using the self-addressed standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 8305 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo
6、 reproduction or networking permitted without license from IHS-,-,- MIL-C-24915A 83 9799906 0469445 9 m (I SPECIFICATIONS FEDERAL il-T-276 - Thread, Cotton PPP-P-1134 - Packaging, Packing of Cotton and Cotton-Synthetic Fiber-Blend Fabrics (Excluding Duck Fabrics) STANDARDS FEDERAL FED-STD-4 - Glossa
7、ry of Fabric Imperfections FED-STD-191 - Textile Test Methods MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspections by MIL-STD-129 - Marking for Shipment and Storage Attributes * MIL-STD-2073-1 - DoD Materials Procedures Development and Application * MIL-STD-2073-2 - Packaging Requir
8、ement Codes of Packaging Requirements * (Unless otherwise indicated, copies of federal and military specification, standards, and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) * 2.1.2 Other Government documents,
9、drawings, and publications. The following other Government documents, drawings, and publications form a Dart of this document to the extent specified herein. the issues are those cited in the solicitation. Uniess otherwise specified, Rules and Regulations Under the Textile Fiber Products Identificat
10、ion Act (Copies may be obtained without charge from the Federal Trade Commission, Washington, DC 20580.) * 2.2 Non-Government publications. The following document(s) form a part of this specification to the extent specified herein. Unless otherwise specified, the issue of documents which are DoD ado
11、pted shall be those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). TECHNICAL MANUAL OF THE AMERICAN ASSOCIATION OF TEXTILE CHEMIST AND COLOR
12、ISTS Method No. 8-1985 - Colorfastness to Crocking: AATCC Crockmeter Method (Application for copies should be addressed to the AATCC National Headquarters, P.O. Box 12215, Research Triangle Park, NC 27709-2215.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
13、rom IHS-,-,-w- MIL-C-249L5A 83 m 999990b 04b944b O m MIL-C-24915A AMERICAN SOCIETY FOR TESTING MATERIALS ASTM-D-1424 Tear Resistance of Woven Fabrics By Falling-Pendulum (Elmendorf) Apparatus (Application for copies should be addressed to American Society for Testing and Materials, 1916 Race Street,
14、 Philadelphia, PA 19103-1187.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) * 2.3 Order of precedence. In the ev
15、ent of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. . REQUIREMENTS * 3.1 Standard sample. The f
16、inished cloth shall match the standard sample for shade and uniformity of shade and shall be equal to or better than the standard sample with respect to all characteristics for which the standard sample is referenced (see 6.3). The standard sample is identified under piece no. 88307. 3.2 Formula app
17、roval. The prospective contractor or his finishing plant shall submit with his bid to the contracting officer for approval, a list of materials which will be used if contract is awarded. The list shall stipulate amounts, grades, and standards for all materials including solvents, and the manufacture
18、rs name. This list is for the information of the Government and is not to be disseminated to the public. Approval of the quantitative formula submitted shall in no way absolve the contractor from complying with the performance requirements of this specification. 3.3 First article. When specified (se
19、e 4.3 and 6.2), the contractor shall furnish a sample for first article inspection and approval. 3.4 Material. 3.4.1 Yarn. Warp and filling shall be single yarns made from carded cotton 3.5 Weave. The weave shall be a 2 up - 1 down right hand twill (see 4.5). 3.6 Preparation. The cloth shall be sing
20、ed and desized (see 4.4.1 and 4.5). 3.7 Color. The color shall be Navy shade Blue 3371 and shall match the standard sample. The warp shall be Indigo dyed. The filling yarn may be tinted. (see 4.4.1 and 4.5). 3.7.1 Sulfur content. The use of dyes and compounds containing elementary sulfur capable of
21、oxidation to sulfuric acid is prohibited. The dyestuff shall be chosen and applied so that the dyed and finished cloth shall contain no more labile sulfur than shown by the standard sample when tested as 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
22、,-,-MIL-C-24915A 3 9999306 04b9Y47 2 W P MIL-C-24915A specified in 4.5. When a standard sample is not available, the dyed cloth shall show no more than a slight trace of labile sulfur as defined in the test method specified in 4.5. * 3.7.2 Matching. The color and appearance of the dyed and finished
23、cloth shall match the standard sample when viewed under filtered tungsten lamps which approximate artificial daylight having a correlated color temperature at 7500(+ 200 K), with illumination of loo(+ 20) foot candles, and shall be a good match to the standard sample under incandescent lamplight at
24、2300(+ 200 K) (see 4.4.2.5). - * 3.7.3 Colorfastness. The finished cloth shall show fastness to laundering (after 3 cycles), light (after 40 standard fading hours), crocking and perspiration equal to or better than the standard sample when tested as specified in 4.5. As a limit of acceptability or w
25、hen no standard sample is available, the finished cloth shall show a minimum of “good“ fastness to light (40 SFH), fair fastness to perspiration, a color change after laundering no greater than 2-3 on AATCC Gray Scale for color change and crocking no less than 3.0 dry and 1.5 wet when tested as spec
26、ified in 4.5. * 3.8 Physical requirements. The finished cloth shall conform to the physical requirements shown in Table I when tested as specified in 4.5. Table I - Physical Requirements Characteristics Requirements Weight - oz/yd2 (g/m2) - Minimum * Desized * Finished Yarns per inch (2.5 cm) - Mini
27、mum * Warp Filling Breaking stength - lbs (Newtons) Minimum * Warp * Filling Tearing strength - lbs (Newtons) Minimum * Warp Filling 4 9.0 (305) 12.5 (+1.0)(424) - 67 42 125 (556) 100 (445) 5.0 .(22) 5.0 (22) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from I
28、HS-,-,-a O a z -9 MIL-C-24915A 83 999990b 04b944 4 MIL-C-24915A Table I - Physical Requirements (contd) Characteristics Requirements Stiffness in. lbs (N.m) Maximum Warp Filling Air permeability f t3/min/ft2 (cm3/sec/cm2) Minimum 0.015(0.0017) 0.010(0.0012) 9 (4.57) * 3.8.1 Width. The width of the c
29、loth shall be as specified (see 6.2) and shall be the minimum acceptable wid th inclusive of selvages when fly shuttle looms or shuttleless looms, with tuck-in selvage looms are used. For all other shuttleless looms the width measurement shall be made between the last warp yarn on each side excludin
30、g the protruding fringe. 3.9 Seam efficiency. The cloth shall have a seam efficiency of not less than 80 percent when tested as specified in 4.5. * 3.10 Dimensional stability. The finished cloth shall not shrink nor elongate more than 3.0% in either the warp or filling when tested as specified in 4.
31、5. The pre-shrinking process used shall not be identified by name or by trademark, either on the cloth, ticket, or package. * 3.11 Treatment. The cloth shall be given an approved flame retardant treatment (see 6.5 and 6.6). The finished cloth shall have an average time of after flame time of not mor
32、e than 2.0 seconds, not more than 5.0 seconds average after-glow time and an average length of char of not more than 5.0 inches (12.5cm), both initially and after 25 launderings when tested as specified in 4.5. 3.12 pH. The pH value of the water extract of the finished cloth shall be no lessthan 5.0
33、 nor more than 8.5 when tested as specified in 4.5. 3.13 Non-fibrous material. The cloth, prior to treatment, shall show no more than 2.0 percent starch and protein content including chloroform-soluble and water-soluble material, when tested as specified in 4.5. 3.14 Toxicity approval. Only those fl
34、ame retardant treatments already evaluated and approved by the appropriate medical service in regards to toxicity and so listed in the invitation for bids or request for proposal shall be considered acceptable for the related procurement (see 6.5). * 3.15 Length and put-up. Unless otherwise specifie
35、d (see 6.2), the finished cloth shall be furnished in continuous lengths, each not less than 40 yards (36.6m). Each length shall be put-up on a roll as specified in 5.1. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-24915A * 3.16 Face ident
36、ification. The face side of the cloth shall be identified by stamping “FACE“ on that side of the cloth at each end of the roll. * 3.17 Fiber identification. Each piece shall be labeled or ticketed for fiber content in accordance with the Rules and Regulations under the Textile Fiber Products Identif
37、ication Act. 3.18 Workmanship. The finished cloth shall conform to the quality established by this specification. The demerit points per 100 square yards (83.6111 ), when calculated as specified in section 4, shall not exceed the established maximum point values. 4. QUALITY ASSURANCE PROVISIONS * 4.
38、1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and -tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contract
39、or may use his own or any other facilities suitable for performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to
40、 ensure supplies and services conform to prescribed requirements. * 4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The a
41、bsence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operation
42、s, is acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the government to acceptance of defective material. 4.1.2 Certificate of compliance. Where certificates of compl
43、iance are submitted, the Government reserves the right to check test such items to determine the validity of the certification. 4.2 Classification of inspection. The. inspection requirements specified herein are classified as follows: 1. First article inspection (see 4.3). 2. Quality conformance ins
44、pection (see 4.4). * 4.3 First article inspection. When required (see 6.2), the first article of finished cloth submitted in accordance with 3.3 shall be visually inspected for uniformity of shade, color, and finished appearance, and shall be tested for chemical and physical properties in accordance
45、 with methods specified in .- 4.3. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a a a MIL-C-24715A 3 = 7777706 0467450 2 MIL-C-24915A 4.4 Quality conformance inspection. Sampling for inspection shall be performed in accordance with MIL-STD-105,
46、except where otherwise indicated. * 4.4.1 Component and material inspection. In accordance with 4.1 above, components and materials shall be tested in accordance with all the requirements of referenced specifications, drawings, and standards unless otherwise excluded, amended, modified, or qualified
47、 in this specification or applicable procurement documents. A certificate of compliance may be submitted for the material requirements of 3.4.1 and the singeing of 3.6. * 4.4.2 Examination of the end item. Examination of the end item shall be in accordance with 4.4.2.1 through 4.4.2.5. * 4.4.2.1 Yar
48、d-by-yard examination. Each roll in the sample shall be examined on face side only. When the total yardage in the roll does not exceed 100 yards (91.4111) the entire yardage in the roll shall be examined. When the total yardage in the roll exceeds 100 yards (91.4m), only 100 yards (91.4111) shall be
49、 examined. All defects are defined in Section 1 of FED-STD-4, which are clearly noticeable at normal inspection distance (3 feet) (0.91111) shall be scored and assigned demerit points as listed in 4.4.2.1.1, except that only the slubs and knots which exceed the limits shown on Sears Fabric Defect Scale (see 6.4), IE“ or l3“ as applicable for slubs and “C“ for knots shall be scored. No linear yard (increments of 1 yard (0.91m) on the measuring dev
